DV Cleared Linux Infrastructure Engineer

Synergize Consulting Ltd; Reading; On-site; GBP 65,000 - 95,000; Full time

Job summary

Synergize Consulting Ltd seeks an experienced Linux Infrastructure Engineer with active DV clearance to support a major public-sector programme. You will own complex Linux issues, upgrade platforms, and contribute to resilience in a tightly controlled environment.

You’ll handle 2nd/3rd-line support, patching, security hardening and automation, working with VCS, GFS2, LVM, and VMware in a secure on-premises setting. Expect collaboration across security, networking and storage teams.

Qualifications

• Active DV clearance is essential for the role.
• Extensive hands-on Linux administration and troubleshooting experience.
• Experience with RHEL and Ubuntu Server in large, critical environments.
• Knowledge of VCS and Red Hat Resilient Storage/GFS2 is highly desirable.

Responsibilities

• Provide advanced 2nd/3rd-line support for enterprise Linux infrastructure.
• Administer, patch and upgrade RHEL and Ubuntu Server environments.
• Troubleshoot OS, kernel, networking, storage and file-system issues.
• Support highly available Linux services including VCS and GFS2.
• Manage enterprise storage technologies and disaster recovery activities.
• Maintain security, access controls, auditing, and compliance.
• Investigate faults and perform root-cause analysis.
• Collaborate with cross-functional teams to resolve complex issues.

Skills

DV clearance

Senior Linux

2nd/3rd-line

RHEL

Ubuntu Server

VMware

VCS

GFS2

LVM

Tools

Veritas Cluster Server

Red Hat Resilient Storage

GFS2

SCCM

LDAP

VMware vSphere

Job description

We're looking for an experienced Linux Infrastructure Engineer with active DV clearance to support a highly secure, business-critical infrastructure environment within a major public-sector programme.

You'll join an enterprise infrastructure team responsible for the stability, security and performance of a complex on-premises Linux estate. This is a hands‑on engineering role combining advanced second- and third-line support with infrastructure improvement and project delivery.

You'll take ownership of complex technical issues, support critical Linux services and contribute to platform upgrades, vulnerability remediation, resilience and service improvement within a tightly controlled environment.

Key Responsibilities

• Provide advanced 2nd/3rd-line support for enterprise Linux infrastructure, taking ownership of complex incidents through to resolution.
• Administer, build, configure, patch and upgrade Red Hat Enterprise Linux (RHEL) and Ubuntu Server environments.
• Troubleshoot operating-system, Kernel, performance, networking, storage and file‑system issues.
• Support highly available and clustered Linux services, including Veritas Cluster Server (VCS) and Red Hat Resilient Storage/GFS2.
• Manage enterprise storage and volume technologies, including VXFS, ZFS, XFS, EXT3/4, UFS, SVM, VXVM and LVM.
• Support storage replication, disaster recovery and resilience activities, including SRDF and STAR.
• Maintain system security, access controls, audit logging and compliance requirements, including LDAP, CyberArk and SCCM.
• Investigate recurring faults, perform root‑cause analysis and implement preventative improvements.
• Support Linux workloads on VMware or comparable virtualisation platforms.
• Contribute to infrastructure upgrades, obsolescence remediation, automation and service transition.
• Maintain technical documentation and follow established incident, problem, change and configuration management processes.
• Work collaboratively with infrastructure, networking, storage, security and application teams to resolve complex technical issues.

Essential Skills & Experience

• Active DV clearance - essential.
• Strong experience in a senior Linux Infrastructure Engineer or 2nd/3rd-line Linux support role.
• Hands‑on administration and troubleshooting of Red Hat Enterprise Linux and Ubuntu Server.
• Experience supporting large-scale, business-critical Linux environments, including Legacy platforms.
• Strong knowledge of Linux system administration, patching, upgrades, security hardening, logging and auditing.
• Practical experience with Veritas Cluster Server and/or Red Hat Resilient Storage/GFS2.
• Knowledge of enterprise file systems and volume management, including VXFS, ZFS, XFS and LVM.
• Experience with enterprise storage replication and disaster recovery, ideally SRDF and STAR.
• Familiarity with VMware virtualisation, LDAP, CyberArk and SCCM.
• Strong networking fundamentals, including TCP/IP, DNS, routing, Firewalls and connectivity troubleshooting.
• Understanding of container technologies and their interaction with the underlying Linux operating system.
• Excellent diagnostic skills and the ability to resolve complex infrastructure issues in a secure, controlled environment.
• A methodical approach to incident management, technical documentation and change control.