Principal Embedded Software Engineer

About the role

We are seeking a Principal Embedded Software Engineer to join Fen Technology Ltd, part of the Inspiralia Group, as we expand rapidly in the UK. You will be involved in every stage of product development, from feasibility studies to new‑product introduction, working both autonomously and as part of multidisciplinary teams.

Key responsibilities

• Lead the full software development lifecycle, from requirements capture through design, implementation, validation and release for high‑volume manufacturing.
• Design and develop C/C++ embedded firmware for micro‑controllers, using Real‑Time Operating Systems such as FreeRTOS.
• Develop and debug software on prototype hardware and evaluation kits, and collaborate closely with hardware engineers.
• Apply Agile/Scrum methodologies and use bug‑tracking systems to manage tasks and deliverables.
• Lead and mentor software development teams, ensuring clear communication with clients and internal stakeholders.

Required profile

• Proven experience delivering embedded software projects in a commercial environment.
• Strong time‑management skills and the ability to work with minimal supervision.
• Excellent communication skills for interacting with clients and multidisciplinary teams.

Required skills

• C/C++ embedded development
• Real‑Time Operating Systems (e.g., FreeRTOS)
• Device driver development (I2C, SPI, USB)
• Hardware control interfaces (GPIO, UART, DMA)
• Embedded Linux at BSP level
• TCP/IP networking and wireless technologies (Bluetooth LE, Wi‑Fi)
• Scripting languages and REST API integration
• System security and encryption techniques

What we offer

• Competitive remuneration package commensurate with experience.
• Collaboration with a team of highly experienced engineers.
• Friendly, dynamic working environment with a supportive team approach.
• Opportunities to develop skills across a wide range of exciting technologies and markets.
• Attractive workplace in a pleasant rural village location on the edge of Cambridge.