We're hiring a Principal Software Engineer to join a global technology business based in Buckinghamshire. The company designs and builds high-precision laboratory instruments used in science, healthcare, and environmental testing.

Please note: NO SPONSORSHIP IS PROVIDED WITH THIS POSITION

What You'll Do as a Principal Software Engineer:

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Lead the design and architecture of software systems across the full stack, from embedded C/C++ firmware controlling hardware to high-level C#/.NET applications.

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Mentor and guide a multidisciplinary team of software, firmware, and electronics engineers.

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Apply physics-based thinking to develop algorithms that turn raw sensor data into meaningful scientific results.

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Work closely with hardware teams to bring up new boards, debug complex opto-electronic systems, and integrate hardware with software seamlessly.

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Drive innovation in next-generation products, particularly in areas like thermal analysis and materials characterisation.

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Support manufacturing and production while collaborating cross-functionally on high-level software development.

Requirement for a Principal Software Engineer:

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Degree in Physics, Mathematics, or Engineering with a strong physics component.

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10+ years of commercial software experience with a proven track record of delivering complex systems.

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Expert-level skills in C#/.NET and strong experience in C/C++ for embedded systems/firmware.

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Experience leading or mentoring multidisciplinary technical teams.

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Background in scientific instrumentation, industrial automation, or similar environments where software interacts with hardware.

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Strong understanding of communication protocols (I2C, SPI, USB, Ethernet) and the ability to read schematics/datasheets for development and debugging.

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Experience defining software standards, driving Agile processes, and implementing CI/CD pipelines