Exciting opportunity: Backend Engineer for Core Banking Team (Digital Bank)

Money Forward is embarking on an exciting new venture in collaboration with Sumitomo Mitsui Financial Group and Sumitomo Mitsui Banking Corporation to explore the provision of BaaS (Banking as a Service) and digital banking solutions. We are seeking a talented Backend Engineer to join our core banking team, which will be at the heart of this initiative.

Who we are?

We are a startup team partnering with Sumitomo Mitsui Financial Group and Sumitomo Mitsui Banking Corporation to establish a new digital bank. Our mission is to build embedded financial products from the ground up, with a strong focus on supporting small and medium-sized businesses (SMBs).

Responsibilities and Duties

As a Software Engineer in the Core Banking Team, you will leverage Mambu, a leading cloud banking platform for neobanks and challenger banks, to build one of the most reliable and agile banking systems in the industry. Our goal is to shape the future of digital banking in Japan, making it more accessible and user-friendly than ever before.

• Acquire domain knowledge in digital banking, including deposits, loans, clearing and settlement, basic accounting, domestic exchange, and Zengin network.
• Actively engage with product owners to define requirements.
• Develop, test, and deploy code that meets non-functional quality gates such as static code analysis, software composition analysis, SAST, and DAST, while maintaining numerical accuracy.
• Design and build high-performance, scalable microservices centered around APIs.
• Pursue test automation and continuous improvement, including API testing.
• Take responsibility for the entire software development lifecycle.

Required Skills and Experience

• Approximately 5 years of hands-on experience with Java or Kotlin and Spring Boot.
• Practical experience with SQL, Apache Kafka, and related technologies.
• Experience in creating and automating tests.
• Hands-on experience with relational/non-relational databases, including transaction management, query optimization, and schema design.
• Experience in microservice architecture and API design with a focus on scalability, maintainability, and supportability.
• Proven experience in development with sufficient domain knowledge (not necessarily in the financial industry).
• Understanding of CI/CD concepts and practices.
• Experience developing cloud-native applications in major cloud environments such as AWS, Azure, or GCP.
• Bachelor's or Master's degree in Computer Science or a related field, or equivalent practical experience.

Preferred Skills and Experience

• Experience working in financial institutions, particularly banks or fintech companies.
• Basic knowledge of accounting or double-entry bookkeeping.
• Knowledge of CCP and settlement mechanisms.
• Experience implementing CI/CD pipelines from development to production in the cloud.

Language Requirements

• Japanese: Business level
• English: Business level (TOEIC score of 700 or above)

Who We’re Looking For

• Ability to quickly adapt to changing priorities and situations.
• A critical thinker who questions the status quo.
• Excellent communication skills with the ability to articulate ideas clearly.
• Willingness to learn necessary domain knowledge and technologies.
• Understanding of DevOps/DevSecOps.

Technology Stack and Tools Used

• Kotlin, Spring Boot, Gradle, jOOQ, Liquibase, Kotest/JUnit, Karate/Rest Assured
• Redis, MySQL
• Docker, AWS ECS
• Apache Kafka (AWS MSK)
• Mambu cloud banking platform
• GitHub, Backstage, Amazon ECR
• GitHub Actions, ArgoCD, Sonar Cloud, Detekt, AeyeScan
• ChatGPT, Copilot, Gemni

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.