Recruitment｜Cyber Defense Institute, Inc.

At Cyber Defense Institute, Inc. all our members possess exceptional abilities in their chosen specialization.

We work in collaboration with world-class security experts both within Japan and from overseas to provide security services to our clients. The quality of our services always comes down to the “people” – the individuals and their contributions. We invite you to join us and put your skills to use in collaboration with our engineers, working hard together to benefit customers, and society as a whole. In combination with and through friendly competition, join your colleagues in further cultivating and polishing your skills.

Cyber Defense Institute, Inc. believes in building a working environment that prioritizes freedom where your ideas to improve the security of clients, and build your own skills are made possible. We look forward to hearing from you!

Infrastructure Engineer

Application Development Engineer

Reverse Engineer / Exploit Developer

Corporate Sales

Product Marketing

PMO

Employment Type	Full-time employee 3-month probationary period (no changes to working conditions during this period)
Work Location	Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Smoking Policy	Indoor smoking is permitted in designated areas.
Working Hours	Flextime system Standard working hours: 8 hours per day Core hours: 11:00 AM – 2:00 PM
Working Style	This is a hybrid position based in Tokyo. While remote work is available depending on the project and team situation, regular attendance at the Tokyo office is required.
Holidays and Leave	122 annual holidays Complete two-day weekends (Saturdays and Sundays) National holidays Year-end and New Year holidays Substitute holidays for national holidays falling on a Saturday Paid leave: 10 to 20 days per year Family-friendly leave (including marriage leave, maternity/paternity leave, prenatal checkup leave, childcare leave, child nursing leave, caregiving leave, bereavement leave, etc.)
Social Insurance	Employment Insurance Health Insurance Employees' Pension Insurance Workers' Accident Compensation Insurance
Visa Requirements	Applicants must be eligible to work in Japan. While the company does not cover visa application fees or related costs, we will provide necessary documents and support required for the visa application process.
Salary	Annual salary system
Benefits and Welfare	Defined contribution pension plan (401K) Commuting allowance (according to company policy) Housing allowance (according to company policy) Financial incentive for savings and investments (according to company policy) Support for obtaining professional certifications Discounted rates for various insurance products Congratulatory and condolence payment system Employee benefit programs: Relo Club, Benefit One (cafeteria plan) Free office drinks Many unofficial employee clubs (voluntary participation)
Job Description	As an infrastructure engineer at a cybersecurity company, you will be involved in a wide range of responsibilities across multiple layers of the technology stack. This includes internal infrastructure development, the design and operation of security log analysis platforms, as well as work spanning networks, servers, and even application development—all essential components in delivering security services. Security service development Maintenance and improvement of internal infrastructure Design of new services
Essential criteria	At least 3 years of experience in implementing, maintaining, managing, and troubleshooting infrastructure services At least 3 years of experience working in a Linux environment Technical proficiency equivalent to the Fundamental Information Technology Engineer Examination Willingness to work with public key authentication, on-premises environments, and Command-Line Interfaces Business-level Japanese is required (ability to create and submit reports to clients in Japanese)
Preferred Skills	Experience with automation and deployment strategies for server systems and desktop computers using Ansible, Active Directory GPO, or Intune Ability to build cooperative relationships and communicate effectively with IT infrastructure teams, security teams, and internal infrastructure users Understanding of virtualization technologies such as HyperV, KVM, and VMware, as well as container technologies Experience in identity management Knowledge and experience with Public Key Infrastructure (PKI), including x509 digital certificates Knowledge and experience in log monitoring and visualization Development experience with Python or Golang Experience and understanding of essential network protocols such as DNS, NTP, and HTTP System design capabilities Experience in internal activities related to team building and knowledge sharing Ability to align customer needs with technical solutions
Ideal Candidate Profile	Individuals interested in working on infrastructure related to cybersecurity Those who want to be involved in building systems that are not dependent on cloud environments Individuals who wish to engage in various types of development related to security Those eager to work across multiple technology layers Individuals looking to participate in a diverse range of projects

