C++ Software Development Engineer

Vision RT is a fast-growing MedTech company transforming radiation therapy for cancer patients by helping make it more accurate, effective, and comfortable. The company is the inventor of, and a market leader in, Surface Guided Radiation Therapy (SGRT). This technology uses advanced 3D cameras to track surface data, providing enhanced guidance across every step of the radiotherapy workflow.

Vision RT’s SGRT solutions are in 24 out of the 25 “Best Hospitals for Cancer,” as tracked by US News & World Report.

The company is recognised as one of Britain’s fastest-growing private tech companies, as featured in the 2025 Sunday Times 100 Tech list. Vision RT is also a recipient of the 2024 King’s Award for Enterprise, the UK’s most prestigious accolade for business excellence.

Company video

With around 300 employees globally and offices in the UK, Poland, and the USA, Vision RT operates independently as part of the Danish company William Demant Invest A/S, one of the world’s largest investors in healthcare companies. Employees benefit from the security and reach of being part of a large global enterprise, combined with the agility and innovation of a startup.

Vision RT is a company with strong values, a clear mission, and a bright future. It is an exciting and rewarding organisation in which to work.

About the role

As part of the Core library team, you will contribute to the development of advanced radiotherapy systems and imaging technologies that help create accurate 3D models for patient treatment. In this role as a Software Development Engineer in Test (SDET), you will design, build, and maintain automated testing frameworks that support our continuous integration pipeline. Your work will ensure our software performs reliably across diverse hardware, graphics cards, and camera configurations.

You will play a key role in safeguarding product quality and performance by running comprehensive tests and providing actionable insights. Collaboration is central to this position - you’ll work closely with other developers and stakeholders across multiple products to deliver robust, high-performing solutions that make a real difference in patient care.

• Build and maintain automated testing framework(s) to support the continuous integration and internal delivery of the core libraries.
• Design and execute performance, integration, and regression tests across multiple hardware, graphics cards, and camera configurations.
• Collaborate with developers, product owners, and stakeholders to define quality standards, acceptance criteria, and risk mitigation strategies.
• Ensure compliance with the Quality Management System (QMS) while providing insights on risks, performance claims, and continuous improvement.

• Proficient in either C++ or C# programming languages.
• Significant experience as a Software Engineer with a strong focus on testing.
• Strong knowledge of low-level issues, including threading, memory leaks, and profiling.
• Proficient in either C++ or C# programming languages.
• Excellent written and verbal communication skills.
• Ability to work independently while being an integral part of a collaborative team.

• Familiarity with continuous integration and deployment tools, ideally DevOps.
• Good knowledge of testing methodologies, tools, and best practices.
• Knowledge of cloud platforms, particularly Azure.
• Prior experience in image or video processing.
• Knowledge of C++, C#, Python, OpenGL, CUDA.

Vision RT is an Equal Opportunity / Affirmative Action employer, all qualified applicants will receive consideration for employment and development without regard to race, colour, religion, sexual orientation, gender, national origin, disability, or protected veteran status.