Senior Software Engineer, C++

Join Flow Traders in Amsterdam to build and optimize in-house trading technology handling large-scale market data and trading across global venues. You will work with technologists, quantitative researchers, and traders on venue connectivity, trading engines, shared platforms, and high-performance software.

Responsibilities

• Lead development and global rollout of the Core platform across multiple business and focus groups.
• Deploy and validate deliverables with traders and quants in a fast-paced iterative process.
• Develop tools and frameworks for data-driven systematic pricing and trading strategies.
• Refine platform requirements and iterate on design with engineers, quants, and technical traders.
• Build exchange connectivity software using APIs and protocols such as FIX, WebSocket, and HTTP.
• Maintain and extend testing suites to ensure software quality.
• Optimize exchange communication through kernel bypass, TLS, and connection handling.
• Research exchange behavior to align system behavior with exchange behavior.
• Implement exchange connectivity solutions using C++, Rust, Python, and TypeScript SDKs.
• Implement trading algorithms based on trader and quant requirements.
• Improve trading engine stability, reliability, and performance.
• Enhance monitoring and observability with Trading Operations.
• Investigate and resolve production crashes, logic issues, and performance bottlenecks.
• Prepare releases and deployments of new trading engine versions.

Requirements

• BSc, MSc, or PhD in Computer Science, Mathematics, or equivalent.
• 5+ years of post-graduation professional C++ software development experience.
• Proprietary trading industry experience is preferred.
• Ability to write clean, reliable, and highly scalable code.
• Good knowledge of algorithms and data structures.
• Experience with parallel, asynchronous, and multithreaded programming.
• Interest in maximizing performance from available hardware and software.
• Ability to communicate with technical and non-technical business colleagues.

Benefits

• Flow Academy and opportunities to attend domain-related conferences.
• Daily catered lunch, coffee, kitchen, and snack bar.
• In-house bar and lounge with arcade, table tennis, billiards, and game consoles.
• Company boat.
• In-house gym and sessions with a nutritionist or personal trainer.
• Bi-weekly massages.
• Annual company trip and other events.
• Global rotations across offices worldwide.
• Annual discretionary profit share.