Employment type Full-time employee 3-month probationary period (no changes to working conditions during this period)
Work Location Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Smoking Policy Indoor smoking is permitted in designated areas.
Working Hours Flextime system Standard working hours: 8 hours per day Core hours: 11:00 AM – 2:00 PM
Working Style This is a hybrid position based in Tokyo. While remote work is available depending on the project and team situation, regular attendance at the Tokyo office is required.
Holidays and Leave 122 annual holidays Complete two-day weekends (Saturdays and Sundays) National holidays Year-end and New Year holidays Substitute holidays for national holidays falling on a Saturday Paid leave: 10 to 20 days per year Family-friendly leave (including marriage leave, maternity/paternity leave, prenatal checkup leave, childcare leave, child nursing leave, caregiving leave, bereavement leave, etc.)
Social Insurance Employment Insurance Health Insurance Employees' Pension Insurance Workers' Accident Compensation Insurance
Visa Requirements Applicants must be eligible to work in Japan. While the company does not cover visa application fees or related costs, we will provide necessary documents and support required for the visa application process.
Salary Annual salary system
Benefits and Welfare Defined contribution pension plan (401K) Commuting allowance (according to company policy) Housing allowance (according to company policy) Financial incentive for savings and investments (according to company policy) Support for obtaining professional certifications Discounted rates for various insurance products Congratulatory and condolence payment system Employee benefit programs: Relo Club, Benefit One (cafeteria plan) Free office drinks Many unofficial employee clubs (voluntary participation)
Job Description As an infrastructure engineer at a cybersecurity company, you will be involved in a wide range of responsibilities across multiple layers of the technology stack. This includes internal infrastructure development, the design and operation of security log analysis platforms, as well as work spanning networks, servers, and even application development—all essential components in delivering security services. Security service development Maintenance and improvement of internal infrastructure Design of new services
Essential criteria At least 3 years of experience in implementing, maintaining, managing, and troubleshooting infrastructure services At least 3 years of experience working in a Linux environment Technical proficiency equivalent to the Fundamental Information Technology Engineer Examination Willingness to work with public key authentication, on-premises environments, and Command-Line Interfaces Business-level Japanese is required (ability to create and submit reports to clients in Japanese)
Preferred Skills Experience with automation and deployment strategies for server systems and desktop computers using Ansible, Active Directory GPO, or Intune Ability to build cooperative relationships and communicate effectively with IT infrastructure teams, security teams, and internal infrastructure users Understanding of virtualization technologies such as HyperV, KVM, and VMware, as well as container technologies Experience in identity management Knowledge and experience with Public Key Infrastructure (PKI), including x509 digital certificates Knowledge and experience in log monitoring and visualization Development experience with Python or Golang Experience and understanding of essential network protocols such as DNS, NTP, and HTTP System design capabilities Experience in internal activities related to team building and knowledge sharing Ability to align customer needs with technical solutions
Ideal Candidate Profile Individuals interested in working on infrastructure related to cybersecurity Those who want to be involved in building systems that are not dependent on cloud environments Individuals who wish to engage in various types of development related to security Those eager to work across multiple technology layers Individuals looking to participate in a diverse range of projects

Employment Type	Full-time employee 3-month probationary period (no changes to working conditions during this period)
Work Location	Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Smoking Policy	Indoor smoking is permitted in designated areas.
Working Hours	Flextime system Standard working hours: 8 hours per day Core hours: 11:00 AM – 2:00 PM
Working Style	This is a hybrid position based in Tokyo. While remote work is available depending on the project and team situation, regular attendance at the Tokyo office is required.
Holidays and Leave	122 annual holidays Complete two-day weekends (Saturdays and Sundays) National holidays Year-end and New Year holidays Substitute holidays for national holidays falling on a Saturday Paid leave: 10 to 20 days per year Family-friendly leave (including marriage leave, maternity/paternity leave, prenatal checkup leave, childcare leave, child nursing leave, caregiving leave, bereavement leave, etc.)
Social Insurance	Employment Insurance Health Insurance Employees' Pension Insurance Workers' Accident Compensation Insurance
Visa Requirements	Applicants must be eligible to work in Japan. While the company does not cover visa application fees or related costs, we will provide necessary documents and support required for the visa application process.
Salary	Annual salary system
Benefits and Welfare	Defined contribution pension plan (401K) Commuting allowance (according to company policy) Housing allowance (according to company policy) Financial incentive for savings and investments (according to company policy) Support for obtaining professional certifications Discounted rates for various insurance products Congratulatory and condolence payment system Employee benefit programs: Relo Club, Benefit One (cafeteria plan) Free office drinks Many unofficial employee clubs (voluntary participation)
Job Description	Development of our PIV Gateway Service Authentication using x509 and attribute certificates Authorization flow implementation Development aligned with customer needs Product structuring and utilization
Essential criteria	At least 3 years of development experience with JavaScript, Python, or Golang Technical proficiency equivalent to the Fundamental Information Technology Engineer Examination Willingness to work with public key authentication, on-premises environments, and Command-Line Interfaces Business-level Japanese is required (ability to create and submit reports to clients in Japanese)
Preferred Skills	Understanding of virtualization technologies such as HyperV, KVM, and VMware, as well as container technologies Experience in authentication management Experience developing and utilizing TPM, HSM, or PKCS11 Development experience with Erlang, Golang, or gRPC Experience in Web API design Understanding of IAM in cloud services System design capabilities Ability to align customer needs with technical solutions Experience in internal activities related to team building and knowledge sharing
Ideal Candidate Profile	Individuals interested in developing security-related applications Those who want to provide secure services using TPM or PKCS#11 devices Individuals who wish to engage in various types of development related to cybersecurity Those looking to participate in a wide range of projects

