Senior Software Engineer Surrey On-Site Working £60,000–£70,000 We are currently partnering with a specialist engineering organisation operating within the Defence sector who are looking for a Senior Software Engineer to join their established engineering team. The company delivers complex, high-integrity systems within an R&D-led environment, offering the opportunity to work across the full development lifecycle on technically challenging projects. This is a key role within the software function, combining hands-on development with technical leadership. You will take ownership of software design and delivery, support project execution, and mentor engineers within a collaborative team environment. The role is based in Surrey and requires on-site working. Key Responsibilities Lead architectural and detailed software design activities Develop and test software solutions in C++ to industry standards Translate system requirements into robust software designs Work closely with electronics, firmware, and systems engineering teams Ensure software compliance with project and organisational standards Support estimation, planning, and delivery against project timelines Present technical solutions to internal stakeholders and customers Mentor and supervise software engineers within the team Support system integration, verification, and acceptance activities Experience Required Degree in Engineering, Mathematics, ...