This position is closed and is no longer accepting applications.

Principal Backend Engineer (Kotlin), Money Forward Cloud (Consolidated Accounting), Osaka

Money Forward Minato-ku, Tokyo February 23 2026
  • 💴 ¥7M ~ ¥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

We are seeking a Principal Backend Engineer who will be responsible for providing technical guidance and swiftly realizing customer value by leading team members in the team developing the service “Money Forward Cloud Consolidated Accounting,” which aims to promote and support group management to achieve significant growth that cannot be accomplished by a single company.

Technical Stack

  • Server-side: Kotlin
  • Frontend: TypeScript, React, Next.js
  • Database: MySQL(Aurora)
  • Infrastructure and Middleware: AWS (ALB, EC2, RDS, S3, SQS, ElastiCache, EKS…), SendGrid, GCP (BigQuery, …), Docker, Redis, Kafka, Maxwell, Elasticsearch, Fluentd, Envoy

Responsibilities

  • Promote knowledge sharing within the team to enhance quality and encourage autonomy at the team level.
  • Mentor and develop team members, helping them to grow their skills and expertise.
  • Lead the design and implementation of complex features, providing advice and guidance to ensure successful execution.
  • Lead architectural design that enables the swift and high-quality delivery of features based on business requirements.
  • Drive technology-driven improvements to significantly enhance development efficiency and Time to Market.
  • Implement best practices and tools to streamline development processes and reduce bottlenecks.
  • Cultivate an engaging and supportive developer experience, creating a positive and productive work environment.
  • Foster a culture of innovation, collaboration, and continuous improvement within the development team.

Requirements

  • Experience in developing and operating web applications using Kotlin or Java
  • Ability to design code that is innovative, maintainable, scalable, and quickly delivers customer value
  • Deep technical knowledge that enables the creation and adoption of coding standards and policies
  • Experience in coaching and mentoring team members on code design best practices
  • Experience in developing REST APIs and GraphQL APIs
  • Experience in development using relational databases RDB
  • Experience in team development using tools such as GitHub, CI, and Lint.

Nice to haves

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

  • Experience in Agile/Scrum development across multiple teams, ensuring effective collaboration and delivery
  • Experience as an AI Software Engineer
  • Experience as a Software Engineer in Test
  • Knowledge and understanding of SRE principles and practices
  • Proficiency in building infrastructure using Docker, AWS, Kubernetes, and Terraform
  • Experience in performance tuning for large-scale data, ensuring optimal performance and efficiency

Compensation

¥7,000,000 ~ ¥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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