Employment type Full-time employee 3-month probationary period (no changes to working conditions during this period)
Work Location Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Smoking Policy Indoor smoking is permitted in designated areas.
Working Hours Flextime system Standard working hours: 8 hours per day Core hours: 11:00 AM – 2:00 PM
Working Style This is a hybrid position based in Tokyo. While remote work is available depending on the project and team situation, regular attendance at the Tokyo office is required.
Holidays and Leave 122 annual holidays Complete two-day weekends (Saturdays and Sundays) National holidays Year-end and New Year holidays Substitute holidays for national holidays falling on a Saturday Paid leave: 10 to 20 days per year Family-friendly leave (including marriage leave, maternity/paternity leave, prenatal checkup leave, childcare leave, child nursing leave, caregiving leave, bereavement leave, etc.)
Social Insurance Employment Insurance Health Insurance Employees' Pension Insurance Workers' Accident Compensation Insurance
Visa Requirements Applicants must be eligible to work in Japan. While the company does not cover visa application fees or related costs, we will provide necessary documents and support required for the visa application process.
Salary Annual salary system
Benefits and Welfare Defined contribution pension plan (401K) Commuting allowance (according to company policy) Housing allowance (according to company policy) Financial incentive for savings and investments (according to company policy) Support for obtaining professional certifications Discounted rates for various insurance products Congratulatory and condolence payment system Employee benefit programs: Relo Club, Benefit One (cafeteria plan) Free office drinks Many unofficial employee clubs (voluntary participation)
Job Description Development of our PIV Gateway Service Authentication using x509 and attribute certificates Authorization flow implementation Development aligned with customer needs Product structuring and utilization
Essential criteria At least 3 years of development experience with JavaScript, Python, or Golang Technical proficiency equivalent to the Fundamental Information Technology Engineer Examination Willingness to work with public key authentication, on-premises environments, and Command-Line Interfaces Business-level Japanese is required (ability to create and submit reports to clients in Japanese)
Preferred Skills Understanding of virtualization technologies such as HyperV, KVM, and VMware, as well as container technologies Experience in authentication management Experience developing and utilizing TPM, HSM, or PKCS11 Development experience with Erlang, Golang, or gRPC Experience in Web API design Understanding of IAM in cloud services System design capabilities Ability to align customer needs with technical solutions Experience in internal activities related to team building and knowledge sharing
Ideal Candidate Profile Individuals interested in developing security-related applications Those who want to provide secure services using TPM or PKCS#11 devices Individuals who wish to engage in various types of development related to cybersecurity Those looking to participate in a wide range of projects

