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A hybrid Software Development role at MARGO.
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Original listing text, shown exactly as published by the company.
Core HFT Engineering· Design, develop and optimise ultra-low latency C++ trading components· Work on critical execution paths for market data processing and order routing· Implement lock-free and wait-free algorithms· Optimise memory allocation, cache locality and CPU utilisation· Reduce jitter and tail latency
System-Level & Hardware-Aware Optimisation· Analyse and optimise CPU behaviour (branch prediction, cache misses, NUMA effects)· Work closely with infrastructure and network teams on kernel bypass and user-space networking· Profile systems at instruction-level and hardware-counter granularity
Production Ownership· Ensure correctness, determinism and stability of production trading systems· Participate in production releases and live deployments· Investigate latency regressions and production anomalies· Maintain rigorous operational discipline
Use of C# (Non-Critical Path)C# may be used outside the latency-critical execution path for:· Monitoring and control tooling· Configuration and orchestration services· Risk guards, limits and kill-switch mechanisms· Real-time dashboards and operational analytics
C# is not used on the execution path and does not replace core C++ expertise.
Technical Environment
Core Technologies· Modern C++ (C++17/20)- Lock-free programming - Custom memory allocators- Zero-copy architectures· Linux (advanced / low-level understanding)- CPU pinning- Huge pages- NUMA architectures· Networking- TCP / UDP market data feeds- Multicast- Kernel bypass technologies (DPDK, Solarflare Onload or equivalent)
Latency & Performance Tooling· CPU profilers and hardware performance counters· Packet capture and latency measurement tools· Exchange simulators and market data replay tools
Essential· Strong experience in C++ development for performance-critical or low-latency systems· Proven background in HFT or ultra-low latency trading environments· Deep understanding of CPU architecture, caches and memory models· Strong knowledge of concurrency, memory ordering and Linux internals· Experience working close to hardware and network layers· Strong production mindset and sense of ownership
Highly Valued· Exposure to C# in trading, control or monitoring systems· Experience with market data feed handlers or order gateways· Prior exposure to market making or proprietary trading environments· Experience with FPGA-assisted or hybrid architectures
