Senior Backend Engineer, Communication Platform Department, PPD, Tokyo

Overview 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 cutting-edge “account aggregation” technology to gather user data, turning it into useful insights for our customers. Within the Money Forward Business Segment (MFBS), Money Forward Cloud is a component-based cloud ERP composed of multiple service groups. While these groups provide flexibility for users to choose combinations based on their needs, developing them in isolation can lead to data silos, inconsistent user experiences, and reduced development efficiency. To solve this, our Platform Product Division (PPD) builds the common foundations that unify these services and ensures their stable use across the company. Our division is responsible for developing and managing shared microservices and backend systems that power workflows and platform functionality across Money Forward Cloud. We work to standardize services, improve collaboration across products, and enhance performance and scalability. By organizing complex system logic, addressing technical debt, and documenting our knowledge, we aim to create a reliable, maintainable, and future-ready platform that delivers consistent value for both developers and end-users. We are looking for a hands-on Senior Engineer with expertise in designing and building reliable software solutions that enhance user experience and support our growth by writing and reviewing code daily. You’ll be at the center of execution – ensuring delivery, supporting engineers, and engaging with product and management to align priorities, while contributing to the development of essential infrastructure services and helping to expand our business. Main Responsibilities Design, build, and maintain high-performance, scalable backend systems and microservices through active daily coding and code reviews. Set technical direction for platform projects, translating complex business requirements and domain logic into sound, future-ready architecture. Proactively identify operational risks, reduce technical debt, and enforce high standards for software security, performance, and system reliability. Plan and execute core infrastructure initiatives to ensure long-term platform stability, development efficiency, and seamless cross-product integration. Provide technical mentorship to engineers, elevating the team’s engineering standards, troubleshooting techniques, and problem-solving capabilities. Required Skills and Experience 6+ years of experience developing and operating medium-to-large-scale web services, with strong expertise in Golang. Proven track record in designing scalable backend architectures, microservices, and robust Web APIs leveraging AWS, relational databases (SQL), and sound data modeling. Deep knowledge of backend system design and automated testing strategies to ensure long-term system scalability, performance, and reliability. Demonstrated ability to make critical technical decisions, mentor engineers, foster team growth, and champion software engineering best practices. Exceptional communication and stakeholder management skills, with a proven ability to lead cross-functional initiatives alongside product managers, designers, and leadership. Strong sense of ownership, self-direction, and resilience in fast-moving, evolving environments. Preferred Skills and Experience Experience with Kafka and event-driven or message-driven architectures to build scalable, decoupled systems. Practical knowledge of Domain-Driven Design (DDD) to model and organize complex business domains. Experience working within multicultural, multinational engineering teams across diverse backgrounds. Advanced AWS expertise, specifically focused on cloud architecture optimization and performance tuning. Familiarity with Agile and Scrum methodologies, including sprint planning, estimation, and retrospectives. Language Requirements Business level English proficiency (TOEIC score of 700 or above equivalent). Japanese proficiency is not required but nice to have. Who We're Looking For A shared belief in Money Forward’s Mission/Vision/Values/Culture. Passionate about leveraging technology to improve lives and drive impact in financial services. Strong sense of responsibility and autonomy – drives progress rather than waiting for direction. Thrives in a collaborative, diverse, and globally distributed environment. Technology Stack Languages: Go, Java Databases: MySQL, DynamoDB, Redis Infrastructure/Middleware: Terraform, Kubernetes, AWS (EKS, ECR, RDS, S3, SQS, SNS, CloudWatch, etc…), Docker, Kafka Tools Used Communication: Slack, Notion, Zoom Monitoring: Datadog, Rollbar, AWS CloudWatch Repository Management: GitHub CI/CD: Argo CD, CircleCI, GitHub Actions, AWS ECR Ticket Management: Jira Security: Dependabot, SonarQube AI-Assisted Development: Claude Code, Cursor, and other AI coding/productivity tools 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. 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】 Senior Backend Engineer, Communication Platform Department, PPD, Tokyo 【雇用形態】 正社員 【給与】 年収 7,008,000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 584,000 JPY / month（7,008,000 JPY / year）- 917,000 JPY / month（11,004,000 JPY / year） Each including fixed allowances of 170,064 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%