> Markdown version of [/jobs/ext/3721553-software-developer](https://www.wearedevelopers.com/jobs/ext/3721553-software-developer). 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).

---

# Software Developer

- **Company:** Mass Limited
- **Location:** Yeovilton, UK
- **Experience:** Expert
- **Salary:** £50,000.0 - £65,000.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Software Applications, Arduino, C Sharp (Programming Language), C++ (Programming Language), Configuration Management, Graphical User Interface, LabVIEW, Radio-Frequency Identification, Software Maintenance, Raspberry Pi, Software Engineering, Systems Integration, Information Technology
- **Published:** October 14, 2026
- **Apply:** https://www.careerjet.co.uk/job/gb99a885b5b9b339db47d80a825bcbecb1/eaa

## About the Role

* Requires in-depth practical knowledge in at least one of the working areas of software development and basic practical knowledge of other areas.
 * Applies software engineering and software development principles to develop, integrate and maintain systems and applications.
 * Able to identify faults, investigate root causes and implement effective corrective actions.
 * Understands software lifecycle practices, configuration management and system integration activities.

Essential Skills & Experience

 * Degree, HND, HNC or equivalent experience in Software Engineering, Computer Science, Electronic Engineering or a related discipline.
 * Experience developing, integrating and maintaining software systems.
 * C++ and/or C#.
 * Experience developing and maintaining software applications within a technical or engineering environment.
 * Strong problem-solving, communication and interpersonal skills.
 * Ability to obtain and maintain NATO Secret (NS) Security Clearance.

Desirable Skills & Experience

 * LabVIEW developer
 * Experience working with API interfaces.
 * Knowledge and/or experience working on one or more of: radar/microwave, avionics, communications, electronic warfare. Competency working with RF sub-systems and associated test equipment.
 * Evaluation and testing of RF systems or components.
 * Digital and analogue communication signals and associated protocols.
 * Experience with single-board computers such as Arduino or Raspberry Pi.
 * Experience working within Defence, NATO or other secure environments.

What we're looking for
We're looking for a proactive and motivated individual who enjoys solving technical challenges and working as part of a collaborative team. You'll be comfortable operating independently, communicating with a range of stakeholders and applying your expertise to deliver practical solutions in a specialist Electronic Warfare environment.

## Description

Looking for a role where your software expertise directly supports NATO Electronic Warfare training capabilities?
At MASS, we help our customers make better decisions in critical situations. We are looking for a Senior Software Developer to join our team, providing in-hangar support to the NATO Joint Electronic Warfare Core Staff (NATO JEWCS) fleet of Electronic Warfare training assets.
Working within a highly specialised environment, you will play a key role in the development, maintenance and enhancement of Electronic Warfare software and hardware systems, ensuring the continued availability and effectiveness of mission-critical training capabilities.
This is a hands-on role that offers the opportunity to work across software development, systems integration, RF technologies and Electronic Warfare applications, supporting both project delivery and operational activities.
What you'll be doing

 * Acting as a software subject matter expert, providing development, maintenance and training support to ensure the continued availability, utility and relevance of EW training assets.
 * Undertaking integrated software and hardware modifications to enhance Electronic Warfare training capabilities.
 * Developing and maintaining control software and Graphical User Interfaces (GUI) / Man Machine Interfaces (MMI).
 * Performing configuration management activities for customer-owned source code and bespoke EW application software.
 * Supporting trials, evaluation activities and exercises, including occasional deployment to exercise locations or NATO platforms.
 * Troubleshooting, investigating and resolving software and hardware issues within complex Electronic Warfare systems.
 * Collaborating with engineers, technicians and customers to deliver innovative technical solutions.

General Profile

 * Requires in-depth knowledge of principles and practices in at least one of the working areas of software development and basic knowledge of other areas.
 * Works with a high degree of autonomy, applying professional judgement and technical expertise to solve complex problems.
 * Responds flexibly to emerging challenges and is able to deliver effective solutions with minimal supervision.
 * Contributes to the continuous improvement of Electronic Warfare training capabilities and associated systems.