AI Security Engineer, CISO Office, Tokyo

About Us

At Money Forward, we are dedicated to transforming financial services using advanced technology. With over 50 services for individuals and businesses, including popular products like Money Forward ME and Money Forward Cloud, we help make managing money easier. We use “account aggregation” technology to gather user data, turning it into useful insights for our customers.

As announced in "Money Forward AI Vision 2026(https://www.linkedin.com/pulse/full-transcript-money-forward-announced-ai-strategy-vision-phwoc/?trackingId=sl33ZIGRFzkBJJv7wI9qsg%3D%3D)," we view AI utilization not as an option, but as a prerequisite for sustainable enterprise growth. Guided by executive leadership, we are accelerating an all-in AI shift across the entire company.

Rather than treating AI merely as an efficiency tool for existing tasks, we fundamentally ask, "How should this process exist in the first place?" to reconstruct products and workflows optimized for the AI era. Powered by a rich, active user base and vast datasets, we strictly practice AI-driven development engineered backward from maximum user value. Internally, we actively integrate generative AI tools into our development environments, driving radical productivity gains and rapid product iterations.

We are looking for motivated engineers who want to embrace new technologies without fear of failure in this period of global trial and error-and who are truly passionate about building high-impact AI services grounded in massive real-world data.

Overview

At Money Forward, we are driving company-wide business transformation through Generative AI (AX). This AI Security Lead position is dedicated within the AI Security Promotion Department as a practical implementation of the CISO Office’s security philosophy: "Autonomous and scalable organization of security" empowering each development team to build and operate secure services autonomously.

The AI Security Promotion Department has entered the phase of putting AI Agents into production as an enterprise-wide operational foundation. As external AI services like Claude, ChatGPT, and Cursor-along with internally built AI Agents and Skills become deeply embedded in business operations across departments, there is a critical need for a dedicated lead capable of mitigating AI-specific security risks, including privilege escalation/boundary violations by agents, prompt injection, unauthorized data transfers, and hallucination control.

In this role, belonging to the AI Security Promotion Department, you will lead application- and service-layer security governance for AI Agents, Skills, and AI-enabled products developed and deployed across the company. Moving beyond conventional IT security, your mission will be to translate the company-wide security policies established by the CISO Office into the context of AI Agents, establishing an architectural and operational foundation that enables the safe and rapid deployment of AI.

Serving as a bridge between the CISO Office, Corporate IT, and Legal, you will oversee the entire AI Agent lifecycle including design reviews, production deployment approvals, operational audits, and decommissioning. Additionally, you are expected to provide cross-functional leadership over security and operational responsibilities previously distributed across the department, encompassing vendor management for external AI tools, internal rollout and operational enablement, and the creation and maintenance of usage guidelines.

Responsibilities and Duties

AI Agent & Skill Security Governance

• Conduct security reviews across the lifecycle of internally developed and deployed AI Agents and Skills (design, production deployment, and decommissioning)
• Standardize agent permission design, including MCP connections, function calling, tool execution privileges, and data access boundaries
• Establish governance processes for the AI Agent lifecycle (standardizing design review criteria, production deployment approvals, and decommissioning protocols)
• Define agent audit logging and monitoring requirements, collaborating with Corporate IT (GIT) and the CISO Office to implement them into core infrastructure

Mitigation of AI-Specific Risks

• Design and implement countermeasures against prompt injection attacks
• Architect data leakage prevention measures
• Establish hallucination controls and output governance
• Design PII detection, masking, and filtering mechanisms
• Perform security risk assessments for third-party tool integrations

AI Governance & Security Architecture

• Develop AI Agent security standards and architectural guidelines in collaboration with the CISO Office
• Guide engineering teams in designing secure agent architectures
• Facilitate and streamline security review workflows for AI development teams
• Partner with the CISO Office, Legal, and Compliance departments

AI Enablement & Operational Support

• Provide security consultation and guidance to engineering and business divisions
• Build internal training programs and maintain security knowledge bases for AI Agents
• Evaluate and conduct risk assessments on emerging technologies and AI architectures
• Manage security evaluations and vendor management for external AI tools
• Develop and maintain company-wide AI usage guidelines
• Support the internal rollout and operational enablement of AI Agents and Skills

