Security Engineer, CQO Office, Tokyo

Overview We are strengthening our security engineering capabilities to support the rapid growth and increasing complexity of Money Forward’s products and infrastructure. As we expand our use of AI, cloud services, and modern development practices, the need for proactive, engineering-focused security measures is becoming more critical. We are looking for a Security Engineer who can work closely with development and infrastructure teams to build secure-by-design systems and processes. This role will contribute directly to enhancing the overall security posture of the organization and protecting our users’ data. Responsibilities and Duties You will be primarily responsible for designing, implementing, and operating security controls targeting our Software Development Lifecycle. Collaborating with software engineers and SREs, you will conduct security reviews of code, as well as drive the automation of security checks using scripts and tools. You will also be involved in evaluating, introducing, and operating AI development support tools (such as Claude, Cursor, and Codex) and creating mechanisms to utilize them safely. Furthermore, you will continuously contribute to incident response, vulnerability management, and the improvement of security processes and guidelines. Job Satisfaction and Experience Gained In this role, you will gain hands-on experience in modern security engineering practices within a large-scale cloud-native environment. You will have the opportunity to work with cutting-edge AI tools and contribute to building secure AI-driven development workflows. By collaborating closely with cross-functional teams, you will deepen your understanding of both application and infrastructure security. This position offers the chance to influence security strategy and standards that impact multiple products and services across the company. Expected Role You are expected to function as a hands-on security engineer who can design and implement practical security solutions rather than only providing policy-level guidance. The role requires you to proactively identify security risks in our systems and development processes, and to propose and implement effective mitigations. You will act as a bridge between security and development teams, helping engineers adopt secure practices and tooling without hindering productivity. Over time, you will help establish and promote best practices, patterns, and reusable components that raise the overall security baseline. Expected Mindset We expect someone who approaches security as an enabler of the business and development teams, not merely as a gatekeeper. You should be curious, continuously learning about emerging threats, tools, and best practices, especially in the areas of cloud and AI-assisted development. A data-driven and pragmatic mindset is important, with a focus on balancing security, usability, and speed. You should also value collaboration and clear communication, working constructively with stakeholders who may have different priorities. Required Skills and Experience Practical experience as a security engineer, infrastructure engineer, SRE, or software engineer with strong security involvement. Hands-on experience with AWS or other major cloud platforms, including design, deployment, and operation of secure environments. Ability to script or code (e.g., using Python, shell, or similar languages) to automate security checks, integrations, and tooling. Experience with security assessments such as threat modeling, vulnerability analysis, or secure code review in a development or DevOps context. Familiarity with modern development workflows (CI/CD, Infrastructure as Code, containerization) and how to embed security into these processes. Strong communication skills and the ability to collaborate with engineers and non-engineers to explain risks and propose solutions. Preferred Skills and Experience Experience designing and operating security for large-scale or highly available systems on AWS. Experience with security automation using AI tools (such as Claude, Cursor, Codex) or other modern developer-assistance platforms. Knowledge of application security, including secure coding practices, API security, and common vulnerabilities (e.g., OWASP Top 10). Experience with incident response, log analysis, and security monitoring in a cloud-native environment. Certifications or formal training in information security or cloud security are a plus, but not mandatory. Experience in AI development and/or experience in using AI tools to improve development processes. Money Forward is at a major turning point, shifting "from Cloud to AI." We are currently driving "AX (AI Transformation)"—the next step beyond DX—with the goal of providing "Digital Workers," where AI agents autonomously execute tasks. As we enter a phase of evolving into Japan's No. 1 back-office AI company by integrating AI agents into all of our products in the future, we are looking for individuals who can contribute to AI-driven development and value creation.(More information here(https://www.linkedin.com/pulse/full-transcript-money-forward-announced-ai-strategy-vision-phwoc/?trackingId=sl33ZIGRFzkBJJv7wI9qsg%3D%3D)) Language Requirements Japanese Language Requirements：No Japanese language requirement English Language Requirements：TOEIC score of 700 or above (Note: If you have other qualifications or experiences demonstrating English proficiency, such as EIKEN Pre-1, EIKEN 2nd Grade (CSE score 1950+), TOEFL iBT 60+, IELTS 5.0+, or Cambridge FCE.), feel free to discuss with us) For those without a TOEIC 700+ equivalent score, they will be asked to take a designated test during the interview process (generally after the first interview) Who We’re Looking For We are looking for someone who is genuinely interested in both security and product development, and who enjoys building secure systems rather than simply pointing out issues. You should be self-driven, able to take ownership of problems, and willing to dive into unfamiliar areas such as new AWS services or emerging AI tools. We welcome people who value teamwork, are respectful of diverse perspectives, and can communicate clearly in an international environment. If you are excited about combining security engineering with AI-assisted development in a fast-growing company, we would like to talk with you. Technology Stack Platform：AWS Tools Used Development Environment / AI-assisted Development：Claude, Cursor, Codex 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】 Security Engineer, CQO Office, Tokyo 【雇用形態】 正社員 【給与】 年収 6,408,000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 534,000 JPY / month（6,408,000 JPY / year）〜917,000 JPY / month（11,004,000 JPY / year） Each including fixed allowances of 155,489 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) ↓ 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】 ■ 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 【会社名】 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 渋谷 亮 金井 恵子 梅田 康吉 【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 丸山 嘉伸 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 【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 〒450-6213　愛知県名古屋市中村区名駅4-7-1 ミッドランドスクエア 13F 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%