[Annual Salary Up to 11 Million JPY / Remote & Flex / Tech Lead] Lead Client Negotiations x TypeScript/Next.js DevelopmentEnglish summary from Japanese

株式会社ネッコス

✓ Detailed

Salary

5.96 million JPY - 11.38 million JPY

Location

Tokyo

Job Type

Full-time

Work Style

10:00～null

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Role summaryEnglish summary from Japanese

English summary for screening — check the original posting before applying.

Lead client negotiations and drive development projects from specification alignment to completion. You will be responsible for client communication, technical design, implementation, testing, and team direction to ensure timely and high-quality delivery.

Must-haves

Experience in client negotiations and specification alignment
Proficiency in self-directed design, implementation, and testing
Experience managing development processes and directing team members
Experience with modern front-end technologies like TypeScript, React, Next.js
Experience with back-end development including API and DB design

Nice-to-haves

Experience developing LINE Mini Apps and LINE API
Experience with AWS (including container services like Fargate, ECS)
Experience with Google Cloud
Experience with AI systems, LLM APIs (OpenAI, Gemini, Claude Code)
Experience with XR technologies (Metaverse, AR)

Tech stack

TypeScript

About the Company

株式会社ネッコス

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Posted7/28/2026

Updated2026/07/28

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