At a Glance
- Tasks: Design and build connected hardware for a revolutionary energy network.
- Company: Join a forward-thinking renewable energy startup on a mission to transform energy systems.
- Benefits: Competitive salary, equity bonus, tech allowance, and paid leave.
- Other info: Collaborative environment with opportunities for growth and innovation.
- Why this job: Make a real impact in the renewable energy sector with cutting-edge technology.
- Qualifications: 5+ years in embedded systems and strong C/C++ skills required.
The predicted salary is between 60000 - 80000 £ per year.
Fuse Energy is a forward-thinking renewable energy startup on a mission to deliver a terawatt of renewable energy - fast. We're combining first-principles thinking with cutting-edge technology to build a radically better energy system. We raised $170M from top-tier investors including Multicoin, Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, Box Group and strategic angels like Nico Rosberg, the Co-Founder of Solana and GPs behind Meta, Revolut, Spotify, Uber and more.
We’re creating a fully integrated energy company: from developing solar, wind and hydrogen projects to real-time power trading and distributed energy installations. By selling directly to consumers, we cut out the middleman, lower costs and pass on savings to customers.
But we’re not stopping there. We’re also building the Energy Network: a decentralised platform of smart devices to electrify our homes, shifting usage to off-peak hours and helping balance the grid. This network strengthens grid stability - a critical foundation for scaling AI data centers and other energy-intensive industries.
We’re looking for an Embedded Software Engineer to help design, build, and scale the connected hardware powering the Energy Network. This is a hands-on role spanning embedded systems, networking, device security, and fleet connectivity — from prototype through to deployment. You’ll contribute to building resilient connectivity, secure provisioning, and robust telemetry across a growing fleet of distributed energy devices.
You’ll play an important role in shaping how our devices connect, communicate, and evolve securely at scale, working closely with firmware, hardware, and backend teams to deliver production-ready systems.
Responsibilities:
- Connectivity & Networking
- Develop and maintain connectivity across Ethernet, Wi-Fi, Thread, Zigbee, and BLE.
- Build and optimise secure, reliable device messaging using protocols such as MQTT, CoAP, HTTP, or WebSockets.
- Support reliable device time synchronisation using NTP or PTP.
- Device Security & OTA Management
- Contribute to secure boot flows, key and certificate provisioning, and hardware-backed device identity using TPMs or secure elements.
- Help build and maintain signed firmware update pipelines, including OTA update and rollback mechanisms.
- Support security best practices across the device lifecycle, including vulnerability management and secure provisioning.
- Edge & Cloud Integration
- Integrate devices with cloud IoT platforms and backend services.
- Define and improve telemetry, health monitoring, and observability for deployed devices.
- Support reliable operation of connected devices in the field, including debugging fleet issues and improving resilience.
- Compliance & Testing
- Support testing and validation for safety, EMC, radio, and related product requirements.
- Help prepare test plans, certification artefacts, and validation documentation.
- Work with manufacturing and cross-functional teams through engineering and production validation cycles.
- Cross-Functional Collaboration
- Work closely with firmware, hardware, power electronics, mechanical, and software teams to deliver production-ready devices.
- Contribute to design reviews, technical documentation, and interface specifications.
- Share knowledge and contribute to engineering best practices across connectivity, embedded systems, and device security.
Requirements:
- Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or equivalent practical experience.
- 5+ years of experience building connected embedded products, or strong relevant industry/project experience.
- Good proficiency in C/C++ for embedded systems, with experience working with RTOS environments such as Zephyr or FreeRTOS.
- Experience with Python for testing, tooling, or automation.
- Solid understanding of device connectivity and networking fundamentals, including IP networking and common transport/application protocols.
- Experience implementing or supporting secure device communications using TLS, certificates, or device provisioning workflows.
- Familiarity with firmware update systems, bootloaders, or CI/CD workflows for embedded software.
- Practical debugging experience using lab and software tools such as logic analysers, protocol analysers, network sniffers, or observability platforms.
- Strong problem-solving skills and the ability to work across hardware and software boundaries.
Nice to Have:
- Experience with low-power wireless technologies such as Thread, Zigbee, or 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.
- Awareness of relevant cybersecurity or privacy standards such as IEC 62443, ETSI EN 303 645, ISO 27001, or GDPR.
