Principal Software Engineer in Cambridge

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Job Description

Role: Principal Software Engineer

Salary: Up to £85,000

Location: Cambridge (fully on-site)

You’ll take technical ownership across a range of embedded and connected product development projects, working from early concept through to real-world deployment. This role blends hands-on engineering with technical leadership, giving you the chance to shape architectures, guide teams, and work closely with clients to solve complex, practical problems.

Key Responsibilities

• Lead the design and development of embedded and connected software systems
• Take a system-level view across firmware, hardware, connectivity, and cloud components
• Define pragmatic architectures and make sound technical decisions
• Work directly with clients to capture requirements and shape technical direction
• Write, review, and integrate production-quality code, primarily in C/C++
• Mentor and support other engineers, promoting best practice across the team
• Stay current with technologies shaping embedded, IoT, and connected products

Skills & Experience Required

• Strong experience developing embedded software in C/C++ for RTOS-based systems
• Proven background working with low-power, resource-constrained MCUs
• Experience configuring and working with RTOS environments such as FreeRTOS or Zephyr
• Solid understanding of embedded Linux
• Ability to communicate clearly with both technical and non-technical stakeholders
• Experience leading design discussions and guiding technical decisions

Desirable

• Experience with cloud, web, or mobile technologies in connected device ecosystems
• Background in consultancy or multi-project environments
• Exposure to full product lifecycles from concept through to manufacture

Keywords

Principal Software Engineer, Embedded Software, C, C++, RTOS, Embedded Linux, IoT, Connected Devices, Low Power Systems, Technical Leadership, Consultancy.

If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.