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Développeur Fullstack / Backend (H/F)

Paris, Ile-de-France🌐 Remote💼 Full-time🗓 2026-05-19 → 2026-08-08

Core

Backend/fullstack developer building multi-currency banking features, payment integrations, and carbon footprint tracking for a fintech platform.

Role type

Senior IC backend/fullstack engineer

Builds

Multi-currency account management, currency exchange operations, and carbon footprint tracking features

Domain

Fintech / Banking / Payments

Deliverable

production ML models | product features

Required skills

NestJS, React, API integration (partner/open APIs), webhook development, real-time data exchange, Auth0, Azure, GitLab, technical architecture, code review

Preferred skills

Fintech domain knowledge (IBAN, SWIFT, PSD2, KYC, AML), AI/automation interest

Technologies

NestJS, React, Auth0, Azure, GitLab

Responsibilities

Integrate partner APIs (KYC, cards, financial services), develop and maintain webhooks, manage real-time exchanges with external partners, develop backend endpoints in NestJS, consolidate post-refactor architecture, document APIs, perform frontend integration in React, conduct integration tests, collaborate with CTO and product team, implement quality standards (tests, code review), ensure security and compliance

Seniority

Senior, hands-on IC

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