Senior Software Engineer

Are you a Senior Software Engineer with strong C++ skills and a background in signal processing, looking for a role where your work genuinely matters? Do you want technical leadership, real project ownership, and a career you can shape yourself? We're working with a highly respected, specialist technology business based in Chertsey to find a Senior Software Engineer to join their experienced engineering team. This is a hybrid role offering genuine flexibility alongside meaningful, technically challenging work. Important: This role requires SC or DV Security Clearance eligibility. Applicants must be sole UK nationals. What you'll be doing: → Leading and mentoring a team of software engineers, taking responsibility for the quality and delivery of their work → Defining architectural and detailed software designs as part of broader system development → Working across multi-disciplinary teams — collaborating with firmware and electronics engineers to ensure system requirements are met end-to-end → Implementing and testing software in C++ to industry standards across Linux and Windows platforms → Applying acoustic signal processing expertise to real-world embedded and real-time applications → Using structured design tools including Enterprise Architect and UML-based design methods → Managing software verification and validation against contractual requirement sets → Presenting designs to internal teams and customers at all project stages → Supporting system integration, acceptance activities, and Docker-based implementations What we're looking for — essential: ✔ Strong C++ development experience on Linux and/or Windows platforms ✔ Experience in acoustic signal processing or real-time embedded software ✔ Proven software team leadership — technical and interpersonal ✔ Comfortable with structured design tools, version control, and IDE environments ✔ Experience of software V&V against a formal requirement set ✔ Clear, precise technical communicator — confident presenting to customers and senior stakeholders ✔ BSc or above in Engineering, Maths, Science or equivalent experience ✔ SC or DV clearance held or eligible to obtain ✔ Full UK driving licence Nice to have: ★ Defence, government, or highly regulated industry background ★ Experience with Docker containers or similar ★ Familiarity with Enterprise Architect and UML What's in it for you: Up to 24 additional holiday days per year via paid overtime or TOIL Private medical care — 50+ private clinics and hospitals nationwide Christmas closedown — most staff off 24th December to 2nd January Competitive employer-matched pension Company tech — laptop, mobile and home office equipment provided Salary sacrifice schemes — bikes, tech and more Gym discounts plus onsite gym at Chertsey Flexible core hours: 09:30–12:00 & 14:00–16:00 Training, upskilling and genuine career development investment Relocation package available This is a role for someone who wants to lead technically, work on complex and meaningful products, and have real ownership of where their career goes