Senior Software Engineer

Salary: £38,000 - 78,000 per year

Requirements:

• Degree Qualified (BSc or equivalent) in Software Engineering, Computer Science or equivalent experience
• Experience with C++, C#, Java, and web development (HTML, CSS, JS, etc.)
• Exposure to other embedded development (Linux, bash/shell scripting, terminal command-line scripts, Qt/QML)
• Strong experience architecting cradle-to-grave software solutions including Technology Readiness Level (TRL) process
• Proven track record with creating and maintaining servers, primarily those with versioning control, Bugzilla, project management capabilities and automated testing capabilities
• Strong experience of software development lifecycle processes, ensuring quality of process and firm traceability from requirements to implementation
• Experience of creating and managing cloud-based big data solutions desirable
• Proven track record of working collaboratively with a diverse range of internal and external stakeholders
• Must be in a position to obtain UK security clearance to SC level, with further security clearance to DV level desirable
• Adherence to STS Defence core values required

Responsibilities:

• Develop and maintain software throughout the Software Development Lifecycle from requirements elicitation to in-service delivery
• Provide technical leadership on software projects for key stakeholders and on software development activities undertaken by the company
• Manage code and quality reviews to ensure relevant quality standards are met across the software team
• Coordinate day-to-day software development in a small team
• Design and implement software changes through the change control process as part of spiral development
• Lead the planning, delivery, and assurance of software work packages
• Ensure software engineering processes and best practices are followed
• Provide oversight, direction, and guidance to allocated project team members
• Offer software engineering technical input into bid preparations and contracts
• Support project software requirements including customer and stakeholder meetings as necessary
• Explore opportunities for further business development

Technologies:

• Big Data
• Bash
• C#
• Cloud
• CSS
• Embedded
• Support
• Java
• Linux
• Qt
• Security
• Web
• C++

More:

We are STS Defence, a dedicated team focused on developing leading-edge software solutions. As a Senior Software Engineer, you will play a vital role in shaping our projects while benefiting from a collaborative environment that encourages continuous improvement and innovation. Our location offers the chance to work with state-of-the-art technologies, and we value your commitment to our core principles while we strive to enhance our software development capabilities.

last updated 39 week of 2026