Low-Latency Systems Engineer: Kernel & Network

Applied Intuition Inc.; England; Hybrid; GBP 67,000 - 95,000; Full time

Job summary

A leading trading technology firm is seeking a Performance Systems Engineer to optimize low-latency network infrastructure. The role requires strong C programming skills and experience with Linux kernel interfaces. Applicants should have a background in network optimization and hands-on experience with eBPF, io_uring, and DPDK. This is a unique opportunity to work on production trading infrastructure focusing on performance optimization.

Benefits

Comprehensive health insurance

Retirement plans

High-performance hardware

Qualifications

• Strong C programming skills and experience with Linux kernel interfaces.
• Experience optimizing network performance in production systems.
• Hands-on experience with kernel bypass techniques and performance profiling tools.

Responsibilities

• Profile and improve market data capture pipeline from NIC to application layer.
• Build and tune systems using eBPF, io_uring, and DPDK.
• Identify bottlenecks and validate improvements using profiling tools.

Skills

Systems programming experience

Rust familiarity

Network optimization background

Kernel and low-level tools

Performance profiling

Cloud infrastructure

Professional development practices

Problem-solving and statistical thinking

Communication

Education

Bachelor's degree in Computer Science, Engineering, or related field

Tools

Linux performance tools (perf, bpftrace)

eBPF

io_uring

DPDK

Job description

A leading trading technology firm is seeking a Performance Systems Engineer to optimize low-latency network infrastructure. The role requires strong C programming skills and experience with Linux kernel interfaces. Applicants should have a background in network optimization and hands-on experience with eBPF, io_uring, and DPDK. This is a unique opportunity to work on production trading infrastructure focusing on performance optimization.