Platform Specialist

Role: Platform Specialist – Low Latency Infrastructure (ULL) Team: Application Engineer Location: London / hybrid Salary: Up to £280k base Benefits Our client is a global leader focused on delivering mission-critical, low latency infrastructure solutions for high-performance trading environments. They are looking for a highly skilled Platform Specialist to join their talented team and ensure the highest levels of availability, performance, and security across their low latency platform. In this role, you will: Design, document, and enhance platform services including servers, storage, and cloud infrastructure. Provide L3 escalation support to troubleshoot and remediate performance and availability issues. Collaborate with internal and external partners including network, application, quant, and business teams to deliver scalable solutions. Proactively identify potential system bottlenecks and implement performance tuning and optimizations. Manage 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 experience in Linux system operations, engineering, or performance tuning in enterprise or trading environments. Experience with High Performance Computing (HPC) Deep understanding of network protocols (TCP, UDP, multicast) and low latency networking principles. Hands-on experience with kernel tuning and kernel development. Familiarity with configuration management tools such as Ansible, Chef, or Terraform. Strong scripting and automation skills, preferably Python, Rust, or Bash. Excellent problem-solving skills with a proactive and ownership mindset. Strong verbal and written communication skills. Nice to have: Knowledge of trade flow protocols like FIX, BOE, OUCH/ITCH, PILLAR, SBE, OMEX. Experience with FPGA-based applications and L1 network design. Familiarity with various network switch architectures and vendors. If you’re ready to work in a high-paced, challenging environment where your expertise directly impacts critical trading infrastructure, apply now to join this world-class team. Interested? Apply today to advance your career in low latency platform engineering!