Overview

We are seeking a highly experienced Principal Software Engineer to lead the development of advanced control systems software for our state-of-the-art radiotherapy solutions. This role involves designing and evolving a suite of applications, including service tools, factory test software, and interfaces that connect treatment management systems with real-time control software. You will also drive the migration and maintenance of these applications to a modern, containerised microservices platform. As a technical leader within a Scrum team and an Agile Release Train, you will champion best practices in software engineering, ensuring quality and compliance in a safety-critical environment. Your expertise will guide architectural decisions, influence technical strategy, and mentor teams to deliver innovative, reliable solutions that make a real difference in patient care.

What you’ll do at Elekta

• Define, design, develop and maintain applications and the control system for the Elekta Radiotherapy Treatment System (Linac).
• Maintain and enhance software quality metrics including test coverage and code maintainability through code walkthroughs, testing at all levels of the V model and attention to detail. Ensure the code and the system are well tested and of sufficient quality for full solution testing.
• Ensure that all products are developed in accordance with the applicable published development process and that documentation is created in line with this.
• Represent the domain in the safety analysis lifecycle. Participate in safety analysis, raise safety issues and contribute to creation of traceable hazard mitigation.
• Define high level requirements, provide architectural guidance, and contribute to architectural definition.
• Lead the technical direction of product development across teams, domains and release trains.
• Develop a wide breadth of domain knowledge, with expert level knowledge of more than one subsystem.
• Able to focus teams and individuals on delivering technical solutions according to plan.
• Mentor and develop others.

What you get

• Hybrid work option (you are required to work from the Crawley HQ at least 3 days/week)
• Up to 25 paid vacation days (plus bank holidays)
• Holiday Purchase Scheme
• Private Medical Insurance
• Attractive Employer Pension Contribution Package
• Cycle to work scheme
• Life Assurance
• Onsite subsidized restaurant, offering budget-friendly dining
• Love electric (Electric vehicle salary sacrifice scheme)
• SAFe methodologies
• Previous experience of Medical Devices (or other regulated/safety critical areas)
• Real time and Embedded development experience
• Automated testing
• VMware
• Domain Driven Design practices
• Asynchronous programming and event driven systems using Message queues
• Cloud DevOps
• Containerisation (e.g. Docker)
• Fluent in English with strong communication skills
• Effective problem-solving skills
• Structured and professional approach to engineering

What you bring

• Degree in an engineering discipline or equivalent experience
• Full stack development using C#/.NET, WPF platforms and C++ on Windows
• Unit testing and experience of CI/CD
• Object Oriented design
• Knowledge and understanding of software engineering disciplines, practices, and techniques
• Understanding and experience of the overall SDLC for application development
• Asynchronous programming and event driven systems using Message queues
• Understanding and experience of Agile
• We encourage you to apply even if you don\'t meet every requirement—your unique skills and experiences might be exactly what we\'re looking for!