Linux Engineer - DV Cleared

LA International; England; On-site; GBP 65,000 - 90,000; Full time

Job summary

LA International is seeking a Linux Engineer in the United Kingdom with active DV clearance to provide senior 2nd/3rd line support across RHEL and Ubuntu environments. You will build, patch, maintain, and troubleshoot Linux systems while collaborating with Networking, Security and Storage teams.

The role focuses on security hardening, incident response and ITIL-aligned processes. Candidates should have extensive experience with Veritas VCS, GFS2, VMware, LDAP, and storage technologies, and be

Qualifications

• Senior 2nd/3rd Line Linux infrastructure experience.
• Strong hands-on with RHEL and Ubuntu Server.
• Experience in large-scale Linux environments.

Responsibilities

• Provide advanced 2nd and 3rd Line Linux support across RHEL/Ubuntu.
• Build, patch, maintain and troubleshoot Linux OS.
• Manage Veritas VCS and GFS2 clustering.
• Administer enterprise file systems and logical volume management.
• Support VMware-hosted Linux workloads.
• Perform security hardening and auditing.

Skills

RHEL

Ubuntu

Linux troubleshooting

Veritas VCS

GFS2

VXFS

ZFS

EXT3/4

XFS

LVM

SRDF

STAR

VMware

CyberArk

SCCM

ITIL

LDAP

Networking

Security hardening

Documentation

Job description

Linux Engineer

Must have an Active DV Clearance

Linux Engineer Responsibilities

• Provide advanced 2nd and 3rd Line support across RHEL and Ubuntu Server environments.
• Build, configure, patch, maintain and troubleshoot Linux operating systems.
• Support legacy RHEL environments, managing lifecycle, obsolescence and vulnerability remediation.
• Diagnose complex operating system, networking, storage, kernel and performance issues.
• Administer Linux clustering technologies, including Veritas VCS and Red Hat GFS2.
• Manage enterprise file systems and logical volume management.
• Support storage replication technologies, including SRDF and STAR.
• Maintain Linux workloads hosted on VMware virtualisation platforms.
• Perform security hardening, access management, auditing and compliance activities.
• Configure and troubleshoot LDAP services, networking and connectivity.
• Monitor infrastructure performance, capacity and availability.
• Support infrastructure upgrades, automation, service transitions and technical improvements.
• Manage incidents, problems, changes and configuration records in accordance with ITSM processes.
• Collaborate with Networking, Storage, Security, Database and Application teams.
• Produce technical documentation and provide guidance to junior engineers.

Linux Engineer Skills and Experience

• Proven senior 2nd or 3rd Line Linux infrastructure engineering experience.
• Strong hands-on experience with Red Hat Enterprise Linux and Ubuntu Server.
• Experience supporting large-scale, business-critical Linux environments.
• Knowledge of legacy RHEL versions, ideally RHEL 5.x through 8.x.
• Advanced Linux troubleshooting across kernels, services, packages, permissions, networking and performance.
• Experience with Veritas VCS clustering and Red Hat Resilient Storage/GFS2.
• Strong knowledge of enterprise file systems, including VXFS, ZFS, EXT3/4, XFS and UFS.
• Experience with volume management technologies, including SVM, VXVM and LVM.
• Working knowledge of SRDF and STAR storage replication.
• Experience supporting Linux infrastructure hosted on VMware.
• Understanding of CyberArk and SCCM compliance requirements.
• Strong Linux security knowledge, including auditing, logging, access controls and hardening.
• Experience configuring and troubleshooting LDAP server and client services.
• Strong networking knowledge, including TCP/IP, DNS, routing and firewalls.
• Understanding of container technologies and their interaction with Linux operating systems.
• Experience working within ITIL-based Incident, Problem, Change and Configuration Management processes.
• Strong analytical, troubleshooting, documentation and stakeholder communication skills.
• Ability to work independently and support complex technical investigations.

Due to the nature and urgency of this post, candidates holding or who have held high level security clearance in the past are most welcome to apply. Please note successful applicants will be required to be security cleared prior to appointment which can take a minimum 18 weeks. LA International is an award-winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance.

An award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over multiple years. We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience.