Senior Systems Administrator - Linux​/Unix

Overview

Join a leading electronic trading software vendor powering some of the world’s most sophisticated financial institutions. Their platforms are fast, resilient, and mission‑critical—and so is the engineering behind them. You’ll be part of a team that values technical excellence, autonomy, and a genuine passion for solving deep infrastructure challenges.

As a Senior Systems Administrator, you’ll take ownership of a large‑scale Linux/Unix environment supporting ultra‑low‑latency trading systems. This is a hands‑on, high‑impact role where your decisions directly influence performance, reliability, and client experience.

• Performance tuning, kernel optimisation, and troubleshooting
• Automation, scripting, and configuration management
• Monitoring, observability, and incident response
• Infrastructure improvements and strategic engineering initiatives
• This isn’t a “keep the lights on” job—this is engineering with purpose.

• Deep expertise in Linux/Unix administration
• Strong scripting skills (Python, Bash, or similar)
• Experience in high‑availability or high‑performance environments
• A passion for problem‑solving and system optimisation
• Curiosity, ownership, and a calm head under pressure

If you’re a senior engineer who wants to work with cutting‑edge systems in a fast‑moving, intellectually stimulating environment, this is your chance to make a real impact.