Network and Cyber Security Engineer

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Location: Stevenage
Job Description:

An exciting opportunity for a passionate Network Security Engineer to join a unique, multi-national Information Management function. Ideal candidates should be committed to protecting our critical systems and ensuring the integrity and security of our network infrastructure. Circa £50,000depending on experience+ shift allowance Dynamic (hybrid) working : 5 days per week on-site due to workload classification, working a 24/7 Shift Pattern Security Clearance : As a minimum and after offer stage, all successful candidates will need to undergo HMG Basic Personnel Security Standard checks (BPSS) and a Security Check (SC) clearance, which are managed by the MBDA Personnel Security Team. Company bonus : Up to £2,500 (based on company performance and will vary year to year) Pension : maximum total (employer and employee) contribution of up to 14% Overtime: opportunity for paid overtime Enhanced parental leave: offers up to 26 weeks for maternity, adoption and shared parental leave -enhancements are available for paternity leave, neonatal leave and fertility testing and treatments Facilities : Fantastic site facilities including subsidised meals, free car parking and much more Join our forward thinking team as a Network Security Engineer, where you will play a key role in safeguarding our organisations’ network infrastructure as part of the 24×7 Internal Security Response (ISR) team. The role will be involved in the optimisation of network security tools to remediate “purple team” highlighted areas identified for improvement. You will also have the opportunity to immerse your time into the standardisation of network tools. This is a dynamic opportunity to contribute to security initiatives, solve complex challenges, and have a direct impact on the overall resilience of our IT environment. If you are looking to leverage your technical skills in a values-led company that values innovation and diversity, this is the place to make an impact. Solid understanding of networking principles (TCP/IP, DNS, routing, switching, VLANS and load balancing) Demonstrable hands-on experience in next-gen firewalls and advancing security features like IPS/IDS, SSL decryption and deep packet inspection. Bluecoat, F5) and the ability to implement policies for content filtering, SSL inspection and network traffic monitoring. Understanding of network architectures and security zones (DMZ, internal networks). Proficient in monitoring technologies e.g. Understanding of cyber security capabilities and their integrations to networks infrastructure. Strong ability to interpret complex information via use of packet capture in order to identify malicious traffic in detail, revealing attacker behaviours like C2, exploitation, lateral movement, or data exfiltration. Experience with LDAP, and application traffic flow root cause analysis. Previous experience to identify root cause from (TBC for review – Demonstrable understanding of the OSI Reference Model and the network communication protocols, including but not limited to DNS, SSL, SMTP, FTP/S, LDAP/S. Demonstrable experience with Security Information Event Monitoring Tools and/or Network Packet Capture tools). We are proud of our employee-led networks, examples include: Gender Equality, Pride, Menopause Matters, Parents and Carers, Armed Forces, Ethnic Diversity, Neurodiversity, Disability and more Follow us on LinkedIn (MBDA), X Instagram (MBDA_UK) and Glassdoor or visit our MBDA Careers website for more information….

Posted: April 20th, 2026