Network Specialist

Network Specialist – Shoreham-by-Sea (Hybrid)

Must be willing to travel 2 days onsite to Shoreham-by-Sea and occasional travel to client sites.

Internal Job Level Reference: Senior Specialist

Focus Group is a rapidly growing £300m technology services provider, backed by Hg Capital and recently valued at $1bn. Supporting over 30,000 UK businesses, we’re investing heavily in top technical talent and we’re looking for a Senior Network Specialist to join our Networking & Security team.

Hands‑on position where you’ll take ownership of complex, multi‑site network and security projects end to end. Working in a hybrid setup from Shoreham, you’ll act as the technical specialist across SD‑WAN, SASE, firewalls, and core networking, delivering high‑quality solutions for a range of clients.

You’ll produce detailed designs and documentation, lead implementations, support delivery teams during key project phases, and work closely with Solution Architects to turn designs into real‑world solutions.

• Deep, proven expertise across firewall and security platforms (Forti Gate, Sonic Wall, Watch Guard, and/or Cisco – including centralised management and logging)
• Strong design and delivery experience on at least one major SD‑WAN platform (Cisco Catalyst SD‑WAN, Meraki SDWAN, Fortinet Secure SD‑WAN, or comparable)
• Practical experience delivering SSE or SASE solutions (FortiSASE, Cisco Secure Connect, Cisco Secure Access or Cloudflare One)
• Solid fundamentals across routing and switching, VLANs, BGP, OSPF, IPsec, QoS, DNS, DHCP, and wireless (Meraki, Cisco, Aruba, Unifi)
• A strong track record leading multi‑site network and security project delivery end to end
• The ability to produce clear, customer‑facing documentation and translate technical complexity into plain language
• A calm, methodical approach under pressure, with a genuine commitment to mentoring the engineers around you

Experience with Fortinet NSE 7+, cloud networking (Azure/AWS), or Zero Trust/ ZTNA solutions.

You’ll be part of a high‑performing technical team with real ownership, working on varied and interesting projects. We offer strong career development, support for certifications, and a genuinely collaborative environment.

We work hard to create an inclusive, collaborative and rewarding environment where you are inspired to achieve brilliant things and really make a difference to the future of our business.