Senior IoT Engineer (Embedded)

TL;DR

Senior IoT Engineer (Embedded/IoT): Designing and scaling connected hardware for a decentralized energy network with an accent on embedded systems, secure connectivity, and fleet management. Focus on building resilient communication protocols, secure boot flows, and robust OTA update mechanisms.

Location: On-site in London, UK

Company

A renewable energy startup building a decentralized platform of smart devices to optimize the energy grid and scale renewable energy infrastructure.

What you will do

• Develop and maintain connectivity across Ethernet, Wi-Fi, Thread, Zigbee, and BLE.
• Build secure, reliable device messaging using protocols such as MQTT, CoAP, HTTP, or WebSockets.
• Implement secure boot flows, certificate provisioning, and signed firmware OTA update pipelines.
• Integrate devices with cloud IoT platforms and define telemetry and health monitoring.
• Support testing and validation for safety, EMC, and radio product requirements.
• Collaborate with firmware, hardware, and software teams to deliver production-ready systems.

Requirements

• Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or equivalent practical experience.
• 5+ years of experience building connected embedded products.
• Proficiency in C/C++ for embedded systems and experience with RTOS (Zephyr or FreeRTOS).
• Experience with Python for testing, tooling, or automation.
• Solid understanding of IP networking and secure communications (TLS, certificates).
• Practical debugging experience using logic analyzers, protocol analyzers, or network sniffers.

Nice to have

• Experience with low-power wireless technologies (Thread, Zigbee, BLE).
• Familiarity with cloud IoT services on AWS, Azure, or GCP.
• Exposure to secure boot, TPMs, secure elements, or hardware attestation.
• Experience with EMC/RF testing, antenna bring-up, or factory test processes.
• Knowledge of cybersecurity standards like IEC 62443, ETSI EN 303 645, or ISO 27001.

Culture & Benefits

• Competitive salary and an equity sign-on bonus.
• Biannual bonus scheme.
• Fully expensed tech equipment tailored to your needs.
• Paid annual leave.
• Breakfast and dinner allowance for office-based employees.