> Markdown version of [/jobs/ext/102878-network-security-engineer](https://www.wearedevelopers.com/jobs/ext/102878-network-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Network & Security Engineer

- **Company:** Hays plc
- **Location:** Belfast, UK
- **Experience:** Expert
- **Salary:** £65,000.0
- **Contract:** Permanent contract
- **Skills:** Wireless LAN, Microsoft Azure, Cisco PIX, Cloud Computing Security, Dynamic Multipoint Virtual Private Networks, Intrusion Detection Systems, Multi-protocol Systems, Network Security, Packet Analyzer, Tcpdump, Wireshark, Wireless LAN Controllers, Identity Services Engine, Firewalls (Computer Science), Fortinet, Firepower, Cisco
- **Published:** May 23, 2026
- **Apply:** https://www.careerjet.co.uk/jobad/gbdcbce07f1fd84a50b2859440541878d5

## About the Role

* Ideally 8+ years in networking, with 5+ years focused on security.
 * Expertise in Cisco ASA/Firepower/FTD, ISE, Cisco+ Secure Connect, WLAN Controllers, DMVPN/MPLS, SDWAN, IDS/IPS
 * Strong Azure networking and cloud security skills
 * Advanced packet capture skills (Wireshark, TCPdump)
 * Excellent communication and documentation abilities
 * Certifications such as CCNP/CCIE, Fortinet NSE, CISSP (preferred)
 * Experience in pharma/manufacturing/OT environments is advantageous

## Description

Are you an experienced Network & Security Engineer looking to lead cutting-edge projects in a global environment? This is an exciting opportunity to join a forward-thinking organisation driving network modernisation and OT segmentation.
Your new role
You will design and implement secure network architectures, managing core Cisco technologies such as ASA firewalls, Firepower Threat Defense (FTD)/NGFW, Identity Services Engine (ISE) for NAC, Cisco+ Secure Connect, and Wireless LAN Controllers. You'll optimise DMVPN/MPLS for remote sites, evaluate SDWAN solutions, and enforce zero trust policies.
As a subject matter expert, you'll lead OT segmentation projects, troubleshoot complex issues, and mentor junior engineers. Collaboration with global teams and compliance with GDPR and data privacy standards will be key.


## Related Videos

- [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team)
- [WeAreDevelopers LIVE - Back to CODE100](https://www.wearedevelopers.com/videos/1909-wearedevelopers-live-back-to-code100)
- [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure)
- [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right)
- [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy)
- [Small, Secure, Interconnected: The next Internet Protocol](https://www.wearedevelopers.com/videos/100062-small-secure-interconnected-the-next-internet-protocol)

## Related Articles

- [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking)
- [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)
- [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)
- [IT Salaries in UK](https://www.wearedevelopers.com/magazine/288-it-salaries-in-uk)
- [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)
- [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)