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Senior Fullstack Engineer (TypeScript)

Paris, Île-de-France, France🌐 Remote💼 Full-time🗓 2026-08-10 → 2026-10-02

Core

Senior Fullstack Engineer building end-to-end features for post-quantum cryptography solutions using TypeScript, Node.js, and React.

Role type

Senior Fullstack Engineer (TypeScript)

Builds

On-premise security software and APIs for finance, defense, and telecommunications clients.

Domain

DeepTech / Cybersecurity / Post-Quantum Cryptography

Deliverable

production ML models | product features

Required skills

TypeScript (strict mode, generics), Node.js, PostgreSQL, React, API design (OpenAPI), asynchronous processing, unit/integration testing, AI-assisted development

Preferred skills

Go, Hono typed RPC, secure coding practices, cryptography basics, startup experience

Technologies

TypeScript, Node.js, PostgreSQL, React, Hono, Vite, TanStack, Tailwind, shadcn/ui

Responsibilities

Own features end-to-end, design HTTP APIs, model and query PostgreSQL, build frontend interfaces, write tests, review code, propose upgrades and refactorings

Seniority

Senior, hands-on IC

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