Lead Network Engineer (DV)

  • Pearson Whiffin Recruitment Ltd
  • Piccotts End, Hertfordshire
  • 08/04/2026
Contractor Information Technology Telecommunications Cisco

Job Description

Lead Network Engineer (DV Cleared)

Security Clearance: Must hold active DV Clearance

We are seeking an experienced Lead Network Engineer to join a high-performing team delivering critical infrastructure solutions within a secure environment. This is a senior, hands-on role suited to an individual with deep technical expertise and strong leadership capability.

Key Responsibilities

  • Lead the design, implementation, and support of secure network solutions
  • Produce low-level designs (LLD) to a production-ready standard
  • Act as the technical authority across network infrastructure and security domains
  • Own and drive complex delivery workstreams within secure programmes
  • Provide mentoring and technical leadership to engineering teams
  • Ensure all solutions meet stringent security and compliance requirements

Required Skills & Experience

  • Active DV Clearance (essential)
  • Strong expertise in Cisco networking technologies (routing, switching, firewalls)
  • Proven experience with F5 (LTM, GTM, ASM desirable)
  • Solid understanding of cryptographic technologies and secure communications
  • Extensive experience producing Low-Level Designs (LLD) for production environments
  • Demonstrable experience working in highly secure or classified environments
  • Strong troubleshooting and problem-solving capability across complex networks