Systems: Senior Linux Infrastructure Engineer (London) (DD994AC)

Referment; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Referment is teaming with a global investment and technology organisation to hire a Senior Linux Infrastructure Engineer for its Platform Engineering team. This hands-on role covers Linux platforms, networks, security and core services across data centres, cloud environments and international offices, balancing production depth with software development instincts.

The candidate will design, integrate and maintain infrastructure services, contribute to security and reliability, and collaborate

Qualifications

• At least ten years of infrastructure engineering experience.
• Strong Linux knowledge and configuration-management tooling.
• Proficient troubleshooting of host and network issues.
• Familiar with automated builds and CI/CD systems.

Responsibilities

• Design, integrate and maintain OS and infrastructure services, focusing on Linux.
• Contribute to global networks and security infrastructure across on-premises and cloud.
• Improve security framework for a large-scale production platform.
• Diagnose complex host and network issues using tracing and diagnostics.
• Collaborate with a global engineering team and partner departments.

Skills

Python development

Linux systems

Troubleshooting

CI/CD

Job description

Referment is working with a global investment and technology organisation to hire a Senior Linux Infrastructure Engineer for its Platform Engineering team. This is a hands‑on role in a global, cross‑platform group responsible for core infrastructure supporting technology development and investment activity. You’ll work across Linux platforms, networks, security controls and core services in data centres, cloud environments and international offices. The role combines deep troubleshooting with the design and integration of reliable infrastructure.

The Role

• Design, integrate and maintain operating‑system and infrastructure services, with a particular focus on Linux.
• Contribute to global networks, core network services and security infrastructure across on‑premises and cloud environments.
• Improve the security framework of a large-scale, fast‑moving production platform.
• Diagnose complex host and network issues using tracing and other diagnostic tools.
• Work with colleagues across a global engineering team and partner departments.

What We're Looking For

• At least ten years of comparable infrastructure engineering experience, including development work in Python.
• Deep knowledge of Linux operating systems and configuration‑management tooling.
• Strong host‑and network‑level troubleshooting skills.
• Familiarity with automated builds, software deployment and CI/CD systems.
• Clear communication and the ability to collaborate across disciplines and locations.

Desirable Experience

• Rust, Java, C, Go or C#.
• DNS, DHCP, Kerberos, network protocols, information security, databases, large-scale storage or Windows/Linux interoperability.

This could suit a senior Linux, platform or infrastructure engineer who combines production depth with strong software‑development instincts.