Required Skills and Experience

• Experience in security design and architecture for web applications or cloud services
• Hands-on professional knowledge of AI/LLM services and tools (such as ChatGPT, Claude, and Cursor)
• Technical literacy and deep understanding of AI Agents and agent architectures
• Experience conducting security reviews or architectural reviews
• Proven track record of driving cross-functional projects in collaboration with engineering and business teams
• Strong written and verbal communication skills in Japanese

Preferred Skills and Experience

• Experience conducting risk assessments for AI Agents or LLM services in production environments
• Solid technical understanding of agent integration technologies, including MCP, Function Calling, and Tool Use
• Knowledge of Zero Trust architecture, IAM, DLP (Data Loss Prevention), and audit logging
• Professional English proficiency for researching technical documentation and communicating with vendors
• Experience in AI development and/or experience in using AI tools to improve development processes.

Language Requirements

• Japanese: Business level (equivalent to JLPT N2 or above) / Strong written and verbal communication skills
• English: Business level (equivalent to TOEIC 700 or above) / Ability to lead vendor negotiations and technical research
  • If you do not have a qualification equivalent to TOEIC 700 or above, you will be required to take a company-designated test during the selection process.

Who We’re Looking For

• Strong alignment with and passion for Money Forward's Mission and Vision(https://corp.moneyforward.com/en/aboutus/mission/)
• Proactively stay ahead of evolving AI technologies and conduct hands-on technical validation
• Mindset that approaches security not as a blocker, but as an enabler for safe and rapid innovation
• Proven ability to translate high-level, abstract risks into practical, actionable operational workflows
• Collaborative review style focused on direct dialogue and partnership with engineering and business teams
• High adaptability and intellectual curiosity to continuously learn and embrace emerging AI architectures

Work Environment

At Money Forward, we provide an environment where we can create world-class services together, and we are looking forward to welcoming you.

• Provided PC Specs: We provide PCs equipped with the latest CPUs (MacOS or Windows). Custom-made PCs tailored to business requirements and replacements with the latest OS are also possible.
• Systems to Enhance the Development Environment: Peripheral devices necessary for work (such as displays, mice, keyboards) can be purchased as office supplies. Generally, you can choose from standard products (catalog), and if conditions are met, you can apply for non-standard products as well. (*Excluding certain group companies)
• Money Forward Library: We have a library system where you can freely borrow books, ranging from technical books to management books. Desired books can be purchased at the company's expense.
• Referral Driven: We cover the cost of recruitment meals. There is a referral reward system.
• Conference Participation Support: The company partially covers participation in domestic and international conferences, such as RubyKaigi and Google I/O.

職種 / 募集ポジション

AI Security Engineer, CISO Office, Tokyo

雇用形態

正社員

給与

年収 6,900,000円 〜 11,004,000円

Monthly salary system

※Includes fixed allowances for up to 45 hours of legal overtime, legal holiday work, and 40 hours of late-night work.

勤務地

108-0023 21F Tamachi Station Tower S, msb Tamachi, 3-1-21 Shibaura, Minato-ku, Tokyo

Salary System

Min 575,000 JPY / month（6,900,000 JPY / year）〜917,000 JPY / month（11,004,000 JPY / year）

Each including fixed allowances of 167,414 JPY〜266,988 JPY / month.

Bonus

A「High Performance Bonus」may be paid to employees who receive high evaluations based on semi-annual evaluations in addition to their salary.

※Please note that the remuneration of the High Performance Bonus is subject to change according to the company's performance.

Probation Period

3 months from join date

Working Hour System

Discretionary Labor System for Professional Work

※Conditions apply; subject to change to Flextime System.

Working Hours

9:30 - 18:30 (60 min break) are the basic working hours. However, employees are able to choose their working hours at their own discretion.

※There is potential for overtime work outside the determined hours.

Work Style Policy

Hybrid work style

・As a standard practice, employees are required to work at the office a minimum of 2 days per week. Employees are encouraged to spend 3 or more days in the office. (This policy may be subject to change based on the company and job circumstances)

・The specific "team office days" may vary depending on the assigned team.

