Jobs / G4S
3RD LINE INFRASTRUCTURE ENGINEER
G4S · Cheltenham, ENG, United Kingdom
Cheltenham, ENG, United KingdomFull time48,000-52,000 GBP/yearlyOnsite
Remuneration
2.5% Golden Hello payment; £2,000 annual retention bonus
Location
Cheltenham, ENG, United Kingdom
Visa sponsorship
Not specified
Job summary
Provides on-site third-line technical support for server infrastructure and LAN/WAN networks, resolving complex issues and maintaining reliable, secure systems. The role covers Windows and Linux administration, networking protocols, VMware and Hyper-V virtualisation, NetApp and SAN/NAS storage, backups, and disaster recovery. It also includes infrastructure monitoring, documentation, support for IT teams, and participation in an on-call shift rotation.
Benefits
25 days of annual leave plus bank holidaysTraining and developmentReferral incentivesEmployer-contributed pensionLife assuranceSubsidised healthcare planEmployee assistance and confidential counsellingHealth and medical supportRetail and travel discounts
Qualifications
- Understanding of firewalls, networking technologies, and load balancers.
- Knowledge of TCP/IP, BGP, OSPF, MPLS, and security best practices.
- Troubleshooting skills across systems, infrastructure, and architecture.
- Experience with Active Directory, Group Policy, Windows desktop and server operating systems, DNS, DHCP, SCCM, and MECM.
- PowerShell scripting, Linux administration, and SAN storage support.
- Experience with virtualisation technologies, particularly VMware and Hyper-V.
- Experience managing NetApp storage systems.
- Previous experience in an IT infrastructure role.
Responsibilities
- Investigate, diagnose, and resolve complex issues escalated beyond first- and second-line support.
- Troubleshoot networking problems and hardware defects to maintain system reliability and performance.
- Maintain and optimise servers, networks, virtualised environments, storage, and other infrastructure.
- Manage network security, performance, monitoring, and optimisation.
- Log support calls and maintain complete documentation.
- Provide advanced technical support to IT teams, including safeguarding and network enhancements.
- Manage, maintain, and document system backups; regularly review and test disaster recovery procedures.
- Follow information security policies and procedures.
- Maintain relationships with internal and external stakeholders and deliver service support.
- Provide on-call support as part of a shift rotation.
Skills
LinuxPowerShellVMwareWindowsWindows Server
Work schedule
40 hours per weekMonday to FridayOn-call shift rotation
Industry
Facilities management
Security clearance
High-level government security clearance required
Relocation
No