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30

Senior Software Engineer | TypeScript & AI

Tracklab · Paris, Ile-de-France, France

Full-time Hybrid Senior via WTTJ: backend engineer Paris

Description

Most important qualities for this role at Tracklab

  • You ship. You have a track record of features that went to production and stayed there

  • You are pragmatic about quality: you know the difference between the corner that can be cut and the one that will cost six months

  • You challenge the spec. When something does not make sense, you say so before you build it, not after

  • You are comfortable in a codebase you did not write, in a domain you do not know yet

  • You use AI as a real multiplier and you read every line it produces

  • Entrepreneurial mindset: you thrive in a fast-moving environment where the answer is rarely written down anywhere

Skills & experience

Must haves

  • 3+ years of professional software engineering, including at least one company with a serious engineering culture

  • Strong TypeScript, on both sides of the stack

  • Solid relational data modeling and SQL. You can design a schema, not just query one

  • You already code with AI daily (Claude Code, Cursor or equivalent) and you can explain where it fails

  • Clear written communication in French and English

  • You have owned features end to end, including what happened after the release

Nice to haves

  • NestJS and Next.js in production

  • GCP, Terraform, CI/CD pipelines

  • Python

  • B2B SaaS with deep data models: PLM, PIM, ERP, MES, QMS or similar

  • Experience in agri-food, cosmetics, chemicals or another regulated industry

Our stack

TypeScript everywhere. NestJS on the backend, React / Next.js on the frontend, PostgreSQL (Cloud SQL) and Redis. Infrastructure on GCP, managed with Terraform. Python for our AI and data work. GitHub for everything.

Why 30?

Each component's contribution, and the phrases that triggered it.

Location fit +25.0

paris · ile-de-france

Seniority fit +20.0

senior

Engagement type +4.0
Compensation fit +3.0
Recency +0.54

posted 38 days ago

Red flags 0.0
Rails stack fit 0.0