Senior Cyber Security Engineer

We’re building the UK's next generation engineering powerhouse, providing critical technology that strengthens national security and resilience.

We specialise in turning advances in sensing, AI, and communications into operational capability for the edge, where connectivity may be degraded or denied. Our work focuses on accelerating the deployment of technology, improving decision-making for frontline teams, and protecting people and critical assets in demanding environments.

Headquartered in Bristol, Rowden employs around 200 people and operates over 20,000 square feet of engineering and manufacturing facilities. We have a growing international footprint and are one of Europe’s fastest-growing engineering businesses.

About the role

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.

Your focus will span both strategic and tactical aspects of security engineering. At a strategic level, you’ll contribute to high-level design and planning across areas such as secure network architecture, identity management, and cloud security. At a tactical level, you’ll be hands-on with implementation, working directly with systems, tools, and configurations to apply and validate security controls, troubleshoot issues, and support secure delivery. You’ll collaborate with the wider engineering community to ensure agreed controls are effectively embedded, and that all systems are resilient, compliant, and aligned with current security standards.

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.

More information about security clearance is available here: https://www.gov.uk/government/publications/united-kingdom-security-vetting-clearance-levels

About you

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:

We are committed to building a flexible, inclusive, and enabling company. Our aim is to create a diverse team of talented people with unique skills, experience, and backgrounds, so please apply and come as you are!

We also recognise the importance of flexible working and support this wherever we can. We typically operate a flexible, hybrid-working model, with an average 3 days in the office each week (dependent on the role). We welcome the opportunity to discuss flexibility, part-time working requirements and/or workplace adjustments with all our applicants.

Rowden is a Disability Confident Committed company, and we actively encourage people with disabilities and health conditions to apply for our roles. Please let us know your requirements early on so that we can make sure you have everything you need up front to help make the recruitment process and experience as easy as possible.

Finally, if you feel that you don’t meet all the criteria included above but have transferable skills and relevant experience, we’d still love to hear from you!