Job Description Software Engineer - Submarines Full time (Days) Derby (Onsite) We have an exciting opportunity for a Software Engineer to help develop tools that support the design and manufacture of nuclear powerplants for the Royal Navy. You will build in-house web applications that help scientists and engineers work more efficiently and make better decisions. In this role, you will specify, design, test, and validate software components, and deliver high-quality code and documentation on time. You will break down designs, create tests, and ensure the software meets all requirements Our backend uses Python with scientific libraries (NumPy, SciPy, Polars), and our frontend uses React. Experience with these is helpful but not required. Why Rolls-Royce? At Rolls-Royce we are proud to be a business that has truly helped to shape the modern world and are committed to always being a force for progress; powering, protecting and connecting people everywhere. By joining Rolls-Royce, youll have the opportunity to work on world-class solutions, supported by a culture that believes individuality is our greatest strength, and all perspectives, experiences and backgrounds help us innovate and enable our high-performance culture. What you will be doing: Developing web applications for the upload, processing, and visualisation of complex manufacturing datasets. Aggregating data to aid product manufacture, helping to reduce risk, time and cost in our products. Modernising our processes and methods, acting as an ambassador for software and digital methods. As a senior software engineer you will seek to mentor and upskill junior colleagues, through maintaining technical development, guiding process compliance, and supporting wellbeing. Position Qualifications: To be successful in this role, we are looking for someone who is/has: Demonstrable long-term experience of software development in a commercial environment. Preferably in fields with a focus on compliance (Financial services, medical, engineering, etc). A numerate, degree level, education (Computer Science, Mathematics, Physics, Engineering) or equivalent experience. Committed to developing high quality code that is interpretable, documented and tested. Taking responsibility to steer the governance and continuous improvement of these processes. With the support of the product owner, you will be keen to work with a range of customers from operations and engineering to elicit requirements and translate them to traceable code. Designing and architecting solutions for long term stability and maintainability. Have a delivery focussed mindset, able to make decisions that make best compromises between complexity and shipping value. This includes at the tech stack level. Experience of automation in the context of software development and deployment lifecycle. Demonstrable leadership attributes. This need not be a direct team leader or managerial role, but the behaviours and values commensurate with a senior position Have interests in topics beyond the typical scope of web application development, we are particularly keen to hear from applicants with interests in statistics, optimisation, and mathematics (Desirable). Experience of working during change or transformation. Building relationship within complex organisations and using this to influence outcomes (Desirable). For more than 60 years Rolls-Royce Submarines has designed, supplied and supported the nuclear propulsion plant, providing power for all UK Royal Navy nuclear submarines. To work for Rolls-Royce Submarines an individual must hold a Security Check clearance. We will support the application for Security Clearance if you dont already have it. Due to the nature of work we conduct, we can only progress applications from individuals who are a UK national or, in MoD approved cases, a dual national. Our vision is to ensure that the excellence and ingenuity that shaped our history continues into our future. Our multi-year transformation programme aims to turn Rolls-Royce into a high-performing, competitive, resilient and growing company. Join us, and it can be your future vision too. Rolls-Royce are committed to being a respectful, inclusive, and non-discriminatory workplace where individuality is valued, diverse perspectives fuel innovation, and everyone can thrive. Closing date: 16/01/2026 As part of our selection process, candidates in certain locations may be asked to complete an online assessment, which can include cognitive and behavioural aptitude testing relevant to the role. If required, full instructions for the next steps will be provided. Job Category Software Systems Posting Date 17 Dec 2025; 00:12 Posting End Date 16 Jan 2026PandoLogic. Keywords: Software Engineer, Location: Derby, ENG - DE23 8NX