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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Security Engineer - **Company:** MBDA S.A.S. - **Location:** Stevenage, UK (Remote available) - **Salary:** £50,000.0 - **Contract:** Permanent contract - **Skills:** Cyber Security, Computer Networks, System Configuration, Deep Packet Inspection, Domain Name System (DNS), Multi-Factor Authentication, Monitoring of Systems, Internet Protocol Security (IP SEC), Intrusion Detection Systems, Network Packet, Virtual Private Networks (VPN), OSI Models, Lightweight Directory Access Protocols (LDAP), Simple Mail Transfer Protocols, Nagios, Network Architecture, Networking Basics, Routing, Network Service, Packet Analyzer, Paessler Router Traffic Grapher, TCP/IP, Virtual Local Area Networks, Transport Layer Security, File Transfer Protocol (FTP), Load Balancing, Web Filtering, Splunk, Cisco - **Published:** September 29, 2026 - **Apply:** https://mbda.wd3.myworkdayjobs.com/MBDA-UK/job/Stevenage/Network-Security-Engineer--SOC-_R29549/apply ## About the Role * Solid understanding of networking principles (TCP/IP, DNS, routing, switching, VLANS and load balancing) * Strong expertise in configuring, maintaining and troubleshooting firewalls e.g. Cisco, Checkpoint, Palo Alto * Demonstrable hands-on experience in next-gen firewalls and advancing security features like IPS/IDS, SSL decryption and deep packet inspection. * Proven experience in managing secure proxy solutions (e.g. Bluecoat, F5) and the ability to implement policies for content filtering, SSL inspection and network traffic monitoring. * In depth knowledge of security protocols such as IPSec, SSL / TLS, VPNs and two factor authentication. * Understanding of network architectures and security zones (DMZ, internal networks). * Proficient in monitoring technologies e.g. PRTG, Nagios., * Understanding of cyber security capabilities and their integrations to networks infrastructure. * Existing knowledge of / aptitude to learn Darktrace Antigena and Respond, Splunk ES or Log Rhythm tools. * 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. * Proven ability to review SOC alerting in collaboration with SOC analysts to effectively triage and manage Tier 1 SOC alerts to the appropriate outcome. * 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, HTTP/S, SSL, SMTP, FTP/S, LDAP/S. Demonstrable experience with Security Information Event Monitoring Tools and/or Network Packet Capture tools). ## Description 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 24x7 Internal Security Response (ISR) team. When not involved in incident response and triage activity with the SOC team, you will be responsible for designing, implementing and maintaining robust security solutions to protect against evolving threats. Collaborating with cross-functional teams, you will work on implementing changes securely, identifying vulnerabilities, managing security incidents and ensuring compliance with industry best practices. 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 passionate about security and proactive defence, this role is the perfect fit. 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., Employees receive 25 days of paid annual leave per calendar year, in addition to all statutory and public holidays. After 5, 10 and 15 years of service, an additional day of annual leave is added to your allowance at each of these milestones. You can also enjoy more time off by purchasing up to an additional five days holiday through payroll., We trust our people to agree, within their teams, where and when they can be most effective. Our Dynamic Working policies allow individuals great levels of flexibility around the hours they work and where they work. Depending on your role and function, this may include options for paid overtime, dynamic leave (time in lieu) and more., Our MBDA Retirement Savings Plan is a 'Defined Contribution' plan in the Mercer Master Trust. The standard contributions are 4% of an employee's base salary and 6% employer contributions. You can increase both employee and employer contributions by up to 2%. Financial Awareness - Employees have access to free financial webinars hosted throughout the year, along with access to a financial education website which provides plenty of useful hints, tips and guidance on managing financial wellness. Share Incentive Plan - Acquire shares in our UK Shareholder, BAE Systems PLC, the scheme is tax efficient on shares purchased. Mortgage Advice - As part of our financial wellbeing initiative employees can access free of charge mortgage advice and webinars. Season Ticket Loan - Employees can borrow the value of public transport season ticket for bus or train journeys to and from work and spread the cost over 12 months. Critical Illness - To help reduce the financial impact after being diagnosed with a critical illness, employees receive a tax-free lump sum payment that can be used for any purpose including covering medical expenses, adjustments to lifestyle and more., Employee Assistance Programme - The Employee Assistance Programme is free, independent, confidential and is available 24 hours a day/365 days a year. Employees have access to short-term counselling (which includes up to 8 structured face to face, telephone or virtual sessions). Voluntary Private Medical Insurance - Private Medical Insurance offers three healthcare plans to suit your individual requirements for you and your family. Funded Private Medical Insurance - Eligible employees (Grade C & Above) are enrolled as standard into the company funded Private Medical Insurance benefit. Dental Insurance - The Dental Insurance benefit provides the option to claim cash back on everyday dental expenses such as, minor treatments, routine examinations, restorative treatment and more. There are six levels of cover available, with each level providing increased claim limits. Healthcare Cash Plan - The Healthcare Cash Plan benefit provides the option to claim cash back on everyday healthcare expenses such as optical, dental, health and wellbeing and more. There are six levels of cover available, with each level providing increased claim limits. Healthcare and Leisure - The Healthcare and Leisure benefit provides the option to claim cash back on everyday healthcare expenses such as medical fees, dentist fees, opticians and also provides access to special deals and concessions on sporting and recreational facilities. ## Related Videos - [Cyber Sleuth: Finding Hidden Connections in Cyber Data](https://www.wearedevelopers.com/videos/893-cyber-sleuth-finding-hidden-connections-in-cyber-data) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Our journey with Spring Boot in a microservice architecture](https://www.wearedevelopers.com/videos/511-our-journey-with-spring-boot-in-a-microservice-architecture) - [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) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) ## Related Articles - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Understanding and Mitigating Common Web Vulnerabilities](https://www.wearedevelopers.com/magazine/565-understanding-and-mitigating-common-web-vulnerabilities)