Senior IoT Engineer - Smart Devices
Fuse Energy
Design, build, and scale secure IoT hardware for Fuse's Energy Network.
7 days ago ago
Expert & Leadership (13+ years), Experienced (8-12 years)
Full Time
London, England, United Kingdom
Hybrid
Company Size
43 Employees
Service Specialisms
Energy Services
Sustainability Consulting
Renewable Energy Solutions
Project Management
Engineering
Construction
Turnkey Solutions
Design
Sector Specialisms
Energy
Renewable Energy
Solar
Wind
Battery
Electricity Procurement
Natural Gas Procurement
Energy Advisory Services
Role
What you would be doing
firmware ota
connectivity stack
secure boot
cloud integration
threat modelling
telemetry metrics
- Develop signed firmware update pipelines, and A/B or rollback OTA update mechanisms
- Contribute to design reviews, technical documentation, and interface specifications
- Ensure designs comply with safety, EMC, radio, and grid interconnection standards
- Develop and optimise secure, reliable messaging using MQTT, CoAP, HTTP, or WebSockets
- Lead threat modelling, software bill of materials (SBOM) generation, and vulnerability management programs
- Design and implement connectivity stacks across Ethernet, Wi-Fi, Thread, Zigbee, and BLE
- Build secure boot flows, key and certificate provisioning, and hardware attestation using TPMs or secure elements
- Implement precise device time synchronisation with NTP or PTP
- Partner with firmware, hardware, power electronics, mechanical, and security teams to deliver production-ready devices
- Work closely with manufacturing to support Engineering, Design, and Production validation cycles
- Prepare test plans and certification artefacts, and coordinate with notified bodies and test labs
- Integrate devices with cloud IoT services (AWS, Azure, GCP) and distributed energy resource (DER) protocols
- Mentor peers on embedded security, networking, and protocol best practices
- Define and track telemetry and health metrics for device observability and predictive maintenance
What you bring
c/c++
python
rtos
wireshark
iec62443
ota
- Working knowledge of cybersecurity and privacy standards (IEC 62443, ISO 27001, ETSI EN 303 645, GDPR)
- Practical experience with EMC/RF design, antenna bring-up, and factory testing
- Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or equivalent practical experience
- Skilled in debugging with logic and protocol analysers, network sniffers (e.g., Wireshark), and cloud observability tools
- 3+ years of experience shipping connected embedded products
- Strong proficiency in C/C++ on RTOS (e.g., Zephyr, FreeRTOS), plus Python scripting for testing and automation
- Deep understanding of IP networking, TLS 1.2/1.3, mTLS, PKI, and secure device provisioning at scale
- Experience with OTA frameworks, bootloaders, and CI/CD pipelines for firmware
- Competitive salary
- Paid annual leave
- Biannual bonus scheme
- Breakfast and dinner for office based employees
- Fully expensed tech to match your needs
Information not given or found
Interview process
Information not given or found
Visa SponsorshipInformation not given or found
Security clearanceInformation not given or found
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Company
Overview
$78 million
Seed Funding Secured
The company rapidly expanded after securing $78 million in seed funding, maintaining financial flexibility.
- Founded in 2022 by former Revolut executives, the company entered a post‑crisis UK market aiming to shake up energy supply.
- They built an app‑first platform that guarantees the lowest electricity tariff, undercutting Ofgem’s price cap and refunding any difference.
- Alongside retail supply, they invest in and manage solar and wind farms, and are pairing renewables with electrolyzers to explore green hydrogen.
- Typical projects include tariff optimization, smart meter installation, vertical integration of renewables, and hydrogen pilot systems.
- Their multi‑rate and Economy 7/10 tariffs complement rooftop installations, offering both peak/off‑peak benefits and behind‑the‑meter generation.
- An unusual early move: launching with real‑time consumption tracking and renewables investment from day one, blending tech, green energy and finance.
- Quick iterations, field of learning, clear communication and strong ownership — team members see immediate impact without excessive bureaucracy
- High expectations and accountability — people care about delivering results and are rewarded accordingly
- Experienced and involved team with a growth mindset — openness to giving and receiving objective feedback
- Strong compensation aligning with startup performance and leadership standards
18+300 MW
Renewable Capacity
Operating and maintaining solar and wind capacity in the UK with additional projects in development.
$12M/$90M
Project Zero Funding
Secured in September 2024 for a decentralized renewable energy network.
1 TW
Renewable Energy Goal
Targeting 1 terawatt renewable capacity via Project Zero.
- Project Zero launch scheduled for 2025 including installer marketplace, retail energy and EV charging network
- Decentralized approach rewards users via a Solana-based utility token for contributing clean energy and demand response
- No publicly disclosed DEI strategy, targets, or gender-related statistics found on website or LinkedIn
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