Employment Type	Full-time employee 3-month probationary period (no changes to working conditions during this period)
Work Location	Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Smoking Policy	Indoor smoking is permitted in designated areas.
Working Hours	Flextime system Standard working hours: 8 hours per day Core hours: 11:00 AM – 2:00 PM
Working Style	This is a hybrid position based in Tokyo. While remote work is available depending on the project and team situation, regular attendance at the Tokyo office is required.
Holidays and Leave	122 annual holidays Complete two-day weekends (Saturdays and Sundays) National holidays Year-end and New Year holidays Substitute holidays for national holidays falling on a Saturday Paid leave: 10 to 20 days per year Family-friendly leave (including marriage leave, maternity/paternity leave, prenatal checkup leave, childcare leave, child nursing leave, caregiving leave, bereavement leave, etc.)
Social Insurance	Employment Insurance Health Insurance Employees' Pension Insurance Workers' Accident Compensation Insurance
Visa Requirements	Applicants must be eligible to work in Japan. While the company does not cover visa application fees or related costs, we will provide necessary documents and support required for the visa application process.
Salary	Annual salary system
Benefits and Welfare	Defined contribution pension plan (401K) Commuting allowance (according to company policy) Housing allowance (according to company policy) Financial incentive for savings and investments (according to company policy) Support for obtaining professional certifications Discounted rates for various insurance products Congratulatory and condolence payment system Employee benefit programs: Relo Club, Benefit One (cafeteria plan) Free office drinks Many unofficial employee clubs (voluntary participation)
Job Description	Investigate software vulnerabilities through reverse engineering using tools such as IDA Pro Develop proof-of-concept exploits for vulnerabilities using Python or C Propose remediation and mitigation strategies for identified vulnerabilities
Required Experience	Experience in reverse engineering using tools such as IDA, GDB, or WinDbg Ability to develop exploits to demonstrate vulnerabilities Capability to share reverse engineering and exploit development findings and experiences through presentations and written documentation in Japanese or English
Essential criteria	Ability to develop exploits to demonstrate vulnerabilities Business-level Japanese is required (ability to create and submit reports to clients in Japanese)
Preferred Skills	Track record of vulnerability disclosures in commercial software products Achievements in Capture The Flag (CTF) competitions or similar cybersecurity contests Experience speaking at domestic or international security conferences or study groups Over two years of professional experience in fields related to reverse engineering or exploit development
Ideal Candidate Profile	Highly intellectually curious and enjoys understanding the inner workings of software and devices Comfortable reading datasheets and technical specifications Able to clearly define the objectives and goals of new tasks Capable of choosing appropriate solutions to tackle technical challenges Willing and able to share knowledge and information at the right level of detail Proactively engages in technical communication and provides candid feedback to peers

Employment type Full-time employee 3-month probationary period (no changes to working conditions during this period)
Work Location Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Smoking Policy Indoor smoking is permitted in designated areas.
Working Hours Flextime system Standard working hours: 8 hours per day Core hours: 11:00 AM – 2:00 PM
Working Style This is a hybrid position based in Tokyo. While remote work is available depending on the project and team situation, regular attendance at the Tokyo office is required.
Holidays and Leave 122 annual holidays Complete two-day weekends (Saturdays and Sundays) National holidays Year-end and New Year holidays Substitute holidays for national holidays falling on a Saturday Paid leave: 10 to 20 days per year Family-friendly leave (including marriage leave, maternity/paternity leave, prenatal checkup leave, childcare leave, child nursing leave, caregiving leave, bereavement leave, etc.)
Social Insurance Employment Insurance Health Insurance Employees' Pension Insurance Workers' Accident Compensation Insurance
Visa Requirements Applicants must be eligible to work in Japan. While the company does not cover visa application fees or related costs, we will provide necessary documents and support required for the visa application process.
Salary Annual salary system
Benefits and Welfare Defined contribution pension plan (401K) Commuting allowance (according to company policy) Housing allowance (according to company policy) Financial incentive for savings and investments (according to company policy) Support for obtaining professional certifications Discounted rates for various insurance products Congratulatory and condolence payment system Employee benefit programs: Relo Club, Benefit One (cafeteria plan) Free office drinks Many unofficial employee clubs (voluntary participation)
Job Description Investigate software vulnerabilities through reverse engineering using tools such as IDA Pro Develop proof-of-concept exploits for vulnerabilities using Python or C Propose remediation and mitigation strategies for identified vulnerabilities
Required Experience Experience in reverse engineering using tools such as IDA, GDB, or WinDbg Ability to develop exploits to demonstrate vulnerabilities Capability to share reverse engineering and exploit development findings and experiences through presentations and written documentation in Japanese or English
Essential criteria Ability to develop exploits to demonstrate vulnerabilities Business-level Japanese is required (ability to create and submit reports to clients in Japanese)
Preferred Skills Track record of vulnerability disclosures in commercial software products Achievements in Capture The Flag (CTF) competitions or similar cybersecurity contests Experience speaking at domestic or international security conferences or study groups Over two years of professional experience in fields related to reverse engineering or exploit development
Ideal Candidate Profile Highly intellectually curious and enjoys understanding the inner workings of software and devices Comfortable reading datasheets and technical specifications Able to clearly define the objectives and goals of new tasks Capable of choosing appropriate solutions to tackle technical challenges Willing and able to share knowledge and information at the right level of detail Proactively engages in technical communication and provides candid feedback to peers