Holidays/Vacations

• Saturdays / Sundays / Japanese national holidays
• Paid holidays
• Summer holidays (3 days)
• Winter holidays (2 days)
• Year-end and New Year’s holidays (Dec 31st～Jan 3rd)

Benefits

• Various social insurances (employee pension, health insurance, employment insurance, industrial accident compensation insurance)
• Neighborhood housing allowance and neighborhood moving allowance
• Salary-based rent deduction benefit
• Health check and gynecological checkup
• Influenza vaccine
• Book purchases support
• Defined-contribution corporate pension
• Employee stock ownership plan
• Preferential treatment when using the following services（limited to businesses under contract with Money Forward）

- Rental agency

- Housekeeping services

- Babysitting

- Online English conversation school

Selection Process１

Casual interview/Document Screening

↓

First interview (Depending on the position, there may be a technical assignment before the interview.)

↓

Several interviews (The number of interviews depends on the position. We will request you to take an aptitude assessment.)

↓

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

↓

Job offer/Offer meeting

※The process may be subject to change depending on the case.

Selection Process２

• About the Aptitude Test

It is a simple web-based survey taking around 20 minutes to complete.

• What are reference checks?

Money Forward may ask for your cooperation with reference checks using a reference check service tool. We believe that mutual understanding is limited to the selection process alone. Therefore, we would like to gather information about you from your supervisor and colleagues at your current or former company to ensure a more reliable match and facilitate your early success after joining our company.

※We do not make employment decisions based solely on the contents of reference checks.

※The fact that you are in the selection process with us will not be disclosed to referees.

Notes

・Range of change in job description: Work as determined by the company

・Range of change in work location: Work location as determined by the company

Reference Information

https://recruit.moneyforward.com/#introduction

会社情報

株式会社マネーフォワード

代表者

代表取締役社長グループCEO 辻 庸介

創業

2012年5月

取締役

金坂 直哉

中出 匠哉

竹田 正信

石原 千亜希

社外取締役

安武 弘晃

宮澤 弦

Ryu Kawano Suliawan

菊間 千乃

芦田 健

上田 梨々子

監査役

畠山 優実

田中 克幸

西山 茂

グループCxO・VPox

上利 陽太郎

瀧 俊雄

山田 一也

坂 裕和

松岡 俊

伊藤 セルジオ 大輔

関田 雅和

松久 正幸

野村 一仁

長尾 祐美子

金井 恵子

梅田 康吉

丸山 嘉伸

執行役員

田平 公伸

本川 大輔

冨山 直道

永井 博

駒口 哲也

廣原 亜樹

島村 誠一郎

永井 七奈

木村 慎治

吉本 憲文

工藤 裕之

島内 広史

小山 幸宏

渡辺 恵伍

松村 道夫

岩崎 大

渋谷 亮

オフィス

本社オフィス

〒108-0023 東京都港区芝浦3-1-21 msb Tamachi 田町ステーションタワーS 21F

北海道支社

〒060-0061 北海道札幌市中央区南一条西4-5-1 札幌大手町ビル3階

東北支社

〒980-0021 宮城県仙台市青葉区中央2-2-10 仙都会館 5F

東海支社、名古屋開発拠点

〒450-6050 愛知県名古屋市中村区名駅1-1-4 JRセントラルタワーズ 50F

京都支社、京都開発拠点

〒604-8004 京都府京都市中京区三条通河原町東入中島町78番地 明治屋京都ビル 4階

関西支社、大阪開発拠点

〒541-0042 大阪府大阪市中央区今橋 2-5-8 トレードピア淀屋橋 9階

広島支社

〒730-0015 広島市中区橋本町9-7 ビル博丈5F

九州・沖縄支社、福岡開発拠点

〒810-0041 福岡県福岡市中央区大名2丁目6-50 福岡大名ガーデンシティ 16F

社内コミュニケーション活性化の取り組み

• 全社週次/月次朝会/半期総会
• 代表との意見交換会（CEOセッション）
• 全社懇親会（MF Happy Hour）
• 他部門社員との交流会（シャッフルランチ・ディナー）
• 上長との定期1on1（ツキイチ面談）
• 社内公募制度（MFチャレンジシステム）
• 社員満足度調査（MFグループサーベイ）

※一部正社員のみ

労働条件

屋内原則禁煙（喫煙室あり）等

中途採用比率

2021年11月末 93.8％

2022年11月末 90.0%

2023年11月末 76.6％

2024年11月末 88.7%