Linux Infrastructure Engineer eDV Cleared

We are seeking a highly skilled Linux Infrastructure Engineer to support a leading specialist consultancy. You will manage, maintain, and scale secure, resilient Linux environments across physical, virtual, and cloud platforms. Acting as a subject matter expert, you will drive automation and performance tuning to support business-critical services. This permanent, on-site role requires a green badge (eDV) Security Clearance to work high side.

About the Client Our client is a highly respected specialist consultancy dedicated to driving efficiency, strategic alignment, and innovation within complex environments. Dedicated to high availability and operational excellence, they provide a structured and collaborative environment where professionals can truly optimise infrastructure performance. Due to sustained growth and new project demands, they are currently expanding their technical delivery teams.

Key Responsibilities Design, implement, and support secure, resilient Linux-based infrastructure environments (e.g., Red Hat, Ubuntu, CentOS). Manage, maintain, and optimise Linux servers across physical, virtual, and cloud platforms. Automate infrastructure provisioning and configuration management using tools such as Ansible, Puppet, or Terraform. Perform system monitoring, performance tuning, and capacity planning to ensure high availability. Troubleshoot and resolve complex infrastructure and OS-level issues, conducting thorough root cause analysis.

Manage system patching, security updates, backups, and disaster recovery processes. Implement security best practices, including system hardening, access control, and vulnerability management. Support deployment processes, migrations, and new software releases whilst maintaining meticulous documentation. Collaborate with cross-functional teams to provide 2nd and 3rd line support for infrastructure-related incidents. Required Skills and Experience Proven experience in Linux system administration covering platforms like RHEL, Ubuntu, or CentOS.

Proficiency in scripting languages such as Bash or Python for automation tasks. Hands-on experience with configuration management tools like Ansible, Puppet, or Chef. Solid understanding of networking fundamentals (TCP/IP, DNS, DHCP, firewalls).

Experience with monitoring, logging, and virtualisation technologies (e.g., VMware, KVM, Nagios, Prometheus, Splunk). Familiarity with containerisation technologies including Docker and Kubernetes. Knowledge of cloud platforms such as AWS, Azure, or GCP. Strong analytical, problem-solving, and communication skills under pressure. Strict Requirements:
Candidates must hold an active eDV clearance (Green Badge) and be fully prepared to work high side. The role also requires being on-site 4 to 5 days per week. Desirable Criteria:

Experience with Infrastructure as Code (Terraform, Cloud Formation) and CI/CD pipelines. Knowledge of identity management systems (LDAP, DNS) and security frameworks. Experience working within secure or highly regulated environments. Professional certifications such as RHCSA, RHCE, or CompTIA Linux. A degree in Computer Science, Information Technology, or a related field (or equivalent practical experience). What can they offer in return? In addition to a competitive salary the business also offers the following benefits:
Annual Leave: 25 days  bank holidays Pension: 4% employer contribution Life Assurance: 3x basic salary Medical Insurance:
Cashback plan for dental, optical, and therapy costs Learning & Development:
Training budgets, Udemy access, and qualification funding Salary Sacrifice Schemes:
Pension exchange, electric cars, cycle-to-work, and holiday buying/selling