Employment Type	Full-time employee 3-month probationary period (no changes to working conditions during this period)
Work Location	Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Smoking Policy	Indoor smoking is permitted in designated areas.
Working Hours	Flextime system Standard working hours: 8 hours per day Core hours: 11:00 AM – 2:00 PM
Working Style	This is a hybrid position based in Tokyo. While remote work is available depending on the project and team situation, regular attendance at the Tokyo office is required.
Holidays and Leave	122 annual holidays Complete two-day weekends (Saturdays and Sundays) National holidays Year-end and New Year holidays Substitute holidays for national holidays falling on a Saturday Paid leave: 10 to 20 days per year Family-friendly leave (including marriage leave, maternity/paternity leave, prenatal checkup leave, childcare leave, child nursing leave, caregiving leave, bereavement leave, etc.)
Social Insurance	Employment Insurance Health Insurance Employees' Pension Insurance Workers' Accident Compensation Insurance
Visa Requirements	Applicants must be eligible to work in Japan. While the company does not cover visa application fees or related costs, we will provide necessary documents and support required for the visa application process.
Salary	Annual salary system
Benefits and Welfare	Defined contribution pension plan (401K) Commuting allowance (according to company policy) Housing allowance (according to company policy) Financial incentive for savings and investments (according to company policy) Support for obtaining professional certifications Discounted rates for various insurance products Congratulatory and condolence payment system Employee benefit programs: Relo Club, Benefit One (cafeteria plan) Free office drinks Many unofficial employee clubs (voluntary participation)
Job Description	Communication with clients Communication with engineers Proposing solutions to clients Project management (schedule coordination/progress management) Sales administration tasks such as contract procedures
Essential criteria	Sales experience in the IT industry Experience in tasks such as estimation, order processing, contract execution, delivery inspection, and invoicing Business-level Japanese is required (ability to create and submit reports to clients in Japanese)
Preferred Skills	Sales experience at an SIer (System Integrator) Experience in sales to government agencies Knowledge of the cybersecurity field Sales experience in penetration testing, forensics, and intelligence
Ideal Candidate Profile	Proactive and able to think and act independently without waiting for instructions Holds deep respect for security technologies and professionals, and treats them with care Capable of accurately documenting and sharing information in written form Dedicated to eliminating inefficiencies and committed to improving productivity Focused on understanding the essence rather than the surface, and able to engage sincerely with both internal and external stakeholders, considering the purpose and context

Employment type Full-time employee 3-month probationary period (no changes to working conditions during this period)
Work Location Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Smoking Policy Indoor smoking is permitted in designated areas.
Working Hours Flextime system Standard working hours: 8 hours per day Core hours: 11:00 AM – 2:00 PM
Working Style This is a hybrid position based in Tokyo. While remote work is available depending on the project and team situation, regular attendance at the Tokyo office is required.
Holidays and Leave 122 annual holidays Complete two-day weekends (Saturdays and Sundays) National holidays Year-end and New Year holidays Substitute holidays for national holidays falling on a Saturday Paid leave: 10 to 20 days per year Family-friendly leave (including marriage leave, maternity/paternity leave, prenatal checkup leave, childcare leave, child nursing leave, caregiving leave, bereavement leave, etc.)
Social Insurance Employment Insurance Health Insurance Employees' Pension Insurance Workers' Accident Compensation Insurance
Visa Requirements Applicants must be eligible to work in Japan. While the company does not cover visa application fees or related costs, we will provide necessary documents and support required for the visa application process.
Salary Annual salary system
Benefits and Welfare Defined contribution pension plan (401K) Commuting allowance (according to company policy) Housing allowance (according to company policy) Financial incentive for savings and investments (according to company policy) Support for obtaining professional certifications Discounted rates for various insurance products Congratulatory and condolence payment system Employee benefit programs: Relo Club, Benefit One (cafeteria plan) Free office drinks Many unofficial employee clubs (voluntary participation)
Job Description Communication with clients Communication with engineers Proposing solutions to clients Project management (schedule coordination/progress management) Sales administration tasks such as contract procedures
Essential criteria Sales experience in the IT industry Experience in tasks such as estimation, order processing, contract execution, delivery inspection, and invoicing Business-level Japanese is required (ability to create and submit reports to clients in Japanese)
Preferred Skills Sales experience at an SIer (System Integrator) Experience in sales to government agencies Knowledge of the cybersecurity field Sales experience in penetration testing, forensics, and intelligence
Ideal Candidate Profile Proactive and able to think and act independently without waiting for instructions Holds deep respect for security technologies and professionals, and treats them with care Capable of accurately documenting and sharing information in written form Dedicated to eliminating inefficiencies and committed to improving productivity Focused on understanding the essence rather than the surface, and able to engage sincerely with both internal and external stakeholders, considering the purpose and context

