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.