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Security Engineer

5.5M JPY - ***M JPY

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Tokyo

Full-time (permanent)

Online Interview: Yes

Remote Work from Overseas: Yes / Remote Work in Japan: No

Top-Selling Points

Rate of Foreigners

Less Than

Frequency of English Usage

Less Than

Related Skills

Cloud / Infrastructure / DevOps tools

AWS

Programming Language

Python Shell Script

Language Requirements

Required

Preferred

Job Description

■Department Mission & Overview
The company's comprehensive online payment service is one of the largest payment platforms in Japan, processing over 15 trillion yen in payments annually.
Security measures and maintenance of the applications and infrastructure that support the service infrastructure are extremely important for providing safe and secure services. They are also responsible for a wide range of tasks from application and platform security diagnostics, implementation and maintenance of security countermeasure products such as WAF, to development and operation of SIEM infrastructure.

■Job Overview
You will be responsible for system security in payment services, one of the largest payment infrastructures in Japan.

■Responsibilities
The company's payment services consist of in-house developed applications on a hybrid infrastructure of on-premise and public cloud. Through the work of security engineers involved in this service, you will gain knowledge/experience in a wide range of IT infrastructure and acquire engineering skills through work on systems that actually operate on the Internet.

・Development and management of log monitoring infrastructure (SIEM), monitoring of log analysis results, detailed investigation of detected events, planning and promotion of countermeasures
・Security diagnosis and penetration testing of applications/networks/OS
・Selection, PoC, design and implementation of security products and services such as WAF, WAAP, ASM, CSPM, CWPP, XDR, etc.

■Team Structure
A team of six members is responsible for developing SIEM infrastructure functions, tuning analysis logic, and studying and evaluating the introduction of security countermeasure products, in addition to regular work such as diagnostics and log monitoring.
The team belongs to the systems department and communicates actively (online and offline) with infrastructure engineers and application engineers through various means. Members of the team consist of “engineers who are interested in security work and have acquired expertise in security” based on their experience in application and infrastructure development.

■Recruitment Background
As the cashless and FinTech sector continues to grow, the company is constantly expanding its businesses and services to achieve its annual 25% growth target.
Since all services are built for internet-based environments, robust security measures are essential. To support business expansion and to stay ahead of evolving cyber threats, the company is looking for security engineers who can modernize and enhance security measures.

【Careers to experience / Skills to acquire】
◇Work with a sense of speed
The company promotes decision-making/planning/implementation with a sense of speed not found in large corporations. In order to maintain speed, many tasks such as system development and operation are done in-house, and we always need to think about what needs to be added or maintained in terms of security, and respond quickly. In addition, regardless of age, you will be actively selected for leading and managing teams, so you will be able to experience growth on a daily basis.

◇Extensive knowledge of system security
The company's system infrastructure consists of internally developed web applications on a hybrid environment of on-premise environment and cloud environment (AWS, Azure). You can acquire a wide range of knowledge and experience from diagnosing and analyzing logs in this environment. In addition, the log analysis platform is developed in-house using Elasticsearch, so you can also acquire knowledge of SIEM in general.

■Ideal Applicants
・Takes responsibility for strengthening internal system security and is committed to their role.
・Thinks proactively and strategically, considering the company’s direction and proposing forward-thinking improvements.
・Communicates effectively with team members and project stakeholders, demonstrating strong team collaboration skills.
・Able to articulate ideas clearly through written documentation and presentations, and logically explain concepts to stakeholders while driving initiatives independently.
・Approaches challenges and change with a positive mindset, bringing fresh and innovative solutions to problem-solving.

Required Skills and Experiences

【MUST】 Have a strong desire to apply their knowledge and experience in system security (prior security experience is not required). + Meet any of the following: Experience in web application development and operations Experience in OSS-based system and network infrastructure, with knowledge of OS and networking 【WANT】 *Meet any of the following System development and operations on AWS Experience in CSIRT or SOC, including log analysis and incident response Automation experience using scripting languages such as Shell or Python Experience working on mission-critical systems in industries like finance or credit card companies *For whom: Strong interest in Generative AI and cutting-edge IT technologies are highly encouraged to apply, as part of the company’s AI-driven innovation strategy. 【Ideal Applicants】 Passionate about designing, building, and maintaining systems that support social infrastructure Curious and proactive, with a strong challenge-driven mindset Possesses a balance of intelligence (IQ) and interpersonal skills (EQ)

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Working Condition

【Holidays & Leave】
Full two-day weekends (Saturdays & Sundays) and public holidays
Annual paid leave: 10–20 days (minimum granted after six months of employment)
Total annual holidays: 120 days

Summer vacation (5 days) / Year-end and New Year holidays (December 29 – January 3) / Annual paid leave / Special leave for bereavement and celebrations / Parental leave / Childcare leave / Caregiver leave / Maternity support leave / Spousal childbirth leave / Long-service special leave

【Welfare】
Transportation allowance / Family allowance (Spouse: ¥20,000 / Dependents: ¥5,000 per person) / Social insurance coverage (health insurance, pension, employment insurance, workers' compensation insurance)

Retirement age: 60
*Reemployment system available

Training & Education Support
・New employee training
・Basic business skills training
・External seminars
・Management training
・Level-specific training
・Security training
・Compliance training

Additional Benefits
・Childbirth & childcare support (Family support programs, shortened work hours)
・Employee recognition programs (President's Award, Division Head Award, Rookie of the Year, Long-service Awards)
・Childbirth congratulatory bonuses:
　- First child: ¥100,000
　- Second child: ¥300,000
　- Third and subsequent children: ¥500,000
・Health checkups (including full medical examinations)
・Employee stock ownership plan
・Condolence and congratulatory payments
・In-house café (offers drinks, breakfast, and lunch; "Bar Time" every Friday night and various events)
・On-site childcare facility
・In-house massage room
・Nap space for employees

RECRUITMENT PROCESS

2-3 interviews scheduled

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