> Markdown version of [/jobs/ext/3211033-principal-systems-engineer](https://www.wearedevelopers.com/jobs/ext/3211033-principal-systems-engineer). 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 Systems Engineer

- **Company:** Leonardo UK
- **Location:** Lincoln, UK
- **Experience:** Expert
- **Salary:** £45,000.0 - £70,000.0
- **Contract:** Permanent contract
- **Skills:** Software Applications, Systems Engineering, Subsystems
- **Published:** September 3, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=ed7872564debb984

## About the Role

* Extensive experience in Operational MDS design and development.
 * Strong understanding of Electronic Warfare Operational Support (EWOS) and RF signal propagation.
 * Proven knowledge of passive/active EW sensor systems and emitter identification methods.
 * Experience conducting engineering gate reviews and producing traceable test evidence.
 * Familiarity with JEWOSC/MSC tool sets, data, and processes.
 * Excellent problem-solving, communication, and leadership skills.

Desirable

 * Experience with the Praetorian Defensive Aids Sub System.
 * Familiarity with DOORS or similar requirements tools.
 * Experience supporting military end-users or developing desktop software toolsets.

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., This role is subject to pre-employment screening in line with the UK Government's Baseline Personnel Security Standard (BPSS), along with an additional range of Personnel Security Controls referred to as National Security Vetting (NSV), including meeting the eligibility requirements for The Security Check (SC) or Developed Vetting (DV). For more information and guidance please visit: https://careers.uk.leonardo.com/gb/en/security-and-vetting. Due to the nature of the work and its connections to UK Defence strategy, applicants must have five years UK Residency and hold a UK Passport.

## Description

Are you an experienced Mission Data Programmer looking to advance your career within Electronic Warfare?, * Develop and apply systems engineering best practices across the full lifecycle.

 * Interpret radar emitter data and collaborate with EW specialists to refine requirements.
 * Support MDS production, verification, and validation to demonstrate compliance.
 * Produce technical documentation and present at engineering gate reviews.
 * Act as a focal point for MDS process adherence and team development.
 * Travel occasionally in the UK and overseas to engage with customers and partners.


## Related Videos

- [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)
- [Securing your application software supply-chain](https://www.wearedevelopers.com/videos/468-securing-your-application-software-supply-chain)
- [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers)
- [10M Data Records Lost, Underwater Computing, and Psychedelic Fish - Matthias Geniar](https://www.wearedevelopers.com/videos/1908-10m-data-records-lost-underwater-computing-and-psychedelic-fish-matthias-geniar)
- [Automated Driving - Why is it so hard to introduce](https://www.wearedevelopers.com/videos/628-automated-driving-why-is-it-so-hard-to-introduce)
- [Robots are coming into the wild! Full-Stack Robotics Engineers, be ready!](https://www.wearedevelopers.com/videos/479-robots-are-coming-into-the-wild-full-stack-robotics-engineers-be-ready)

## Related Articles

- [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)
- [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)
- [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london)
- [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)
- [UK Business Culture and Etiquette](https://www.wearedevelopers.com/magazine/326-uk-business-culture-and-etiquette)
- [Software Engineer Salary in The UK](https://www.wearedevelopers.com/magazine/231-software-engineer-salary-in-the-uk)