Senior Software Engineer - Trading Systems | Rust

Role: Senior Software Engineer – Trading Systems Location: London - hybrid (meet once a month) Salary: £150,000 to £200,000 Guaranteed and Performance Bonus' Key Skills: Rust, Trading Systems/Exchanges, Crypto/Blockchain An innovative fintech start-up, backed by significant private investment, is looking for an exceptional Senior Software Engineer to build its next-generation trading platform from scratch. Combining traditional finance expertise with blockchain innovation, the company offers a unique opportunity to shape critical financial infrastructure at the earliest stage. You will need hands-on experience in trading system engineering, ideally gained within crypto/blockchain start-ups, investment banks, hedge funds, market makers, or proprietary trading firms. Key Responsibilities: Design, build, and optimise low-latency, high-throughput backend trading systems. Develop and maintain trading infrastructure such as market data feed handlers, algorithmic execution engines, backtesting frameworks, and risk management systems. Deliver robust trading connectivity, order execution, and position management solutions. Collaborate with financial and blockchain product teams to ensure seamless platform integration. Essential Expertise: Proven background in building trading systems for major financial institutions or trading firms. Hands-on development of core trading infrastructure, including market connectivity and execution frameworks. Strong programming skills , writing clean, modular, and efficient code, and working with modern engineering practices (TDD, CI/CD, SOLID principles), ideally with Rust . Deep knowledge of financial markets, including order routing, execution optimisation, and multi-venue trade reconciliation. Experience with crypto markets , particularly derivatives such as perpetual swaps, futures, and other digital assets. High-performance system design , focused on ultra-low-latency execution and high-throughput architectures. Excellent problem-solving ability , capable of designing scalable, high-quality technical solutions. Advocate for automated testing , with real-world experience in unit, integration, regression, and performance testing. Offer: Salary between £150,000–£200,000 guaranteed and performance bonus'. Hybrid working with access to a Central London office (1–4 days per month) - the core team are London based and are open to meeting more regularly. High-impact role building mission-critical systems at an early-stage, well-funded start-up.