Trading Infrastructure Reliability Engineer

Selby Jennings; Greater London; On-site; GBP 60,000 - 85,000; Full time

Job summary

A financial trading firm in London is seeking a Technical Operations Engineer to provide hands-on support for mission-critical systems. You will monitor and resolve production issues across trading infrastructure, manage broker connectivity, and actively contribute to automation improvements. Ideal candidates have 5+ years of experience supporting trading systems, strong Linux/Unix knowledge, and proficiency in Python and SQL. This role offers exposure in a high-availability environment with greater ownership and fewer layers.

Qualifications

• 5+ years supporting trading systems in a production environment.
• Strong Linux/Unix fundamentals and comfort at the command line.
• Solid understanding of FIX protocol and exchange connectivity.

Responsibilities

• Monitor, investigate, and resolve production issues across trading infrastructure.
• Manage exchange and broker connectivity, and coordinate system changes.
• Build runbooks, write automation, and extend monitoring tooling.

Skills

Production support for trading systems

Linux/Unix fundamentals

FIX protocol knowledge

Python scripting

Bash scripting

SQL proficiency

Networking basics

Monitoring tools familiarity

Job description

A financial trading firm in London is seeking a Technical Operations Engineer to provide hands-on support for mission-critical systems. You will monitor and resolve production issues across trading infrastructure, manage broker connectivity, and actively contribute to automation improvements. Ideal candidates have 5+ years of experience supporting trading systems, strong Linux/Unix knowledge, and proficiency in Python and SQL. This role offers exposure in a high-availability environment with greater ownership and fewer layers.