Employment Type	Full-time employee 3-month probationary period (no changes to working conditions during this period)
Work Location	Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Smoking Policy	Indoor smoking is permitted in designated areas.
Working Hours	Flextime system Standard working hours: 8 hours per day Core hours: 11:00 AM – 2:00 PM
Working Style	This is a hybrid position based in Tokyo. While remote work is available depending on the project and team situation, regular attendance at the Tokyo office is required.
Holidays and Leave	122 annual holidays Complete two-day weekends (Saturdays and Sundays) National holidays Year-end and New Year holidays Substitute holidays for national holidays falling on a Saturday Paid leave: 10 to 20 days per year Family-friendly leave (including marriage leave, maternity/paternity leave, prenatal checkup leave, childcare leave, child nursing leave, caregiving leave, bereavement leave, etc.)
Social Insurance	Employment Insurance Health Insurance Employees' Pension Insurance Workers' Accident Compensation Insurance
Visa Requirements	Applicants must be eligible to work in Japan. While the company does not cover visa application fees or related costs, we will provide necessary documents and support required for the visa application process.
Salary	Annual salary system
Benefits and Welfare	Defined contribution pension plan (401K) Commuting allowance (according to company policy) Housing allowance (according to company policy) Financial incentive for savings and investments (according to company policy) Support for obtaining professional certifications Discounted rates for various insurance products Congratulatory and condolence payment system Employee benefit programs: Relo Club, Benefit One (cafeteria plan) Free office drinks Many unofficial employee clubs (voluntary participation)
Job Description	【Driving Business Growth by Establishing Mechanisms to Expand Product and Service Sales and Increase Revenue】 Promote awareness of products and services Define and deliver appropriate messaging that communicates the value of products and services to target customers, motivating adoption. Plan, execute, and evaluate sales strategies and initiatives based on product/service value and market conditions Identify elements or risks that hinder sales, and develop and implement rational risk mitigation or elimination strategies in collaboration with stakeholders. Identify barriers to product/service adoption for customers, and plan and implement systems that enable efficient implementation. 【Promoting Product Development that Drives Customer Selection】 Provide ongoing communication with customers to support improved security measures through product implementation. Collect, analyze, and propose responses based on customer feedback, and relay those insights to the product development team Identify risks or factors that negatively impact product retention, find common issues, and share them with the development team for resolution. Communicate and report effectively to stakeholders through appropriate methods. 【Work in close coordination with the product development department to achieve common goals through teamwork】
Required Experience	Experience in product marketing and branding for cloud-based or packaged products Experience in planning, developing, and executing go-to-market strategies for packaged or online services Proven track record in analyzing facts, identifying bottlenecks and issues, formulating strategic initiatives, prioritizing resources, and executing action plans Business-level Japanese is required (ability to create and submit reports to clients in Japanese)
Essential criteria	Insight and analysis based on factual data Reporting skills Document writing skills Ability to translate technical or business information into appropriate messaging for prospective customers Ability to conduct market analysis and plan and execute marketing strategies Ability to demonstrate leadership in responsibilities while collaborating with other team members
Preferred Skills	Experience with product launches Experience in copywriting Market analysis expertise
Ideal Candidate Profile	Able to think and act in a data-driven manner Strong interest in security technologies and a high motivation to learn Skilled in collaboration within cross-functional team environments Possesses both strategic thinking and strong execution capabilities

