Senior Software Engineer Defence Technology Chertsey, Surrey Hybrid (2 days on-site) Up to 80,000 + Package The Company A well-established, specialist defence and technology business based in Chertsey, Surrey. Operating as a flat, agile SME, the company delivers high-quality systems and products into the defence sector, offering genuine exposure across the full engineering lifecycle. You will be working in a technically driven environment where individual contribution has real impact on the business and its customers. The Role We are looking for a Senior Software Engineer to work within and lead a team of design engineers, delivering innovative software solutions into complex defence programmes. You will be responsible for translating system requirements into robust software architectures, managing delivery against project timescales and budget, and mentoring junior engineers within the team. Key Responsibilities Define architectural and detailed software designs as part of the wider system definition Lead and mentor a software engineering team on a day-to-day basis Work cross-functionally with firmware and electronics engineers to ensure system-level requirements are met Monitor software compliance with project and company standards Present designs at review stages both internally and to customers Manage estimation, planning and progress against project milestones What You''ll Need Strong C++ development experience, ideally to industry standards on Linux and/or Windows pl