Engineer

Backend Engineer

June 24, 2025
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Overview:

We are looking for a skilled Backend Engineer to develop and maintain the server-side logic for our innovative AI SaaS product. You will be responsible for building robust, scalable, and high-performance systems that power next-generation AI tools for medical staff.

Responsibilities:

  • Design, develop, and deploy backend services using Python frameworks like Django and FastAPI.
  • Manage and optimize databases (Postgres on AWS RDS Aurora).
  • Develop serverless functions using AWS Lambda and Node.js.
  • Integrate with third-party services, including cloud platforms like AWS and Azure AI services.
  • Collaborate with frontend developers and other stakeholders to deliver end-to-end features.

Required Skills:

  • Development experience with Django, FastAPI, AWS RDS Aurora, Postgres, AWS Lambda, Node.js, and SQL.

Desirable Skills:

  • Experience with cloud services, particularly AWS and Azure AI services.
  • Development experience in frontend and/or infrastructure.
  • Experience with other backend framework languages.

Salary & Bonus

  • Part-time / Intern: JPY 1,500 - 3,500 per hour
  • Full-time: JPY 300,000 - 800,000 per month

Benefits

  • Work-related expenses fully reimbursed.
  • Social Insurance: Determined by employment type and location.

Employment Type

  • Full-time, Part-time, Intern

Probation Period

TBD

Work Style

  • Working Hours: Flexible, based on contract.
  • Holidays: Weekends (Saturday, Sunday) and national holidays.

Application Requirements

Required:

  • Experience with Django, FastAPI, AWS RDS Aurora, Postgres, AWS Lambda, Node.js, SQL.

Welcomed Skills:

  • Experience with AWS and Azure AI services.
  • Frontend and infrastructure development experience.
  • Experience in other backend languages/frameworks.

Ideal Candidate:

  • A self-motivated individual who thrives in a remote environment.
  • Strong problem-solving skills and the ability to design complex systems.
  • Excellent communication skills for collaborating with a global team.