Fuse Energy

Electronics Design Engineer

Join Fuse Energy in London as an Electronics Design Engineer. Develop core electronics for solar products, collaborating across teams to deliver scalable renewable energy hardware. Enjoy competitive salary, equity bonus, and tech allowances in a fast-growing startup.
Fuse Energy
Fuse Energy
London, United Kingdom On-site Full time UTC+01:00

Fuse Energy

Company Overview

Fuse Energy

London, United Kingdom

2022

Approximately 50 employees with €76 million in annualised revenue (source: welcometothejungle.com)

What They Do

Fuse Energy is a London-based energy company that began in 2022 focused on supplying cheaper electricity and building renewable generation assets. It operates two related businesses: a retail electricity supplier targeting homes with low-cost tariffs and a digital-first, app-based customer experience, and a B2B energy services arm that supports businesses, nonprofits, and municipalities with energy procurement, fixed-rate supply, and community solar solutions (source: fuseenergy.com) (source: fuseenergygroup.com). The company’s technology focus centers on solar farm development, data science for demand forecasting, and grid-market participation rather than a single hardware platform, enabling it to optimize power purchasing and supply balancing (source: welcometothejungle.com). Fuse Energy’s vertically integrated model combines solar generation with software-led customer operations to deliver cheaper, greener energy to price-sensitive residential and commercial customers (source: welcometothejungle.com).

Projects & Track Record

Fuse Energy’s project portfolio is focused on solar farm development and power-market operations rather than large, named utility-scale assets with published capacity ratings. The company has built solar farms to provide cheap renewable energy and offers community solar and energy procurement services to its customers (source: welcometothejungle.com) (source: fuseenergygroup.com). It currently supplies electricity to approximately 50,000 homes and is actively planning expansion into Ireland, Europe, and the United States (source: welcometothejungle.com). On the commercial side, Fuse Energy Group works with businesses, nonprofits, and municipalities, and is developing retail energy channel partnerships to broaden its market reach (source: fuseenergygroup.com).

Recent Developments

Fuse Energy has experienced rapid growth and significant funding milestones in recent years. The company completed a $10 million early-stage venture capital round in July 2025, followed by a $100 million late-stage round in November 2025, fueling its expansion plans (source: welcometothejungle.com). It reported €76 million in annualised revenue with 7x year-on-year growth, reflecting strong market traction and operational scaling (source: welcometothejungle.com). The company is actively expanding its footprint beyond the UK into Ireland, broader Europe, and the US markets (source: welcometothejungle.com).

Working There

Fuse Energy hires across a diverse range of roles including engineering, operations, solar development, commercial functions, and software development. Current and past job openings include Senior Backend Engineer, Mechanical Engineer, Firmware Engineer, Engineering Manager for Solar EPC, Senior Front-End Engineer, Brand Designer, Growth roles, AI Operations Manager, and Site Manager for Solar EPC (source: workable.com) (source: welcometothejungle.com). The company also recruits for commercial retail energy channel partner managers, indicating a focus on expanding business partnerships (source: fuseenergygroup.com). Fuse promotes a fast-moving startup culture characterized by "fair wages," "long hours," "high voltage," and offers stock options, reflecting a high-energy environment with growth opportunities (source: f.energy).


Last updated on May 19, 2026 | Report an issue

Job Description

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 that rewards users in Energy Dollars for electrifying their 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.

As we continue to develop cutting-edge technologies and sustainable energy solutions, we are looking to hire a versatile Electronics Design Engineer to help us develop the core electronics behind our plug-and-play solar products. This role focuses on designing robust, scalable electrical systems that enable safe, efficient, and reliable renewable energy hardware.

Responsibilities

  • Own end-to-end electrical development, including requirements definition, specification, design execution, simulation, schematic capture, PCB layout, DFM iteration, board bring-up, system integration, and validation
  • Design and develop electronics for renewable energy systems, including power conversion, sensing, control, and communications functions
  • Collaborate closely with firmware, mechanical, controls, PCB layout, program management, validation, and manufacturing teams to deliver high-performance hardware
  • Debug hardware issues and system-level interactions in a fast-moving, multidisciplinary development environment
  • Produce clear and thorough technical documentation, including design requirements, calculations, test plans, validation results, and design reviews
  • Support prototype builds, industrialization, supplier engagement, and production ramp activities
  • Rapidly iterate designs as requirements evolve and product features mature over time

Requirements

  • Strong understanding of power electronics and circuit design, including dc/dc converters, inverters, battery-powered systems, power switching devices, gate drivers, magnetics, and loss modeling/calculation
  • Strong understanding of analog and digital circuit design, including microcontrollers, signal conditioning, common communications interfaces, component selection, and thermal/power dissipation considerations
  • Experience with PCB design and layout for mixed power and signal systems, including minimizing parasitics and designing for EMI/EMC performance
  • Experience with circuit board design tools, ideally Altium Designer
  • Proficiency with lab equipment such as oscilloscopes, electronic loads, signal generators, LCR meters, and power analyzers
  • Experience with hardware bring-up, validation, debugging, and root-cause analysis
  • Familiarity with modeling and simulation tools such as LTspice, PLECS, or similar
  • Basic scripting or programming ability, ideally in Python or MATLAB
  • Basic knowledge of embedded systems, PWM, and control concepts for power conversion
  • Experience supporting products through manufacturing and high-volume production is a plus
  • Bachelor's, Master's, or PhD in Electrical Engineering or a related field, or equivalent practical experience

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

Apply now

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About the role

April 30, 2026

Full time

Company

June 13, 2026

On-site

Solar Energy , Wind Energy , Energy Storage , Hydrogen , Smart Grid

Fuse Energy

fuseenergy.com

  •  London, United Kingdom

Bachelor's, Master's, or PhD in Electrical Engineering or related field, or equivalent practical experience

UTC+01:00