This position is closed and is no longer accepting applications.

Senior Offensive Security Specialist, CISO Office

Money Forward Minato-ku, Tokyo May 30 2025
  • 💴 ¥8M ~ ¥15M annually
  • 🏡
    Partially remote
  • 🌏
    Apply from abroad
    Relocate to Japan
  • 💬
    No Japanese required
    Business English
  • 🧪
    Senior level
    Unspecified years of experience

About Money Forward

Money Forward Minato-ku, Tokyo

Money Forward is a fintech startup delivering tools to visualize and improve both individuals'​ and companies'​ financial health.

Key benefits

  • Small but diverse team
  • Great support for OSS
  • Relocation support

About the position

The CISO Office works with the business divisions that develop and provide Money Forward’s services to maintain and improve the security of our products. This includes controlling major clouds such as AWS and GCP, visualisation, and the design, implementation, and operation of common security functions such as WAF. The CISO Office is also responsible for strengthening the security of the company’s information systems.

We are looking for the Senior Offensive Security Specialist to work with us so that more users can use our services with peace of mind.

Responsibilities

In this position, you will leverage your expertise in penetration testing and red teaming to enhance the security posture of Money Forward. Collaborating closely with the security specialists in the CISO Office, your primary responsibilities will include:

  • Conducting comprehensive penetration tests and red team exercises to identify vulnerabilities and assess the security of our systems and applications
  • Automating red team and penetration testing processes to improve efficiency and coverage, utilizing tools and scripts to streamline repetitive tasks
  • Designing and delivering training programs to educate and upskill internal teams on red teaming methodologies and best practices
  • Supporting or leading vulnerability assessments and penetration testing initiatives.
  • Gathering and analyzing vulnerability information, including Open Source Intelligence (OSINT)

Requirements

Technical skills

  • Strong understanding of Computer Science, including networks, operating systems, data structures, cryptography, etc.
  • Proven experience in penetration testing, red teaming, or related offensive security roles
  • Basic scripting and exploit writing skills

Soft skills

  • Ownership, teamwork skills, and communication skills
  • Self-learning skills

Nice to haves

While not specifically required, tell us if you have any of the following.

  • Qualifications such as OSCP, OSEP, GCIH, etc.
  • Deep understanding of cloud native architectures including AWS, Google Cloud, Azure
  • Experience in forensics, malware analysis, and incident response is a plus.
  • Experience of security-related work in the financial and Fintech industries, such as FISC
  • Experience of CTF
  • Experience of bug hunting and obtaining CVE
  • Experience in AI development and/or experience in using AI tools to improve development processes. Money Forward recently announced our AI Strategy roadmap which focuses on improving AI-driven operational efficiencies, as well as integrating AI agents into our products to deliver better value to our users.

Compensation

¥8,000,000 ~ ¥15,000,000 annually.

Hiring Process

  1. 1

    CV Screening

  2. 2

    First interview

    Depending on the position, there may be a technical assignment before the interview

  3. 3

    Several interviews

    The number of interviews depends on the position.

  4. 4

    Final interview

    We may ask for a reference check before or after the interview.

Meet Money Forward's Developers

Kostas Mavrikis left the Netherlands to join Money Forward in October 2023. As the first non-Japanese speaker in the Fukuoka office, he's been taking the initiative on Money Forward's Englishnization program, as well as introducing Kotlin, Scrumban, and European-style coffee meetings to his team.

Read their story...

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