Linux System Administrator

We are seeking a skilled Linux Engineer / Linux Systems Administrator to take ownership of our client's large scale Linux environment consisting of approximately 100 servers. This role will focus on Business-as-Usual (BAU) operations, maintenance, stability and performance, while also contributing to an ongoing infrastructure modernisation programme.
This is an excellent opportunity for a technically strong Linux professional who enjoys both operational responsibility and forward-looking project work.

Key Responsibilities

BAU & Operational Support
Administer, monitor, and maintain circa 100 Linux servers across production and non-production environments
Perform system patching, upgrades and security hardening
Manage user access, permissions and authentication services
Troubleshoot performance issues, outages and system alerts
Maintain high availability, reliability and up time standards
Manage backups, restores and disaster recovery processes

Modernisation & Project Work
Contribute to infrastructure improvement and automation initiatives
Support migration, consolidation or upgrade projects
Assist with cloud, virtualisation or containerisation initiatives where applicable
Identify opportunities for efficiency, performance and cost optimisation

Documentation & Governance
Maintain clear technical documentation and runbooks
Follow change management and incident management processes
Work collaboratively with network, security and application teams

Required Skills & Experience
Strong hands-on experience administering Linux environments (e.g., Ubuntu, CentOS, Red Hat, Debian or similar)
Solid understanding of server hardware, storage and virtualisation platforms
Experience with patch management and security best practices
Proficiency with shell scripting (Bash or similar)
Knowledge of monitoring and logging tools
Experience supporting large-scale server estates

Desirable
Exposure to cloud platforms (AWS, Azure, GCP)
Experience with automation tools (Ansible, Puppet, Chef, Terraform)
Knowledge of containers (Docker, Kubernetes)
Understanding of networking fundamentals and firewalls
ITIL or relevant Linux certifications

Personal Attributes
Strong problem-solving and analytical skills
Ability to prioritise workload in a fast-paced environment
Clear communication and documentation abilities
Proactive and improvement-focused mindset

What's on Offer
Opportunity to influence and shape infrastructure modernisation
Exposure to both operational stability and transformation projects
Supportive technical environment with room for growth
Competitive salary and benefits package

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