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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Cyber Security Engineer - **Company:** Rowden - **Location:** Bristol, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Cloud Computing, Cloud Computing Security, Cyber Security, Integrated Development Environments, Javaserver Pages, Network Security, Mod Security, Software Engineering, Trusted Systems, Software Vulnerability Management, C4i, SC Clearance, OPNET (Software) - **Published:** September 2, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=bcca9cd9a87c4d10 ## About the Role The ideal candidate will bring knowledge of threat modelling, secure system design, and compliance frameworks including NIST, ISO 27001, and DefStan 05-139. We understand that even experienced professionals may not have expertise across every aspect of the role. If you bring relevant experience, sound technical judgement, and a passion for delivering secure solutions, we encourage you to apply. This role requires a minimum of 3 days per week on-site at our Bristol HQ with occasional travel to customer sites. Candidates must be eligible for SC clearance. Due to the nature of this role and the sensitivity of the work involved, applications are restricted to sole UK nationals., * Proven experience in cyber security engineering, ideally within defence, government, or critical infrastructure environments. * Strong understanding of Secure by Design, risk management, and MOD security standards. * Hands-on experience with cloud security, software assurance, and network security controls. * Familiarity with security accreditation processes (e.g., RMADS, JSP 440/604, NCSC guidance). * Ability to interpret and deliver against SOWs and SORs, working collaboratively with external assurance providers. * Excellent communication skills, with the ability to explain complex security concepts to technical and non-technical stakeholders. * Strong analytical, documentation, and problem-solving skills. Desirable * Experience of tactical networked C4I systems, including Opnet. * Knowledge of multi-domain systems and cross-domain solutions. * Understanding of LOS & BLOS communication systems. * Awareness of UK Government LETacCIS programmes and systems such as DSA, Morpheus, Trinity and Bowman., The ideal candidate will have a strong balance of technical skills and experience, and the behavioural competencies that we believe are key to success in the role are as follows: * Extensive experience in software development environments and infrastructure delivery, with a solid engineering foundation, ideally in software engineering. * In-depth knowledge of Secure by Design principles and their application in secure systems architecture. * Proficiency in securing cloud infrastructure, software, far edge networking, and integrated systems. * Strong analytical and risk management skills, with a focus on continuous security improvement. * Ability to work within cross-functional teams to achieve secure, compliant solutions. ## Description As a Senior Cyber Security Engineer at Rowden, you'll collaborate closely with the wider engineering team to design, implement, and maintain secure systems and infrastructure. You will be embedded within a delivery team(s) and work closely with the Technical Security Lead and external partners to assess risks, define security requirements, and ensure technical solutions are pragmatic, proportionate, and aligned with both business and customer needs., As a Senior Cyber Security Engineer you will be responsible for: * Implementing and maintaining system security controls and operating procedures, ensuring alignment with MOD and Rowden standards. * Supporting the delivery of cyber security assurance activities, including documentation, testing, and reporting. * Collaborating with project teams and external partners to deliver on agreed security deliverables and schedules. * Participating in security risk assessments, threat modelling, and vulnerability management for cloud, software, and far-edge deployments. * Contributing to the security accreditation process, preparing evidence, managing asset registers and supporting audits as required. * Assisting in the continuous improvement of security processes, incident response, and compliance monitoring. * Engaging with supply chain partners to verify and assure security requirements throughout the capability lifecycle. * Providing technical advice and hands-on support to engineering teams, acting as a security champion within agile delivery teams. * Representing Rowden in internal and external security forums. ## Related Videos - [WeAreDevelopers LIVE - "Fun and games - and all that comes with it", Back to BASIC & more](https://www.wearedevelopers.com/videos/1719-wearedevelopers-live-fun-and-games-and-all-that-comes-with-it-back-to-basic-more) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [You can’t hack what you can’t see](https://www.wearedevelopers.com/videos/41-you-can-t-hack-what-you-can-t-see) ## Related Articles - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Events like RSAC Get You CISOs. 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