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Senior Embedded Software Engineer

Job in East Horsley, Guildford, Surrey County, GU1, England, UK
Listing for: Cranleigh STEM, Sustainability & SHEQ Recruitment
Full Time position
Listed on 2026-02-17
Job specializations:
  • Engineering
    Systems Engineer, Embedded Software Engineer
Job Description & How to Apply Below
Location: East Horsley

Cranleigh STEM is working with a leading provider of fuel cell power systems to generate clean energy in support of the global energy transition. The company is now recruiting a Senior Embedded Software Engineer to join its team based in Guildford on a permanent full-time basis and to help deliver on the company’s long-term success.

As a Senior Embedded Software Engineer, you will be responsible for supporting existing and developing new products within fuel cell energy generation and integrated power solutions.

This position requires a person with extensive experience with embedded microcontrollers and software development, verification, and documentation to work within the Electronics team.

Senior Embedded Software Engineer responsibilities:

  • Lead the development of embedded software for innovative fuel cell and power system products.
  • Capture and translate software requirements into well-structured architectures and maintainable code.
  • Design, implement, and support embedded software solutions, ensuring functionality, performance, and reliability.
  • Work cross-functionally with electronics, systems development, production, and testing teams to ensure successful product integration.
  • Produce and maintain documentation to support software compliance, validation, and traceability.
  • Contribute to design and safety reviews, including HAZOP, SIL, LOPA, and Cause & Effect analysis.
  • Perform fault diagnosis, debugging, and hands-on testing using a wide range of lab equipment and tools.
  • Provide technical support for system development and customer-specific deployments.

Senior Embedded Software Engineer requirements

  • Extensive experience in embedded C development, both in bare-metal and RTOS environments.
  • Strong understanding of microcontroller systems, memory management, and optimised coding techniques.
  • Ability to undertake practical hands-on work when required.
  • Proficient with communications protocols such as SPI, I2C, UART, and Ethernet.
  • Skilled in developing low-level device drivers and hardware-software interfacing.
  • Experience in unit and system-level testing and validation.
  • Competent with software version control systems, such as Git.
  • Willingness to travel internationally to support product deployment and customer sites.

Desirable Qualifications

  • Degree (or equivalent) in Electronics, Software Engineering, or Computer Science.
  • Experience with industrial protocols such as Modbus, CAN, and Profinet.
  • Familiarity with Test-Driven Development (TDD) methodologies.
  • Exposure to Python for scripting or test automation.
  • Experience with automated testing systems or test rigs.
  • Previous exposure to fuel cell or electrochemical systems.
Seniority level
  • Seniority level

    Mid-Senior level
Employment type
  • Employment type

    Full-time
Job function
  • Job function

    Engineering and Science
  • Industries Semiconductor Manufacturing and Services for Renewable Energy

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Position Requirements
10+ Years work experience
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