Senior C++ Engineer

In this role you will help build and optimize a global derivatives algorithmic trading platform in London. You will work with technologists, quants, and traders to deliver high-performance, reliable trading software spanning venue connectivity to trading engines. You’ll improve stability, monitoring, and deployment readiness while tackling production issues in a fast-paced, collaborative environment. The opportunity centers on shaping end-to-end trading infrastructure and performance, applying your C++ expertise to real-time trading challenges.

• ESPP
• Life assurance
• Income protection
• Private medical insurance
• Pension plan
• Season ticket loans

• Develop software that communicates with exchanges via APIs (FIX, WebSocket, HTTP)
• Maintain and extend testing suites to ensure quality
• Optimize exchange communication through kernel bypass and connection handling
• Research exchange behavior to align platform operations
• Implement solutions using exchange SDKs in C++, Rust, Python, and TypeScript
• Implement trading algorithms based on traders and quants’ requirements
• Translate trading requirements into robust software implementations
• Improve stability, reliability, and performance of the trading engine
• Enhance monitoring and observability with Trading Operations
• Investigate and resolve production issues including crashes and bottlenecks
• Prepare for releases and deployments of new trading engine versions

• 5+ years of C++ software development in financial industry
• Strong understanding of parallel, asynchronous, and multithreaded programming for distributed systems
• Good knowledge of algorithms and data structures
• Strong analytical and problem-solving skills
• Understanding of trading lifecycle (order capture, execution, allocation, settlement, compliance)
• Scripting: Python, PowerShell, C#, SQL
• Proven track record in deployment best practices
• Experience in proactive system monitoring and troubleshooting

• Excellent communication skills
• Thrive in high-pressure trading room environments
• Ability to adapt to changing priorities
• C++
• Rust
• Python