Data Center Operations Engineer - Banking & Finance

Hamilton Barnes Associates Limited; Greater London; On-site; GBP 170,000 - 200,000; Full time

Job summary

A leading global quant firm in London is seeking a skilled Data Center Operations Engineer. The role involves configuring and troubleshooting network infrastructure in a high-pressure environment, requiring expertise in low-latency trading systems and strong networking skills. Join a team that values individual contributions and fosters a collaborative culture. Salary up to £200,000 total comp.

Qualifications

• Experience in low-latency trading, HPC, or colocation data centres.
• Strong understanding of networking technologies.
• Ability to perform basic configurations and diagnostics.

Responsibilities

• Install, configure, and troubleshoot network switches.
• Perform hardware and networking support at data centres.
• Collaborate with engineering teams to optimize network performance.

Skills

Low-latency trading experience

Networking concepts (Layer 1–3)

Hands-on experience with Arista, Cisco, or Juniper

Linux systems knowledge

Independent operation under pressure

Job description

Do you want to work for one of the world’s leading firms in automation?

Join a multibillion-pound global quant firm specializing in quantitative-driven electronic market-making, providing liquidity across Equity, FX, Fixed Income, and Commodity markets. Operating globally with counterparties, exchanges, and e-trading venues, they ensure market participants access the best prices across asset classes.

With a lean structure, employees are valued as individuals rather than just numbers. The CEO knows their names, and their contributions have a direct impact on the business. Driven by bright, inquisitive minds, the company fosters a flat structure where all ideas are evaluated, prioritized, and supported for implementation.

They are currently searching for a skilled Data Center Operations Engineer to work in the first class environment. With a great team culture, this could be your final career stop! If you’re interested, apply today!

Key Responsibilities:

• Install, configure, and troubleshoot network switches and server infrastructure in data centre environments
• Perform hands-on hardware and networking support at local data centres; assist with global rollouts when required
• Build and manage racks, including structured cabling, optics/transceivers, and power planning
• Collaborate with engineering teams to support low-latency trading infrastructure, ensuring optimal network performance
• Maintain high standards for uptime, reliability, and operational procedures

Required Skills/Qualifications:

• Proven experience working in low-latency trading, HPC, or colocation data centres
• Strong understanding of networking concepts (Layer 1–3), switching technologies, and hands-on experience with vendors like Arista, Cisco, or Juniper
• Ability to log in to switches, perform basic configurations, diagnostics, and packet-level troubleshooting
• Familiarity with server hardware components such as NICs, SSDs, GPUs, FPGAs, and transceivers
• Exposure to Linux systems (command line and basic performance/debug tools)
• Ability to operate independently in high-pressure environments, manage competing priorities, and travel locally as needed.

Location:

• London (onsite with travel to DCs)

Salary:

• Up to £200,000 total comp