INFRASTRUCTURE ENGINEER

G4S; Cheltenham; On-site; GBP 35,000 - 50,000; Full time

Job summary

A security services provider is seeking a Mid-Senior level Infrastructure Engineer in Cheltenham. The role involves providing technical support for server infrastructure and LAN/WAN networks. Key responsibilities include troubleshooting complex issues, maintaining systems, and ensuring adherence to security policies. Benefits include a Golden Hello, annual retention bonus, holiday allowances, and a pension scheme.

Benefits

2.5% Golden Hello payment

Up to £2,000 annual retention bonus

25 days holiday plus bank holidays

Training and development

Company pension scheme

G4S Life Assurance Scheme

Subsidised healthcare plan

24/7 health support

Qualifications

• Strong troubleshooting and problem-solving skills across diverse systems.
• Experience in an IT infrastructure role is essential.

Responsibilities

• Investigate and resolve complex technical problems that require advanced support.
• Maintain and optimise server, network, and storage systems.
• Manage network security and system performance.

Skills

Understanding of Firewalls

Networking technologies

Load Balancers

Troubleshooting skills

PowerShell scripting

Linux administration

SAN storage support

Virtualisation Technologies

NetApp storage management

Tools

Microsoft Active Directory

Windows Server OS

DNS

DHCP

SCCM

VMware/Hyper-V

Job description

Overview

Join to apply for the INFRASTRUCTURE ENGINEER role at G4S.

G4S Facilities Management are recruiting a 3rd Line Infrastructure Engineer on a full-time, permanent basis based in Cheltenham to provide on-site technical support for server infrastructure and LAN/WAN networks.

Responsibilities

• Investigate, diagnose, and resolve complex technical problems that 1st or 2nd Line Support cannot handle.
• Troubleshoot and resolve high-level networking problems, analyse and resolve system hardware defects, ensuring system reliability and performance.
• Maintain and optimise the organisation's servers, networks, virtualised environments (Hyper-V, VMware ESXi), storage systems (SAN/NAS), and other infrastructure components.
• Maintain and manage network security, performance, monitoring, and optimisation of our systems.
• Log all calls on the call logging system and maintain complete documentation.
• Support IT teams with advanced technical expertise, from safeguarding to network enhancements.
• Work with IT colleagues to ensure backups of all business systems are fully managed, maintained, documented and disaster recovery procedures are regularly reviewed and tested.
• Adhere to all Group Information Security policies and procedures in all aspects of the job role.
• Build and maintain strong relationships with internal and external stakeholders and ensure service excellence is delivered at all times.
• Provide on-call services as part of a shift rotation pattern.

Essential qualifications

• An understanding of Firewalls, Networking technologies, and Load Balancers.
• Understanding network protocols (TCP/IP, BGP, OSPF, MPLS) and security best practices.
• Strong troubleshooting and problem-solving skills across diverse systems, infrastructure, and architecture, including Microsoft AD, Group Policy, Windows Desktop & Windows Server OS (2012, 2016, 2022), DNS, DHCP, SCCM & MECM.
• PowerShell scripting, Linux administration & SAN storage support.
• Virtualisation Technologies, especially VMware/Hyper-V.
• Experience in NetApp storage systems and management.
• Previous experience in an IT infrastructure role.

Benefits

• 2.5% Golden Hello payment on commencement of employment.
• Up to £2,000 annual retention bonus subject to eligibility criteria (pro-rata for part time employees).
• 25 days holiday plus bank holidays.
• Progression, training and development catered to you.
• Refer A Friend incentives.
• Company pension scheme with employer contributions.
• G4S Life Assurance Scheme.
• Subsidised healthcare plan.
• Charity work—Match-IT and Payroll Giving.
• Confidential Counselling Services.
• 24/7 support specialising in health and medical.
• Discounts on high street shops and brands.

Please be aware that due to the nature of the business, security clearance to a high government level will be required.

Job details

• Employment type: Full-time
• Location: Cheltenham, Gloucestershire
• Working Hours: Permanent, Full Time, 40 hours per week, Monday to Friday

Seniority level: Mid-Senior level