Senior Unix Engineer

About the Role

As the Senior Unix Systems Engineer, you’ll act as the technical lead and senior escalation point for Unix platforms across Paragon’s hosting estate. You’ll be responsible for the stability, performance, security, and ongoing improvement of AIX and Linux environments, while supporting infrastructure strategy, automation, and mentoring within the team. This is a senior, hands‑on role for someone who enjoys being close to the platform, leading by example, and shaping how Unix systems are designed, supported, and improved across on‑prem and cloud environments.

• Act as the senior technical authority for Unix platforms across Paragon
• Design, build, support, and optimise AIX and Linux environments (Red Hat, Oracle Linux, CentOS)
• Provide 3rd line support and senior escalation for complex Unix incidents
• Lead patching, upgrades, lifecycle management, and platform improvements
• Support Unix platforms across on‑prem VMware and public cloud environments (AWS, Azure, OCI)
• Drive automation, scripting, and configuration improvements to reduce manual effort
• Ensure Unix environments meet security, compliance, backup, and DR requirements
• Work closely with cloud, infrastructure, security, and application teams
• Contribute to platform strategy and mentor engineers within the team
• Participate in an on‑call rota and occasional out‑of‑hours work

• Extensive experience supporting AIX and Linux in enterprise environments
• Strong knowledge of Oracle Linux, including Ksplice
• Experience across on‑prem, hybrid, and cloud infrastructure
• Solid understanding of virtualisation, storage, and Unix networking
• Strong troubleshooting skills and ability to resolve complex, business‑critical issues
• Experience working in ITIL‑governed environments
• Confident communicator, comfortable working with senior technical and non-technical stakeholders

• Unix or Linux certifications (RHCE, RHCSA, or similar)
• Strong scripting and automation experience (Bash, Python, Power Shell)
• Experience working in AWS, Azure, or OCI
• Previous experience mentoring engineers or acting as a technical lead

Contract:

Permanent

Location:

Remote (UK based)

We are an equal opportunity employer, and we encourage job applications from people of all backgrounds. All qualified applicants will receive consideration regardless of gender, race, religion, age, disability, sexual orientation, or marital status.

This is a permanent remote role – with occasional travel to Paragon sites. Hours Monday–Friday, 9am–5pm. Please note that due to the high volume of responses we receive, only successful applicants will be contacted.