Employment type Full-time employee 3-month probationary period (no changes to working conditions during this period)
Work Location Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Smoking Policy Indoor smoking is permitted in designated areas.
Working Hours Flextime system Standard working hours: 8 hours per day Core hours: 11:00 AM – 2:00 PM
Working Style This is a hybrid position based in Tokyo. While remote work is available depending on the project and team situation, regular attendance at the Tokyo office is required.
Holidays and Leave 122 annual holidays Complete two-day weekends (Saturdays and Sundays) National holidays Year-end and New Year holidays Substitute holidays for national holidays falling on a Saturday Paid leave: 10 to 20 days per year Family-friendly leave (including marriage leave, maternity/paternity leave, prenatal checkup leave, childcare leave, child nursing leave, caregiving leave, bereavement leave, etc.)
Social Insurance Employment Insurance Health Insurance Employees' Pension Insurance Workers' Accident Compensation Insurance
Visa Requirements Applicants must be eligible to work in Japan. While the company does not cover visa application fees or related costs, we will provide necessary documents and support required for the visa application process.
Salary Annual salary system
Benefits and Welfare Defined contribution pension plan (401K) Commuting allowance (according to company policy) Housing allowance (according to company policy) Financial incentive for savings and investments (according to company policy) Support for obtaining professional certifications Discounted rates for various insurance products Congratulatory and condolence payment system Employee benefit programs: Relo Club, Benefit One (cafeteria plan) Free office drinks Many unofficial employee clubs (voluntary participation)
Job Description 【Driving Business Growth by Establishing Mechanisms to Expand Product and Service Sales and Increase Revenue】 Promote awareness of products and services Define and deliver appropriate messaging that communicates the value of products and services to target customers, motivating adoption. Plan, execute, and evaluate sales strategies and initiatives based on product/service value and market conditions Identify elements or risks that hinder sales, and develop and implement rational risk mitigation or elimination strategies in collaboration with stakeholders. Identify barriers to product/service adoption for customers, and plan and implement systems that enable efficient implementation. 【Promoting Product Development that Drives Customer Selection】 Provide ongoing communication with customers to support improved security measures through product implementation. Collect, analyze, and propose responses based on customer feedback, and relay those insights to the product development team Identify risks or factors that negatively impact product retention, find common issues, and share them with the development team for resolution. Communicate and report effectively to stakeholders through appropriate methods. 【Work in close coordination with the product development department to achieve common goals through teamwork】
Required Experience Experience in product marketing and branding for cloud-based or packaged products Experience in planning, developing, and executing go-to-market strategies for packaged or online services Proven track record in analyzing facts, identifying bottlenecks and issues, formulating strategic initiatives, prioritizing resources, and executing action plans Business-level Japanese is required (ability to create and submit reports to clients in Japanese)
Essential criteria Insight and analysis based on factual data Reporting skills Document writing skills Ability to translate technical or business information into appropriate messaging for prospective customers Ability to conduct market analysis and plan and execute marketing strategies Ability to demonstrate leadership in responsibilities while collaborating with other team members
Preferred Skills Experience with product launches Experience in copywriting Market analysis expertise
Ideal Candidate Profile Able to think and act in a data-driven manner Strong interest in security technologies and a high motivation to learn Skilled in collaboration within cross-functional team environments Possesses both strategic thinking and strong execution capabilities

Employment Type	Full-time employee 3-month probationary period (no changes to working conditions during this period)
Work Location	Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Smoking Policy	Indoor smoking is permitted in designated areas.
Working Hours	Flextime system Standard working hours: 8 hours per day Core hours: 11:00 AM – 2:00 PM
Working Style	This is a hybrid position based in Tokyo. While remote work is available depending on the project and team situation, regular attendance at the Tokyo office is required.
Holidays and Leave	122 annual holidays Complete two-day weekends (Saturdays and Sundays) National holidays Year-end and New Year holidays Substitute holidays for national holidays falling on a Saturday Paid leave: 10 to 20 days per year Family-friendly leave (including marriage leave, maternity/paternity leave, prenatal checkup leave, childcare leave, child nursing leave, caregiving leave, bereavement leave, etc.)
Social Insurance	Employment Insurance Health Insurance Employees' Pension Insurance Workers' Accident Compensation Insurance
Visa Requirements	Applicants must be eligible to work in Japan. While the company does not cover visa application fees or related costs, we will provide necessary documents and support required for the visa application process.
Salary	Annual salary system
Benefits and Welfare	Defined contribution pension plan (401K) Commuting allowance (according to company policy) Housing allowance (according to company policy) Financial incentive for savings and investments (according to company policy) Support for obtaining professional certifications Discounted rates for various insurance products Congratulatory and condolence payment system Employee benefit programs: Relo Club, Benefit One (cafeteria plan) Free office drinks Many unofficial employee clubs (voluntary participation)
Job Description	Responsible for appropriate control over project risks, issues, schedules, costs, and quality to ensure successful project delivery. This includes coordination with internal and external stakeholders, as well as the evaluation and development of frameworks to support project execution. 【Project Initiation and Planning】 During the initiation and planning phases, work closely with sales and technical teams to conduct the following assessments: Resource planning Risk analysis Requirements gathering Scope definition Work Breakdown Structure (WBS) development Schedule planning Cost estimation Quality management planning Communication management planning and issue resolution planning 【Promoting Product Development that Drives Customer Selection】 Lead and manage various security-related projects by monitoring progress, risks, issues, costs, and quality. Facilitate internal project meetings and client-facing meetings to ensure alignment and smooth execution. 【Project Closure】 Prepare and deliver final deliverables as defined in the project specification. At the end of the project, conduct a retrospective and document lessons learned for future improvement. 【Project Management Framework Evaluation】 Evaluate various projects conducted by the Cyber Defense Institute and develop effective methods for operating a project management framework to ensure high quality and stable project execution.
Required Experience	At least 2 years of hands-on experience as a Project Manager (PM) or Project Management Office (PMO) in system development or related projects, or experience as a Project Management Analyst.
Essential criteria	Practical experience in handling bids and proposals for government agencies Hands-on experience in preparing proposals (RFP responses) for public sector clients Experience in supporting the creation of Request for Proposals (RFPs) Practical experience in the field of cybersecurity Experience in conducting research and preparing reports Possession of a PMP certification or IPA Project Manager qualification Business-level Japanese is required (ability to create and submit reports to clients in Japanese)
Ideal Candidate Profile	A highly self-driven individual with a strong willingness to tackle unfamiliar domains and challenging projects.

