Senior Infrastructure Engineer

Applause IT Recruitment Ltd; England; On-site; GBP 47,000 - 55,000; Full time

Job summary

A leading tech recruiting firm seeks a Senior Infrastructure Engineer in Birmingham. You will manage and deploy secure LAN, WAN, and WLAN networks, ensuring reliable IT infrastructure support. Experience in networking and firewall configuration is essential, along with DV clearance eligibility. Join a forward-thinking organisation to contribute your expertise in a high-security environment.

Benefits

Comprehensive benefits package

Qualifications

• 5+ years in a Network Engineer or Infrastructure Engineer role.
• Strong knowledge of TCP/IP protocols and networking concepts.
• Experience with firewall configuration and VPN support.

Responsibilities

• Deploy and manage secure LAN, WAN, and WLAN networks.
• Troubleshoot networking issues and document configurations.
• Mentor junior staff and participate in incident response.

Skills

TCP/IP knowledge

VLAN expertise

BGP experience

Firewall configuration (Palo Alto, Cisco ASA, FortiGate)

VPN setup support

Documentation skills

Team leadership

Tools

Wireshark

SNMP

Job description

Senior Infrastructure Engineer - Network Infrastructure Firewalls DV Clearable On-Site

Location: East Birmingham (Full-Time, On-Site)

Salary: 47,000 - 55,000 + Benefits

Are you an experienced Infrastructure Engineer with strong networking expertise and a background in secure environments? This is a full-time, on-site role based in Marston Green, Birmingham, offering the opportunity to support mission-critical IT infrastructure within a security-sensitive organisation.

As a Senior Infrastructure Engineer, you will be responsible for delivering and managing secure LAN, WAN, and WLAN networks, acting as a key escalation point for troubleshooting, and providing mentoring to junior engineers. Candidates must be eligible for DV (Developed Vetting) clearance - British nationals with long‑term UK residency only.

Key Responsibilities

• Deploy and manage LAN, WAN, and WLAN networks for secure enterprise environments
• Troubleshoot complex Layer 2 and Layer 3 networking issues
• Document network topologies and configurations
• Monitor and enhance performance across network infrastructure
• Install and maintain firewalls - Palo Alto, Cisco ASA (AnyConnect), FortiGate
• Manage VPNs, IPSEC tunnels, and certificate‑based authentication
• Contribute to AD design and secure environment management
• Mentor junior staff and act as a key escalation point
• Participate in incident response and root cause analysis

Required Skills & Experience

• 5+ years in a Network Engineer or Infrastructure Engineer role
• Strong knowledge of TCP/IP, VLAN, VXLAN, EVPN, VPC, MLAG
• Deep experience with BGP, OSPF, EIGRP routing protocols
• Firewall configuration experience: Palo Alto, Cisco ASA, FortiGate
• VPN setup and support (IPSEC, remote access)
• Familiarity with Wireshark, SNMP, and monitoring tools
• Cross‑platform support (Windows, Linux, macOS)
• Microsoft Active Directory design and maintenance experience
• Strong documentation, communication, and team leadership skills
• Desirable: CCNA/CCNP certifications
• Must be DV clearable

If you're ready to work in a high‑trust, high‑security environment and bring your networking expertise to a forward‑thinking organisation, click apply now to learn more.