Senior Software Engineer

New York City | $400,000 to $500,000 total compensation

We are working with an exciting new exchange joint venture backed by leading financial institutions, building out a world-class engineering team in New York.

This is a senior role for a low-latency C++ engineer who enjoys working close to the metal, optimising performance-critical systems and solving problems where microseconds, memory behaviour and network efficiency genuinely matter.

The team is looking for someone with deep experience in modern C++, high-performance systems and trading infrastructure. You will be working on critical applications across the exchange technology stack, with a focus on refactoring, performance optimisation, network utilisation and low-latency design.

• Refactoring and optimising performance-sensitive C++ applications
• Improving latency, throughput and network utilisation across core systems
• Designing internal APIs and protocols for high-performance integration
• Working on multi-threaded systems, lock-free queues and memory optimisation
• Analysing performance across CPU, cache, network and application layers
• Supporting production systems and resolving issues in real time
• Collaborating with a high-calibre engineering team on low-latency architecture
• Mentoring junior engineers and helping raise technical standards across the group

• 10+ years of experience building low-latency applications in modern C++
• Strong understanding of cache coherency, core isolation, memory management and data structure optimisation
• Experience with multi-threaded design and lock-free programming techniques
• Strong knowledge of TCP, UDP, latency measurement and throughput analysis
• Strong debugging skills and the ability to support critical production systems
• Experience with Git/Git Lab, Wireshark and related engineering tools

• Experience with exchange connectivity, market data, order gateways, matching engines or trading systems
• Knowledge of FIX or exchange-specific protocols
• Experience with Solarflare hardware configuration, Open Onload or related network acceleration technologies
• Background in electronic trading, exchanges, market infrastructure, hedge funds or high-frequency trading environments

This is a strong opportunity for a senior engineer who wants to work on genuinely demanding low-latency systems within a high-profile financial technology buildout.