Full Stack Developer (Generative AI Application Development)

  • Tokyo
  • Partial Remote
  • Full-time
  • July 19, 2024
6,400,000 - 9,500,000 JPY /yr
Apply from Anywhere 👍
Relocation to Japan 👍
(Overseas visa sponsorship supported)
Language Requirements
Japanese: Not Required 👍
English: Business Level
Minimum Experience
Mid-level or above

About the position

As a full stack developer, you will work on the development of a brand new generative AI application which enables the automation of back-office workflows. 

As the development team is in the start-up phase, priority is given to delivering value to users as quickly as possible, even while overlapping some of each other's roles, rather than clarifying the division of roles between members. We welcome people who can work autonomously without getting too caught up in their role or job title, and who can think about what is necessary at any given time.



  • Design, develop, test, deploy, maintain and improve the service
  • Active participation in code reviews and pair-programming to improve the code quality
  • Monitor the production environment and recover the system if some troubles happen 
  • Participate in the discussions of product specifications
  • Contribute to the improvement of development process, communication, team building, etc


Technology Stack

  • Backend: Python (Fast API)
  • Frontend: React.js, TypeScript
  • Middleware: MongoDB
  • External Library: LangChain, Slack API, Microsoft Teams API
  • Infrastructure: AWS, Kubernetes, Terraform
  • Development environment: Docker
  • CI/CD: Circle CI, GitHub Action, Argo CD
  • Monitoring: Datadog, Rollbar
  • Task management: Jira
  • Communication: Slack, Zoom, Miro, Figma



Must to have

  • Bachelor's degree in Computer Science, Engineering, or a related technical field.
  • 3+ years web application development experience using Python
  • Proficiency of test driven development
  • Experience of container based development
  • Experience of designing and deploying cloud infrastructure
  • Professional working proficiency in English (IELTS 7+, TOEFL iBT 100+, TOEIC 870+)
  • Excellent technical writing skill
  • Experience of team software development
  • Be able to relocate to Japan and commute to the office in Tokyo at least twice a week


Nice to have

  • Understanding of back office work like accounting, human resources, etc
  • Experience of modern frontend development
  • Experience of micro service development
  • Understanding of DevOps practice
  • Experience of using LLM application development tools like LangChain, AutoGPT, Llama, etc



  • 6.4-9.5 million JPY annually



  • Location: Tokyo, Japan.
  • Remote work: Hybrid/Partial remote with one day of in-office work per week.


Working hours

  • Flexible Working Hours (No core time)



  • Two days off per week (Saturday and Sunday)
  • Japanese national holidays (16 national holidays in 2023)
  • Paid holidays: 10 days (first year) *Number of paid holidays increases (+1 day) each year up to 20 days per year.
  • Summer vacation days: 3 days
  • Winter vacation days: 2 days



  • Medical insurance
  • Employee stock ownership plan
  • Full transportation coverage
  • The latest computer (Unlimited upgrade or purchase when needed for development is available upon approval.)
  • Seminar participation support
  • Book purchases
  • Copyright of OSS belongs to individuals


Relocation Support for Overseas Candidates

  • Communication Support
    • Japanese language study support
      • Online beginner courses
      • Terakoya (Japanese study buddy program)
    • In-house Translation & Interpretation team
    • Active English-speaking employee community within the company
    • Culture and Language exchange events
  • Relocation Support
    • Working and dependent visa sponsorship and application assistance
    • Flight tickets (for employee and their dependent family)
    • Airport pick-up
    • Temporary fully furnished apartment
      • 1st month: free
      • 2nd and 3rd month - corporate discount available upon request
    • Relocation bonus for initial life setup
    • Settling-in support after arrival in Japan
      • City office and bank account opening tour
      • Information sharing about mobile plans, credit card applications, etc..

Money Forward, founded in 2012, strives to deliver exceptional value to users in various business domains. As a leading FinTech company, we offer over 40 services, ranging from personal finance management to B2B SaaS products.

We have been growing rapidly, and we are expanding our global hiring to help further expand the company. That means that we are open to hiring those with limited or no Japanese language proficiency.

Money Forward is one of Japan's hottest FinTech companies and it is now a great opportunity to be a part of one of our continued growths!

View Money Forward's company page

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