3rd Line Infrastructure Engineer
Net Consulting is seeking an experienced and proactive 3rd Line Infrastructure Engineer to support and enhance enterprise infrastructure across secure environments. This role is ideal for professionals with deep technical expertise in container orchestration, networking, virtualisation, and enterprise monitoring and security platforms.
Based primarily at a client site in Corsham, Wiltshire, with additional travel to customer locations. You will be responsible for resolving complex infrastructure issues, mentoring junior engineers, and escalating critical matters to the Lead 3rd Line Engineer. You will work across technologies including Kubernetes, OpenShift, Dell servers, Cisco and Juniper networking, SAN, VMware, and security appliances such as Nexor data diodes and Endace packet probes.
You must be eligible for UK Security Check (SC) clearance, with the potential to progress to Developed Vetting (DV) clearance.
Responsibilities
* Provide advanced 3rd line support for:
* Kubernetes, K3s, OpenShift, Padman, Rancher
* Dell servers, Cisco firewalls, Juniper and Cisco switches
* Brocade fabric switches, SAN storage, VMware, VDI
* SolarWinds, Endace packet probes, Gigamon, Nexor data diodes
* ESXi and KVM Hypervisors
* Windows Server OS
* RedHat Enterprise Linux OS
Lead the resolution of complex incidents and problems escalated from Level 2
Escalate unresolved or critical issues to the Lead 3rd Line Engineer, providing detailed diagnostics and documentation
Collaborate with the Lead 3rd Line Engineer on infrastructure design, upgrades, and strategic improvements
Mentor and support Level 1 and 2 engineers, promoting knowledge sharing and skills development
Maintain system performance, availability, and security across all supported platforms
Contribute to automation, scripting, and infrastructure-as-code initiatives
Participate in change management, patching, and configuration control processes
Maintain accurate technical documentation and support records
Participate in on-call rotations and respond to high-priority incidents
Skills & Experience
Essential
Proven experience in a 3rd line infrastructure support or systems engineering role
* Strong hands-on experience with:
* Container platforms: Kubernetes, OpenShift, K3s, Podman, Rancher
* Networking: Cisco firewalls/switches, Juniper switches, Brocade fabrics
* Storage & Virtualisation: SAN, VMware ESXi, VDI
* Monitoring & Security: SolarWinds, Endace, Gigamon, Nexor
* Operating Systems: Windows Server, Linux
Strong diagnostic and troubleshooting skills across complex systems
Experience in secure environments and working with classified systems
Excellent communication skills for liaising with the Lead Engineer and wider teams
Eligible for UK SC clearance
Full UK Driving Licences
Desirable
* Experience with infrastructure automation (e.g., Ansible, Terraform)
* Scripting skills (e.g., PowerShell, Bash, Python)
* KVM Hypervisor experience
* Familiarity with ITIL processes and service management
* Exposure to MOD or defence sector environment
Person Specification
Integrity & Professionalism: Demonstrates honesty, ethical behaviour, and professionalism in all interactions, reflecting NCL’s commitment to transparency and trust
Customer Focus: Committed to delivering value and building long-term partnerships with clients by understanding their needs and exceeding expectations
Collaboration: Works effectively as part of a team, contributing to shared goals and supporting colleagues across departments
Adaptability: Thrives in a fast-paced, evolving environment and is able to manage changing priorities with resilience
Accountability: Takes ownership of tasks and decisions, showing initiative and responsibility in delivering high-quality outcomes
Curious and proactive in learning new technologies and staying current with cyber threats and security trends
Clear communicator, able to explain technical issues to both technical and non-technical audiences
Detail-oriented, with strong analytical and problem-solving skills
Committed to sustainability, showing awareness of environmental and social responsibility in the workplace
Health & Wellbeing Awareness: Values a positive work/life balance and contributes to a supportive and respectful working environment
Company Benefits
Competitive Salary
Workplace Benefits: Contributory Pension Scheme, Private Medical Insurance, Life Assurance, Critical Illness Cover, Health & Wellbeing
25 Days’ Annual Leave (in addition to Bank Holidays)
Performance Bonuses (Personal & Company)
Excellent Career Progression Opportunities
On-call/call-out allowance, where applicable