English summary for screening — check the original posting before applying.
Nekkos is a system development company specializing in LINE API, AI system development, and digital marketing. They are looking for a Full-Stack Engineer to handle backend development and infrastructure, focusing on taking over existing projects from external partners and strengthening their in-house development capabilities.
Must-haves
- 3+ years of experience in web system design and development
- Experience with AI-driven development using tools like Claude Code
- Experience with system design and development using RDB
- Experience developing and operating in cloud environments (AWS or Google Cloud)
- Experience in team development and code reviews using Git/GitHub
Nice-to-haves
- Experience in upstream processes like requirements definition and basic design
- Experience in architecture design, API design, and database design
- Experience in RDB performance tuning
- Experience with Docker, CI/CD, and Infrastructure as Code
- Development experience with LINE Messaging API, LIFF, or LINE Login
- Experience with technical blogs, presentations, or OSS activities
Tech stack
TypeScriptNode.jsReactNext.jsAWSGoogle CloudLLM APIOpenAI Response APIGeminiClaude Code
Work style
Hybrid work: 3 days in office (Taito City, Tokyo) and 2 days remote. Flexible working hours with core time from 11:00 to 15:00.
Other notes
Annual salary up to 14 million JPY. Full-time employee position with no fixed term.