Fullstack Typescript Developer - Claude Code (Full Remote)

Overview

Humanis-Partners, a 360° HR consulting firm specializing in recruitment, training, and organizational transformation support, is looking for a Fullstack Typescript Developer for their client, a growing technology company focused on payment solutions, to work fully remote.

In Short

• Join an experienced technical team developing critical solutions with strong security, reliability, and regulatory compliance (PCI-DSS).
• Develop and maintain backend APIs and modern frontend interfaces (Next.js App Router).
• Contribute to critical modules like fee calculation engines and ledger systems.
• Design and optimize high-performance data models with Prisma / ZenStack and PostgreSQL.
• Develop merchant and admin dashboards (React).
• Participate in architectural decisions in a high-security environment (PCI-DSS).
• Write robust tests and participate in code reviews.
• Collaborate closely with the technical team on platform evolution.

Requirements

• Solid professional experience in TypeScript (minimum 3 years) and mastery of AI development tools (Claude CODE).
• Mastery of React and modern frontend ecosystem (hooks, state management, SSR).
• Experience with a Node.js ORM (ideally Prisma or ZenStack).
• Strong knowledge of PostgreSQL (data modeling, queries, performance optimization).
• Ability to thrive in a full remote environment.
• Fluent in French and good technical English.

Benefits

• International group in strong growth in the fintech sector.
• High-value technical projects.
• Modern environment based on TypeScript full-stack.
• 100% remote organization.
• Strong and collaborative technical culture.
• Exposure to critical and structuring issues.