large complex environment with the following areas of focus: operations, systems engineering and systems performance. Server Management and Support. Low latency network interfaces and Kernel bypass. Ideally experience with Solarflare with onload and Mellanox with VMA. System hardware/OS tuning and performance troubleshooting. Experience with Automation tooling: Chef or Ansible Experience with Observability stack. Strong knowledge of server More ❯
London, England, United Kingdom Hybrid / WFH Options
Oxford Knight
scale operations, systems engineering, and performance. Experience in server management and support: HP, SuperMicro, Dell, overclock servers. Proficiency with low latency network interfaces and kernel bypass (configuration and optimization): Solarflare with Onload, Mellanox with VMA. In-depth knowledge of server network stack configuration, tuning, and troubleshooting including TCP, UDP (unicast/multicast), NTP, PTP, Wireshark/TShark. Bachelor's More ❯
London, England, United Kingdom Hybrid / WFH Options
Oxford Knight
systems engineering and systems performance Experience in server management and support: HP, SuperMicro, Dell, various overclock servers Proficiency with low latency network interfaces and kernel bypass (configuration and optimization): Solarflare with onload, Mellanox with VMA In-depth knowledge of server network stack configuration, tuning & troubleshooting including TCP, UDP (unicast/multicast), NTP, PTP, wireshark/tshark Bachelor’s degree More ❯
and tune Linux systems (RHEL, Rocky, CentOS, OEL) for low latency applications, including memory, CPU, and network tuning. Work closely with low latency network technologies, including kernel bypass with Solarflare/onload, and understand physical server architecture differences (Intel, AMD, ARM). Automate operational workflows and scripting using Python, Rust, or Bash. The ideal candidate will have: 8+ years More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Understanding Recruitment
and tune Linux systems (RHEL, Rocky, CentOS, OEL) for low latency applications, including memory, CPU, and network tuning. Work closely with low latency network technologies, including kernel bypass with Solarflare/onload, and understand physical server architecture differences (Intel, AMD, ARM). Automate operational workflows and scripting using Python, Rust, or Bash. The ideal candidate will have: 8+ years More ❯
automated test and benchmark framework, risk-management, performance-tracking, and other tools Testing, implementing, and benchmarking different feed handlers (internal and external) on different hardware offerings and settings (e.g. Solarflare, Mellanox NICs, different switches, different compilers and compiler flags, different OS options, etc.) Working closely with trading teams to gather requirements and develop solutions in a fast-paced environment More ❯
low-level systems Comfort working in a Linux environment with tools like perf, gdb, valgrind Familiarity with network protocols , especially UDP/TCP, multicast, or kernel bypass (e.g., DPDK, Solarflare) Bonus: Exposure to trading systems, market data feeds, or exchange connectivity You Might Thrive Here If You: Think in nanoseconds and debug in disassembly Enjoy profiling code more than More ❯
low-level systems Comfort working in a Linux environment with tools like perf, gdb, valgrind Familiarity with network protocols , especially UDP/TCP, multicast, or kernel bypass (e.g., DPDK, Solarflare) Bonus: Exposure to trading systems, market data feeds, or exchange connectivity You Might Thrive Here If You: Think in nanoseconds and debug in disassembly Enjoy profiling code more than More ❯
London, England, United Kingdom Hybrid / WFH Options
Citi
and improve application performance via system tuning Thorough understanding of modern computer architecture - modern x86 AMD and Intel cache hierarchies as an example. Kernel-bypass technology knowledge (such as Solarflare OpenOnload/TCPDirect/ef_vi, RoCE, DPDK) Prior experience in a similar Site Reliability Engineering (SRE), DevOps, distributed computing, systems engineering/administration Ability to context switch to More ❯
understanding of modern computer architecture Outstanding communication skills, with fluency in English a must-have Experience with fast-packet processing in user space and common kernel-bypass implementations (e.g. Solarflare OpenOnload, TCPDirect, etc. Experience working around the performance challenges of languages with managed runtime (such as Java or C#) and familiarity with a typed functional language Benefits and Incentives More ❯
can you describe modern x86 AMD and Intel cache hierarchies? Some experience with fast-packet processing in user space and common kernel-bypass implementations would be ideal (such as Solarflare OpenOnload/TCPDirect/ef_vi, Exablaze, InfiniBand verbs, DPDK) Experience working around the performance challenges of languages with a managed runtime (such as Java or C#) and familiarity More ❯
