Senior Software Engineer (Backend): Ledger - Wallets

About this role

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer (Backend): Ledger – Wallets based in France.

We are looking for an experienced Senior Backend Software Engineer to help design and evolve critical financial infrastructure supporting fiat and cryptocurrency wallet operations.
In this role, you will take ownership of the Wallets subdomain, building scalable services that manage the complete lifecycle of customer wallets across multiple products and customer types.
You will work on foundational systems where reliability, security, compliance, and data accuracy are essential.
Collaborating with autonomous engineering squads and cross-functional teams, you will contribute to distributed architectures and complex integrations across financial domains.
You will have significant technical ownership, influencing architectural decisions and delivering solutions that support growing transaction volumes and new financial capabilities.
Working in a collaborative international engineering environment, you will combine hands-on development with production ownership and continuous technical improvement.
This is an opportunity to contribute to the evolution of global financial services through innovative stablecoin and payment infrastructure.

### Accountabilities

As a Senior Backend Software Engineer, you will design, develop, and maintain critical wallet infrastructure while ensuring scalability, reliability, and seamless integration across financial systems. Your responsibilities will include:

• Wallet lifecycle management: Design, implement, and evolve services responsible for the complete wallet lifecycle, including creation, activation, blocking, unblocking, suspension, and termination across fiat and cryptocurrency wallets.
• Cross-domain integration: Collaborate with engineering teams across Digital Assets, Fiat, Onboarding, Billing, and other business ...