3rd Line Infrastructure Engineer Lead

2 days ago Be among the first 25 applicants AboutNet Consulting is seeking a highly experienced and technically proficient 3rd Line Lead Infrastructure Engineer to lead the delivery and support of complex infrastructure solutions across secure environments. This role is ideal for a senior engineer with deep expertise in container orchestration, networking, virtualisation, and enterprise monitoring and security platforms, who is ready to take ownership of technical leadership and mentoring responsibilities. AboutNet Consulting is seeking a highly experienced and technically proficient 3rd Line Lead Infrastructure Engineer to lead the delivery and support of complex infrastructure solutions across secure environments. This role is ideal for a senior engineer with deep expertise in container orchestration, networking, virtualisation, and enterprise monitoring and security platforms, who is ready to take ownership of technical leadership and mentoring responsibilities.Based primarily at a client site in Corsham, Wiltshire, with travel to other customer locations. You will lead a team of 3rd line engineers, act as the final escalation point for critical issues, and work closely with architects and stakeholders to shape infrastructure strategy and delivery.You must be eligible for UK Security Check (SC) clearance, with the potential to progress to Developed Vetting (DV) clearance.ResponsibilitiesLead the 3rd Line Infrastructure Support Team, providing technical direction, mentoring, and oversightAct as the final escalation point for complex infrastructure issues across: Kubernetes, K3s, OpenShift, Podman, 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 Collaborate with architects and project teams to design and implement robust, scalable infrastructure solutions Own and drive root cause analysis for major incidents and recurring problems Ensure documentation, standards, and procedures are maintained and continuously improved Champion automation, infrastructure-as-code, and continuous improvement initiatives Represent the infrastructure team in technical governance, change advisory boards, and stakeholder meetings Support capacity planning, performance tuning, and lifecycle management of infrastructure assets Participate in and lead on-call rotations for high-priority incidentsEssentialSkills & ExperienceExtensive experience in a 3rd line infrastructure support or senior systems engineering roleProven leadership experience, including mentoring and team coordinationDeep technical expertise in: Container platforms: Kubernetes, OpenShift, K3s, Podman, Rancher Networking: Cisco firewalls/switches, Juniper switches, Brocade fabrics Storage & Virtualisation: SAN, VMware ESXi, VDI, KVM Hypervisor Monitoring & Security: SolarWinds, Endace, Gigamon, Nexor Operating Systems: Windows Server, LinuxStrong diagnostic and troubleshooting skills across complex, multi-vendor environmentsExcellent communication and stakeholder engagement skillsEligible for UK SC clearanceFull UK Driving LicenceDesirableExperience with infrastructure automation (e.g., Ansible, Terraform)Scripting skills (e.g., PowerShell, Bash, Python)Familiarity with ITIL processes and secure government environmentsExposure to MOD or defence sector standards and compliancePerson SpecificationIntegrity & Professionalism: Demonstrates honesty, ethical behaviour, and professionalism in all interactions, reflecting NCL’s commitment to transparency and trustCustomer Focus: Committed to delivering value and building long-term partnerships with clients by understanding their needs and exceeding expectationsCollaboration: Works effectively as part of a team, contributing to shared goals and supporting colleagues across departmentsAdaptability: Thrives in a fast-paced, evolving environment and is able to manage changing priorities with resilienceAccountability: Takes ownership of tasks and decisions, showing initiative and responsibility in delivering high-quality outcomesCurious and proactive in learning new technologies and staying current with cyber threats and security trendsClear communicator, able to explain technical issues to both technical and non-technical audiencesDetail-oriented, with strong analytical and problem-solving skillsCommitted to sustainability, showing awareness of environmental and social responsibility in the workplaceHealth & Wellbeing Awareness: Values a positive work/life balance and contributes to a supportive and respectful working environmentCompany BenefitsCompetitive SalaryWorkplace Benefits: Contributory Pension Scheme, Private Medical Insurance, Life Assurance, Critical Illness Cover, Health & Wellbeing25 Days’ Annual Leave (in addition to Bank Holidays)Performance Bonuses (Personal & Company)Excellent Career Progression OpportunitiesOn-call/call-out allowance, where applicableNice-to-have skillsKubernetes OpenShift VMWare VDI ESXi Ansible Terraform Powershell Bash Python Hawthorn, England, United KingdomWork experienceSystem Engineer DevOps Solutions ArchitectLanguagesEnglishSeniority levelSeniority level Mid-Senior level Employment typeEmployment type Full-time Job functionJob function Information Technology Industries Technology, Information and Internet Referrals increase your chances of interviewing at TieTalent by 2x Get notified about new Lead Infrastructure Engineer jobs inHawthorn, England, United Kingdom . 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Created: 2025-07-25