System Administrator

JR United Kingdom; Oxford; On-site; GBP 50,000 - 75,000; Full time

Job summary

A leading company is seeking a Senior Linux System Administrator to manage critical application infrastructures across healthcare and finance sectors. This role involves designing server layouts, optimizing hosted solutions, and ensuring operational excellence. The candidate should have strong Linux management skills, experience with VMware, and the ability to troubleshoot in high-pressure environments.

Benefits

10% bonus

Up to 5% pension contributions

25 days holiday

Private healthcare options

Gym membership contribution

Life assurance (x3 salary)

Qualifications

• Experience with RHEL in a live environment.
• Proficient in automation tools (Puppet, Ansible, or Chef).
• Experience in managing hundreds of virtual servers.

Responsibilities

• Lead deployment of new applications and changes, ensuring documentation and monitoring.
• Provide technical support across all hosted services.
• Collaborate with stakeholders for pre-operational sign-offs.

Skills

Linux deployment and management

Automation with Puppet

VMware management

Troubleshooting

Job description

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System Administrator | Server Hosting Infrastructure | Mission-Critical SaaS

Our client is looking for a Senior Linux System Administrator to join their expanding organisation that powers some of the world’s most important applications in healthcare, finance and government. The company is privately held, headquartered in the UK & USA, with offices worldwide. Their software products are used daily by millions across more than 100 countries, with 200+ employees in the UK and 1,800 globally.

You will be based in the client’s new office near Windsor train station, working in the office 3 days a week due to the company's vibrant culture.

Your role involves designing cage, rack, and server layouts, ensuring space, power, and cooling support existing and future solutions. You will collaborate with engineering teams to optimize performance, efficiency, and operability of hosted solutions.

As a senior Linux System Administrator, you will support all hosted services, ensuring incidents and problems are resolved promptly and deploying approved changes as needed.

The core technical environment:

• Linux deployment and management experience with RHEL
• Automation experience with Puppet; experience with Ansible or Chef is a plus
• VMware 6 deployment and management experience (handling hundreds of virtual servers)

You will work in a mission-critical production environment. It is essential that you have experience working with live environments, as server downtime is not acceptable. Troubleshooting, proactive problem identification, and fixing issues swiftly are key skills.

Responsibilities:

• Lead deployment of new applications and changes, ensuring documentation and monitoring
• Hands-on administration and maintenance of hosted solutions, including firewalls, switches, servers, and storage
• Provide technical support across all hosted services
• Lead provisioning and deployment of server, network, and hosting equipment, including configuration and building
• Collaborate with stakeholders to obtain pre-operational sign-offs

Benefits include:

• 10% bonus (potentially doubled with good performance)
• Up to 5% pension contributions
• 25 days holiday
• Private healthcare (family options available)
• Gym membership (£400/year contribution)
• Life assurance (x3 salary)

This is a fantastic opportunity to join a well-established, growing company. If interested, please apply today!