Network Design Engineer

Job Title: Senior Network Design Engineer
Location: Basingstoke (Hybrid)
Salary: £55,000 + £6,000 car allowance + 10% bonus
Security Clearance: Must be eligible for SC clearance

Join a Growing Team Delivering Cutting-Edge Network Solutions in Defence and National Security

Are you an experienced Network Design Engineer looking for a hands-on role in a highly secure, fast-paced environment? Our client are expanding their expert team and seeking a Senior Network Design Engineer to contribute to exciting new project delivery work within the defence and national security sector.

This is not a support role – youll be directly involved in designing, configuring, and delivering secure networks for new business and contracted projects.

What Youll Be Doing:

• Collaborating with engineers and designers to deliver network solutions for secure environments.
• Developing, updating, and maintaining High-Level Designs (HLDs) and Low-Level Designs (LLDs).
• Hands-on configuration of network equipment and security devices.
• Implementing small-to-medium LLD updates (e.g., firewall/switch changes).
• Engaging with stakeholders to understand technical requirements and align designs accordingly.
• Supporting the full project lifecycle from requirements gathering to operational handover.
What Were Looking For:
• 5+ years experience in network engineering or support with strong design and delivery exposure.
• Solid experience with Juniper/Cisco technologies
• Understanding of network security, including firewalls, IDS/IPS, and VPNs.
• Comfortable with a multi-vendor environment – adaptable and eager to learn new technologies.
• Proficiency with network design tools (e.g., Visio) and documentation standards.
• Good grasp of virtualisation and infrastructure – experience with physical and virtual environments.
• Ability to communicate effectively across technical and non-technical teams.
• Eligible for SC clearance (must obtain DV during probation – support will be provided).

Desirable Skills:
• Certifications: CCNA, CCNP, JNCIA, or equivalent.
• Experience with:
o F5, Cisco Secure Firewall, Gigamon
o Network monitoring tools: SolarWinds, Nagios
o Routing protocols, VLANs, VRFs, and security zones
o Performance and capacity testing of cyber tools
• Familiarity with virtualisation platforms: VMware, KVM, Xen, Proxmox, etc.

Why Join?
• Work on high-impact national security projects.
• Be part of a collaborative team of 5+ engineers and designers.
• Receive training and support across Cisco and Juniper technologies.
• Opportunities for career development and progression.
• Competitive compensation package with performance incentives.

Job Title: Senior Network Design Engineer
Location: Basingstoke (Hybrid)
Salary: £55,000 + £6,000 car allowance + 10% bonus
Security Clearance: Must be eligible for SC clearance