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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Principal Systems Engineer - **Company:** Hackajob Ltd - **Location:** Southampton, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, MATLAB, Software Tools, Simulink, Verification and Validation (Software), Jama (Software), Model-Driven Development, DOORS (Software), Polarion - **Published:** August 24, 2026 - **Apply:** https://www.totaljobs.com/job/senior-principal-systems-engineer/hackajob-ltd-job107889148 ## About the Role You will be educated within a STEM area and have proven domain experience in EO/IR technologies, with the following attributes: * Requirements capture and management, System definition and development, Modelling and analysis, Verification and validation, Full engineering lifecycle application, * Experience with Model Based Design (MBD) tools and methodologies to support describing and analysing through the problem to implementation domains, * Experience working in product development teams delivering Engineering artefacts successfully, * Experience in managing and collaborating with internal/external stakeholders, * Proven decision-making skills in a high complexity, dynamic environment, * Excellent communication and interpersonal skills, proven ability to build trust and respect at different levels, * Motivation, tenacity and determination, with a desire to deliver outputs and results. The following experience/skills are very desirable: * Working experience and/or understanding of electronics design, * PhD, EngD or Post-graduate degree in electro-optics, * Practitioner level ability using Model Driven Engineering tools e.g. Cameo Systems Modeler, MATLAB, Simulink, * Experience in using a requirement management tool to manage relationships of requirement and other project artefacts (DOORS, Polarion, Jama). 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. ## Description Are you an experienced Systems Engineer or Scientist who loves contributing to the UKs Defence Industry and making impactful change? We are recruiting for Senior and Principal Systems Engineers in our growing Detectors Area of Business in Southampton, who can apply their expertise to deliver cutting-edge Electro-Optics/InfraRed (EO/IR) capabilities across a diverse range of projects. Your Impact Our Systems Engineers span across a range of activities that help pull together all the necessary engineering and technology strands into a high-performance system. As a Systems Engineer, you will bridge the gap between the theoretically possible and the practically implementable. What we build is exciting, interesting, challenging and complex. A diverse product portfolio of EO/IR technologies, with each programme at a different stage in its development lifecycle. Typical work you might be involved in: * Applied research: Early research looking into exploiting new EO/IR technologies or concepts. * Requirements capture, definition, development, modelling, manufacture, test, and verification of EO/IR technologies. * Applying and improving systems engineering processes across the full lifecycle. * Collaborating with integrated project teams to design, build, and deliver EO/IR equipment. To be successful you will demonstrate passion for your trade by instilling a systems-thinking approach based on experience forming and leading high performing teams. You will be able to influence those you work with, thrive in dynamic environments, demonstrate resilience when faced with adversity and able to make decisions quickly under pressure and setting a clear technical vision for the project team. Given the extensive people engagement nature of the work, we are still able to offer custom working that allows for a combination of home and on-site working i.e. flexible working delivering effective results. ## Related Videos - [Building a hypercar from scratch](https://www.wearedevelopers.com/videos/607-building-a-hypercar-from-scratch) - [Model Based Systems Engineering in an Agile Product Development Process](https://www.wearedevelopers.com/videos/68-model-based-systems-engineering-in-an-agile-product-development-process) - [Leveraging Large Language Models for Legacy Code Translation: Challenges and Solutions](https://www.wearedevelopers.com/videos/1157-leveraging-large-language-models-for-legacy-code-translation-challenges-and-solutions) - [Why Your Best Mediors Never Become Seniors (And How to Fix It)](https://www.wearedevelopers.com/videos/2108-why-your-best-mediors-never-become-seniors-and-how-to-fix-it) - [Software stack under and over the hood of the fastest accelerating car in the world](https://www.wearedevelopers.com/videos/221-software-stack-under-and-over-the-hood-of-the-fastest-accelerating-car-in-the-world) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) ## Related Articles - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)