Senior Linux System Administrator - DV Security Cleared

Applicants must hold active and valid Developed Vetting (DV) security clearance to be considered for this opportunity. Unfortunately, applications from candidates without current DV clearance cannot be progressed.

An opportunity is available for a DV Cleared Senior Linux System Administrator to join a specialist security team supporting a secure, large-scale big data platform for a UK critical national infrastructure programme.

The platform supports a suite of cutting-edge cybersecurity and data science tools, with the team using DevOps methodologies to deliver continuous improvements in response to evolving security requirements.

Key Responsibilities

Administer, maintain and optimise Linux server environments across production and development platforms

Manage VMware vSphere/ESXi infrastructure, including virtual machines, resource allocation and host configuration

Develop and maintain automation using Ansible or equivalent tools to streamline deployments, configuration and routine tasks

Develop and maintain Bash and shell scripts

Troubleshoot complex Linux, networking, storage, permissions and performance issues

Support secure IT infrastructure and CI/CD environments

Support interoperability with Windows Server environments where required

Contribute to continuous improvements across a highly secure big data platform

Essential Skills

Strong Linux administration experience with RHEL, Rocky Linux or similar

VMware vSphere/ESXi administration

Ansible or equivalent infrastructure automation tools

Bash/shell scripting

Strong troubleshooting skills across Linux environments

Networking, storage and permissions

CI/CD environments and methodologies

IT infrastructure and security experience

Desirable Skills

Experience supporting large-scale or complex infrastructure environments

Experience working within DevOps environments

Windows Server knowledge

Experience supporting secure or highly regulated environments

Exposure to big data, cybersecurity or data science platforms

Benefits

Bonus of up to 10%

£5,000 annual DV allowance while working in a role requiring DV clearance

Pension scheme with 5% employee and 10% employer contribution

Private GP access for you and your immediate family

Enhanced maternity, paternity and adoption leave

Paid carers leave

Holiday purchase scheme

Optional healthcare, dental and gym benefits

Important Information

Applicants must hold active and valid DV clearance

Applicants must be UK residents

No visa sponsorship is available for this role

This role is predominantly on-site, with no fully remote or hybrid option

*Rates depend on experience and client requirements