Employment type Full-time employee 3-month probationary period (no changes to working conditions during this period)
Work Location Ochanomizu First Building 5F, 2-5-1, Kanda Surugadai, Chiyoda-ku, Tokyo, Japan, 101-0062
Smoking Policy Indoor smoking is permitted in designated areas.
Working Hours Flextime system Standard working hours: 8 hours per day Core hours: 11:00 AM – 2:00 PM
Working Style This is a hybrid position based in Tokyo. While remote work is available depending on the project and team situation, regular attendance at the Tokyo office is required.
Holidays and Leave 122 annual holidays Complete two-day weekends (Saturdays and Sundays) National holidays Year-end and New Year holidays Substitute holidays for national holidays falling on a Saturday Paid leave: 10 to 20 days per year Family-friendly leave (including marriage leave, maternity/paternity leave, prenatal checkup leave, childcare leave, child nursing leave, caregiving leave, bereavement leave, etc.)
Social Insurance Employment Insurance Health Insurance Employees' Pension Insurance Workers' Accident Compensation Insurance
Visa Requirements Applicants must be eligible to work in Japan. While the company does not cover visa application fees or related costs, we will provide necessary documents and support required for the visa application process.
Salary Annual salary system
Benefits and Welfare Defined contribution pension plan (401K) Commuting allowance (according to company policy) Housing allowance (according to company policy) Financial incentive for savings and investments (according to company policy) Support for obtaining professional certifications Discounted rates for various insurance products Congratulatory and condolence payment system Employee benefit programs: Relo Club, Benefit One (cafeteria plan) Free office drinks Many unofficial employee clubs (voluntary participation)
Job Description Responsible for appropriate control over project risks, issues, schedules, costs, and quality to ensure successful project delivery. This includes coordination with internal and external stakeholders, as well as the evaluation and development of frameworks to support project execution. 【Project Initiation and Planning】 During the initiation and planning phases, work closely with sales and technical teams to conduct the following assessments: Resource planning Risk analysis Requirements gathering Scope definition Work Breakdown Structure (WBS) development Schedule planning Cost estimation Quality management planning Communication management planning and issue resolution planning 【Promoting Product Development that Drives Customer Selection】 Lead and manage various security-related projects by monitoring progress, risks, issues, costs, and quality. Facilitate internal project meetings and client-facing meetings to ensure alignment and smooth execution. 【Project Closure】 Prepare and deliver final deliverables as defined in the project specification. At the end of the project, conduct a retrospective and document lessons learned for future improvement. 【Project Management Framework Evaluation】 Evaluate various projects conducted by the Cyber Defense Institute and develop effective methods for operating a project management framework to ensure high quality and stable project execution.
Required Experience At least 2 years of hands-on experience as a Project Manager (PM) or Project Management Office (PMO) in system development or related projects, or experience as a Project Management Analyst.
Essential criteria Practical experience in handling bids and proposals for government agencies Hands-on experience in preparing proposals (RFP responses) for public sector clients Experience in supporting the creation of Request for Proposals (RFPs) Practical experience in the field of cybersecurity Experience in conducting research and preparing reports Possession of a PMP certification or IPA Project Manager qualification Business-level Japanese is required (ability to create and submit reports to clients in Japanese)
Ideal Candidate Profile A highly self-driven individual with a strong willingness to tackle unfamiliar domains and challenging projects.

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