Senior Network Security Engineer Up to £50,000 + Bonus | Hybrid (3 Days Office / 2 WFH) | Northampton Are you a skilled Network Security Engineer looking to take the next step in your career? Join a fast-growing Systems Integrator & Managed Service Provider that delivers cutting-edge solutions to clients across finance, public sector, legal, and nationwide retail. This is your chance to be part of a high-performing technical team where you’ll work across diverse environments, tackle complex networking challenges, and play a key role in strengthening customers’ security posture. Why You’ll Love This Role ✔ Work on 3rd-line network & security support across enterprise-scale environments ✔ Exposure to next-generation firewalling, large-scale routing/switching, cloud networking & automation ✔ Real career progression into specialist or consultancy paths ✔ Join a team experiencing significant investment and growth What You’ll Be Doing \* Providing 3rd-line network & security support, acting as an escalation point for challenging issues \* Delivering both BAU support and project work across customer sites and internal operations \* Proactively monitoring and maintaining managed systems \* Owning and resolving complex technical problems using tools such as Wireshark, NetFlow analysis, and monitoring platforms \* Managing patching, feature updates, change controls, and documentation \* Mentoring service desk engineers to uplift overall capability Your Network & Security Expertise We’re looking for someone with strong experience in an MSP or enterprise IT environment, with deep knowledge across: Networking \* Layer 2 & 3 routing and switching \* OSPF & BGP – essential \* VXLAN & Cisco ACI \* Dual stack IPv4/IPv6 \* Wireless: Aruba, Cisco Meraki \* Azure & AWS networking \* VMware / Hyper-V environments Security \* FortiGate firewalls with full UTM stack (Web Filtering, Application Control, IPS/IDS, SD-WAN) \* FortiManager & FortiAnalyzer \* SIEM technologies (Darktrace, Reveal(x)) \* Infrastructure monitoring (PRTG preferred) Automation & Tooling \* Python / PowerShell scripting \* Terraform for automation \* ITSM processes aligned to ITIL framework Certifications (Desirable but not essential) \* Cisco CCNP (minimum level of knowledge expected) \* Fortinet / Aruba / PRTG vendor certifications \* ITIL Foundation What’s On Offer \* Up to £50,000 base salary \* Annual performance bonus \* Hybrid working (3 days on-site, 2 days WFH) \* Pension, death-in-service, onsite parking \* Superb office environment with staff perks, snacks & social events Ready to Level Up Your Network Security Career? If you’re passionate about advanced networking, security technologies, and working in a fast-paced MSP environment, we want to hear from you. Apply now and join a team where your expertise truly makes an impact