Job Description:

Location: London (100% On-site)

Salary: Up to £100,000 + 10% Bonus

Security Clearance: Active DV Clearance required (10+ years UK residency essential)

We are seeking a Network Engineer to join a global security practice delivering mission-critical infrastructure projects. This role directly supports the safety and resilience of critical national infrastructure and global defense capabilities.

Working as part of a high-performing engineering practice, you will be responsible for designing, building, testing, validating, and maintaining secure network architecture across enterprise and data center environments.

• Network Infrastructure Management: Accountable for system design, build, testing, validation, maintenance, and support across all network components.

• Technology Implementation: Deploy new network technologies supporting enterprise and remote site connectivity in line with strategic customer requirements.

• Standards & Hardware: Maintain standards for global networks (wireless, LAN, SD-WAN) and manage physical/virtual hardware setups (routers, switches, firewalls, and monitoring tools).

• Network Security: Implement high-grade network security protocols and manage firewall/IDS/IPS configurations.

• Routing & Protocols: Deep experience with enterprise/operator-scale routing design using protocols such as OSPF, IS-IS, BGP, LDP, or RSVP.

• LAN & Switching: Strong knowledge of LAN switching in small-to-medium enterprise and data center environments (e.g., RSTP/MSTP, LAG, MC-LAG, SPB, first-hop security).

• Network Security: Practical expertise implementing network security standards, including MACSEC, IPSEC, and 802.1x.

• Firewalls & Inspection: Hands-on experience with security design, firewall management, and IDS/IPS configuration.

• Must hold active Developed Vetting (DV) security clearance.

• Competitive base salary (up to £100,000 dependent on experience)

• 10% target annual bonus

• Outstanding pension scheme

• Equalized family leave

• 2 weeks paid carer's leave & holiday purchase scheme

*Rates depend on experience and client requirements