- Experience working on industrial, energy, or other distributed device deployments.
Benefits:
- Competitive salary and an equity sign-on bonus.
- Biannual bonus scheme.
- Fully expensed tech to match your needs.
- Paid annual leave.
- Breakfast and dinner allowance for office based employees.
Embedded Software Engineer (IoT) in London employer: Fuse Energy
Fuse Energy is an exceptional employer, offering a dynamic work environment where innovation meets opportunity. As an AI Compute Data Centre Engineer, you will be at the forefront of cutting-edge technology in the UK, with access to competitive salaries, biannual bonuses, and fully expensed tech. Our culture fosters professional growth and collaboration, ensuring that every team member can thrive and contribute to impactful projects.
StudySmarter Expert Advice🤫
We think this is how you could land Embedded Software Engineer (IoT) in London
✨Get Involved with Industry Events
The energy and utilities sector is always buzzing with events, trade shows, and networking opportunities. We should hit up conferences and exhibitions like Energy UK or Utility Week Live—these are prime spots to mingle with industry professionals and even snag some insider info on job openings!
✨Join Energy-focused Online Communities
Let's tap into online platforms and forums like LinkedIn groups or Reddit communities specifically for energy and utilities. Not only can we showcase our knowledge, but we can also stay updated on company announcements or job leads from people already in the know.
✨Consider Industry Certifications
Pushing ahead with certifications like the NEBOSH National Certificate in Occupational Safety and Health (if you’re into safety) can give us a leg up in this competitive field. It not only builds our credibility but also shows employers that we’re serious about our career in energy and utilities.
✨Apply ThroughFuse Energy's Website
Don’t forget to apply directly through Fuse Energy's website for the full-time Embedded Software Engineer (IoT) role. Many companies prioritise candidates who show initiative by going straight to the source. Make sure we tailor our application to highlight our passion for the energy sector!
We think you need these skills to ace Embedded Software Engineer (IoT) in London
Some tips for your application 🫡
Show Off Your Energy Knowledge:When crafting your CV and cover letter, make sure you highlight any knowledge or experience related to the energy-utilities sector. Whether it’s coursework, internships, or projects that showcase your understanding of energy management, sustainability, or regulatory frameworks, we want to see that passion and expertise shine through.
Quantify Your Achievements:In our field, numbers speak volumes! Don’t just tell us about your previous roles; quantify your achievements where possible. For instance, mention how you improved energy efficiency by a percentage or contributed to cost savings. This makes your application more compelling and shows us just how impactful you can be.
Tailor Your Cover Letter:Your cover letter is your chance to connect personally with us at Fuse Energy. Tailor it to reflect how your values align with our mission in the energy sector. Share why you're excited about this specific role and how you envision contributing to our goals.
Demonstrate Your Team Spirit:Collaboration is key in the energy-utilities industry. In your application, emphasise any team projects or experiences where you worked effectively with others, especially on sustainability initiatives or technical projects. We're looking for someone who can mesh well with our team!
How to prepare for a job interview at Fuse Energy
✨Show Your Passion for Renewable Energy
In the energy-utilities sector, it’s vital to demonstrate your enthusiasm for sustainable practices and innovations. Share experiences where you've worked on or studied renewable energy projects, whether that’s through coursework, past internships, or personal initiatives. Let us see how your passion aligns with the ethos of Fuse Energy.
✨Brush Up on Industry Regulations
Being familiar with industry standards and regulations is crucial in energy-utilities interviews. Make sure to know the basics of relevant policies and frameworks, like the Energy Act or environmental legislation. This will not only show you’ve done your homework but will also prepare you for potential technical questions about compliance during your interview.
✨Highlight Teamwork and Project Management Skills
Most roles in the energy sector involve collaboration with diverse teams. Be ready to discuss examples where you’ve successfully worked in teams or led projects, especially those involving energy initiatives. This is particularly important for a full-time position, as employers want to see you bring a collaborative spirit to Fuse Energy.
✨Prepare for Technical Assessments
Expect some technical questions or even practical assessments during your interview, especially about energy efficiency methodologies or basic engineering principles relevant to the role. It’s a good idea to brush up on key concepts and be prepared to explain them clearly, as this will demonstrate your technical proficiency and readiness to jump into your new role.
