Are you an experienced Principal Firmware Engineer ready to take ownership of firmware strategy and delivery for cutting-edge laser and photonics systems? This is a senior, high-impact role where you'll lead firmware development for advanced embedded platforms supporting industries such as medical devices, life sciences, semiconductors, space, and quantum technologies. This opportunity offers the chance to shape global firmware standards, drive innovation, and mentor teams while delivering robust, high-quality embedded solutions that meet customer and business objectives. Key responsibilities of the Principal Firmware Engineer job based in Southampton: Lead the research, development, testing, and maintenance of firmware for new and existing laser systems. Drive the creation of firmware concepts, roadmaps, and strategic plans aligned with organisational goals. Design, develop, test, and debug embedded firmware using C/C++ for complex hardware platforms. Develop algorithms for measurement data processing and create interface and communication protocol code. Implement and maintain build systems, automated testing, and continuous integration pipelines. Ensure firmware meets design, quality, reliability, and cost-effectiveness standards. Manage projects from concept and design through unit testing and handover to production. Conduct code reviews and ensure documentation captures designs, tests, policies, and procedures. Establish and maintain global best practice procedures across engineering teams and sites. Act as a key subject matter expert and advisor to internal stakeholders. Track deliverables, set priorities, and provide regular progress reports to senior leadership. Drive continuous improvement across processes, products, and services within the firmware function. Skills & knowledge required of the Principal Firmware Engineer job based in Southampton: Expert-level proficiency in C/C++ and embedded firmware development. Strong understanding of communication protocols networked and industrial interfaces. Experience with automated testing, CI/CD pipelines, and build systems. Knowledge of scripting languages and test automation frameworks. Strong project management, time management, and organisational skills. Ability to work collaboratively across engineering, R&D, product, and project teams. Strong communication skills and the ability to operate effectively in a fast-changing, high-growth environment. Innovative mindset with a strong customer and quality focus. Degree in Computer Engineering, Electrical Engineering, or a related discipline. Proven experience setting up and leading a firmware function. Strong background in system design, planning, and delivering complex engineering projects. Experience in the photonics industry and within fast-paced, growing environments. If this Principal Firmware Engineer job based in Southampton could be of interest, send your CV to or call Ben on 01582 878816 to discuss in more detail.