Senior Back-End Engineer EMEA (F/M/D)

Flowdesk's mission is to build a global financial institution for digital assets, one designed from the ground up for market integrity and efficiency.

To achieve this in a rapidly evolving market, we apply a disciplined, first-principles approach to everything we do. This approach is embedded in our core services, from institutional liquidity provision, trading solutions, OTC execution to our comprehensive treasury management offerings. This is how we cut through the noise and build robust and scalable systems across all our business lines.

We seek individuals who are driven by this systematic approach. Joining Flowdesk means you will be a key contributor in building and scaling a more transparent and efficient financial markets infrastructure.

As a Senior Backend Engineer at Flowdesk, you will help design and build the core services powering our global trading platform.
Reporting to Flowdesk’s Lead of Backend Engineering and working closely with the Infrastructure, Trading, and Data teams, you will be a key contributor to the scalability, performance, and reliability of our backend systems.

Your mission together with the other members of the backend team will be to

• Design, develop, and maintain microservices primarily written in Rust, with some services and tooling in TypeScript.
• Contribute to system architecture and design discussions, helping shape the evolution of our backend services and trading platform.
• Implement scalable, resilient backend systems supporting OTC and API trading workflows.
• Build and optimize high-performance trading services, with a focus on low latency, high throughput, and fault tolerance.
• Develop and maintain REST and WebSocket APIs, ensuring proper versioning, robust documentation, and smooth integration for internal and external clients.
• Write clean, maintainable, and testable code, following industry best practices, code review standards, and internal guidelines.
• Monitor, investigate, and resolve production issues, including performance bottlenecks, service failures, and client-impacting anomalies, in close collaboration with SRE/Infra.
• Deploy, scale, and monitor microservices in cloud and containerized environments, working with tooling such as Kubernetes and modern CI/CD pipelines.