OTC Software Engineer UK (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 look for 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.

We are seeking Software Engineer with extensive experience in OTC trading to join us. You will design, develop, and maintain high-performance trading systems that power our OTC operations.

Requirements:
Key Responsibilities

• Develop and optimize trading infrastructure for OTC execution and settlement.
• Collaborate with traders, quants, and cross-functional teams to implement trading strategies and workflows.
• Build scalable APIs and microservices for trade lifecycle management, pricing, and risk systems.
• Design resilient solutions for clearing, settlement, and regulatory compliance Required.

Qualifications

• Extensive hands-on experience building OTC trading systems or platforms.
• 5+ years of software engineering experience with strong expertise in low-level programming language.
• Deep understanding of financial markets, trade lifecycle, and OTC market structures
• Experience programming in C/C++/Rust

Nice to Have

• Rust programming experience highly valued.
• Knowledge of cryptocurrency or digital asset markets.
• Familiarity with trading protocols (FIX, WebSocket) and market data systems.
• Experience with high-frequency or algorithmic trading.

Benefits:
• International environment (English is the main language)
• Pension
• 100% health coverage
• Team events and offsites

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.

Recruitment process

Are you interested in this job but feel you haven't ticked all the boxes? Don't hesitate to apply and tell us in the cover letter section why we should meet!

Here's what you can expect if you apply

• HR interview (30')
• Technical Discussion with hiring manager (30')
• Technical Test
• Chat with the Head of Engineering (45')
• Chat with CTO (30')

On the agenda, discussions rather than trick questions! These moments of exchange will allow you to understand how Flowdesk works and its values. But they are also (and above all) an opportunity for you to present your career path and your expectations for your next job!

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.