Wincent

HFT Performance Engineer (Low Latency)

In short

This role optimizes the full HFT trading stack for latency, reliability, and efficiency, involving kernel-level debugging, network tuning, hardware benchmarking, and live-system profiling. The employer is a trading firm with a flagship multi-strategy fund, hiring a senior engineer remotely across the UK, Poland, Czech Republic, Slovakia, or Gibraltar. It demands 5+ years of low-latency hardware/software expertise, Linux kernel experience, deep network engineering knowledge, and familiarity with market data feeds and exchange-level protocols.

About the Role
You will optimize the full trading stack for latency, reliability, and efficiency. You will debug kernel-level systems, tune network stacks, benchmark hardware, profile live systems, build monitoring tools, deploy performance improvements, and collaborate with technical teams.
Requirements
•5+ years of low-latency hardware and software expertise
•Kernel Linux experience
•Network engineering and deep network knowledge
•Understanding of market data feeds, order books, and exchange-level protocols
•Experience with performance-testing tools and scripting
Responsibilities
•Optimize latency, reliability, and efficiency across the trading stack
•Perform kernel-level debugging, network optimization, and hardware benchmarking
•Monitor and profile live trading systems
•Create monitoring tools and identify bottlenecks
•Prototype, test, and deploy performance improvements
•Collaborate with trading, infrastructure, and software engineers
Benefits
•Performance bonus every six months
•Equity compensation
•Opportunity to invest in the flagship multi-strategy fund
•Relocation support
•Remote-work option
•Flexible working time
•Unlimited paid vacation
Hiring Process
Introductory call → technical screening → technical interview → optional trading interview → soft-skills interview → CEO interview.

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