> Markdown version of [/jobs/ext/4494100-principal-lead-systems-engineer-security](https://www.wearedevelopers.com/jobs/ext/4494100-principal-lead-systems-engineer-security). 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). --- # Principal/Lead Systems Engineer (Security) - **Company:** Hackajob Ltd - **Location:** Cornholme, UK (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, Firmware, Software Requirements Analysis, Systems Architecture - **Published:** October 31, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/principallead-systems-engineer-security/54239392 ## About the Role Experience in the development of military and/or civil communication systems. Experience in security protocols such as authentication and encryption Ability to produce detailed technical reports. Graduate degree in relevant engineering, mathematics or related scientific discipline. Ideally Knowledge of embedded system development. Knowledge of firmware development. Knowledge of UK high grade requirements. This is not an exhaustive list, and we are keen to hear from you even if you might not have experience in all the above. The most important skill is a good attitude and willingness to learn. Security Clearance Successful candidates will be UK nationals. This role is subject to pre-employment screening in line with the UK Government's Baseline Personnel Security Standard (BPSS). An additional range of Personnel Security Controls referred to as National Security Vetting (NSV) may apply, this could include meeting the eligibility requirements for The Security Check (SC) or Developed Vetting (DV). For more information and guidance please visit: join us ## Description Your impact Are you a Systems Engineer who loves contributing to the UKs Defence Industry and making impactful change? Our client has a fantastic opportunity for an Engineer to be responsible for the design and development of security related functionality required to support our next generation airborne communications system. This role will involve engaging with other areas of the project, the project security function, international partners and the customer. You will be working on real Engineering problems, designing and developing solutions that sit at the heart of our products. What you'll do Management of system requirements. Feasibility studies to determine system architecture. Modelling of security functionality. Producing clear and concise technical documentation for your work. Support to the Project Engineering Lead to plan and develop work packages and subsequent reporting against these. Displaying good team working behaviours and taking a responsibility to manage your own work load in conjunction with the team Engaging with customers and suppliers as necessary