Systems: Senior Linux Infrastructure Engineer (London) (46084BE)

Referment; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Referment is hiring a Senior Linux Infrastructure Engineer to join the Platform Engineering team. You will design, implement and maintain Linux-based infrastructure and services across on-premise and cloud environments, supporting global investment activity and technology development.

You will work with colleagues across locations, focusing on deep troubleshooting, security improvements and scalable deployments.

Qualifications

• Over 10 years in infrastructure engineering with Python development.
• Deep Linux OS knowledge and config-management tooling.
• Strong host- and network-level troubleshooting skills; capable of collaborating across locations.

Responsibilities

• Design, integrate and maintain OS and infrastructure services with focus on Linux.
• Contribute to global networks, core network services and security infrastructure across on-prem and cloud.
• Improve the security framework of a large-scale production platform.
• Diagnose complex host and network issues using tracing and diagnostic tools.
• Collaborate with a global engineering team and partner departments.

Skills

Linux expertise

Python

Troubleshooting

Networking fundamentals

Security awareness

Tools

Ansible

CI/CD pipelines

Git

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.