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Senior Back-End Engineer EMEA

il y a 3 semaines

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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.
Requirements

Background and experience

  • Solid experience as a backend engineer, ideally in high-availability, low-latency, or high-throughput environments (trading, fintech, or similar is a plus).
  • Strong programming skills in Rust (or strong systems-level experience in a similar language and willingness to ramp up quickly on Rust); familiarity with TypeScript or modern JavaScript is a plus.
  • Knowledge of API design (REST, WebSocket), including authentication, authorization, rate limiting, and versioning.
  • Comfortable working with databases and data stores (SQL and/or NoSQL), including schema design and performance optimization.
  • Experience running services in cloud and containerized environments (Docker, Kubernetes, AWS/GCP, etc.) and with CI/CD tools.
  • Strong debugging and performance profiling skills, with a methodical approach to identifying and fixing complex production issues.
  • Ability to collaborate effectively with cross-functional teams and to communicate technical concepts clearly to both technical and non-technical stakeholders.
  • Organized, pragmatic, and delivery-focused, with a strong interest in continuous learning and in applying new technologies to improve our platform.
Benefits

International environment (English is the main language)

50% of transportation costs & a sustainable mobility agreement

Swile lunch voucher (€9.25 per day, 60% covered)

100% Alan Blue covered for you and your children

Wellpass contribution to gym membership

Team events and offsites


Here's what you can expect if you apply

  1. HR call (30') Get to know Flowdesk and discuss your experience.
  2. Technical Test
  3. Technical round with the Lead of the Backend team (60') & Team Fit (60') onsite
  4. Wrap Up Interview (45'), Learn about Flowdesk's culture and how we work.
  5. C-Level Interview (30')

We focus on conversations, not trick questions. These discussions will help you understand how Flowdesk operates and allow you to share your journey and what you're looking for in your next role.

We are committed to an inclusive and accessible recruitment process. If you require any reasonable adjustments or have specific needs to enable you to participate fully in the interview or assessment process (e.g., a sign language interpreter, extra time for a test, or an accessible location), please contact us to discuss how we can support you.