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Want to work to decarbonise one of the world's most important industries? Are you a great team player? Can you ship high-quality products faster than others think is possible? We're looking for a Senior Hardware Engineer who will do all these things and more. Come join us.

• Design, develop, and optimise firmware for embedded systems using Zephyr RTOS.
• Implement and maintain BLE and LoRaWAN based communication protocols.
• Work closely with hardware engineers to integrate firmware with custom hardware platforms.
• Develop and execute unit tests, integration tests, and validation frameworks.
• Optimise power consumption and memory footprint for embedded devices.
• Troubleshoot and debug complex firmware issues using JTAG, oscilloscopes, logic analyzers, and protocol sniffers
• Collaborate with cross-functional teams including software, hardware, and product management to define and deliver product requirements.
• Lead the firmware release cycle, including version control, documentation, and deployment for manufacturing
• Support manufacturing and production testing, ensuring firmware stability and performance in high-volume production environments

• 5+ years of firmware engineering experience, with at least 2 years working with Zephyr RTOS.
• Proficiency in C/C++ for embedded development.
• Experience with ARM Cortex-M microcontrollers and associated toolchains.
• Solid understanding of embedded software development best practices, including version control (Git), CI/CD pipelines, and automated testing.
• Proven track record of shipping products from concept to high-volume manufacturing.

• Expertise in Bluetooth Low Energy (BLE), including GATT, GAP, and power optimization techniques.
• Strong knowledge of LoRaWAN stack, including device provisioning, network architecture, and radio performance tuning.
• Experience working with DFU (Device Firmware Update) mechanisms and over-the-air updates. Familiarity with wireless certification processes (FCC, CE, etc.) and compliance testing.
• Experience with secure bootloaders, cryptographic protocols, and embedded security.
• Knowledge of sensor interfacing protocols (SPI, I2C, UART, CAN, etc.)
• Exposure to low-power design techniques for battery-operated devices.
• Experience with cloud integration and edge computing
• Strong problem-solving skills and ability to work in a fast-paced environment.

• Competitive salary of up to 65k
• Collaborative, dynamic and hybrid work environment with a minimum of 2 days a week working with the wider Hardware team at Converge HQ in London Blackfriars
• 25 days + Bank Holidays. We also close the office between Christmas and New Year so you can spend more time with your loved ones. Additional benefits include : Company pension, Cycle to Work Scheme so you can help reduce emissions but still get from A to B easily
• Social Committee and team events during the year so you can have a chance to learn more about the amazing people on our team
• A fun, inclusive workplace that celebrates diversity in all its forms, and where everyone can bring their whole selves to work and be treated fairly, equitably and respectfully

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Industries

  IT Services and IT Consulting

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