Engineering · Full-time · Roppongi Hills Mori Tower, Minato-ku, Tokyo
Senior Backend Engineer
Build the reliable backbone behind the product and the agent — on your own call.
- Go
- TypeScript
- AWS
- PostgreSQL
- API
§ 01
What you'll do
- Design, build, and operate backends / APIs
- Data modeling and infrastructure design (AWS)
- Designing the agent execution platform and external integrations
- Ensuring reliability, monitoring, and security
§ 02
Must-haves
- 3+ years of server-side development
- Hands-on Go or TypeScript, plus cloud operations experience
- Experience leading schema / API design
§ 03
Nice to have
- Startup / 0→1 experience
- Experience with data platforms and event-driven architecture
§ 04
Our strengths
- Industry focus — all-in on shipbuilding, compounding deep domain knowledge
- AI-agent native — built for real-world adoption, not PoC theater
- Speed & flexibility — a startup's agility and execution
- Social impact — solving skill succession × shorter build times
§ 05
Who we're looking for
- Thinks from first principles and grasps problems at their essence
- Frames their own questions and moves forward amid uncertainty
- Can commit long-term to maritime as social infrastructure
§ 06
Terms & employment
Full-time (3-month probation). Full flextime / remote OK. Location: Roppongi Hills Mori Tower, Minato-ku, Tokyo (relocating near Ōmori in 2027). Stock options available.
§ 07
Why this role
Because the team is small, you build the architectural core on your own judgment.
Let's just talk first.
We start with a casual chat, not a formal screening. Reach out if this role interests you.
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