Senior/Lead Backend Engineer
Fuse Energy UK
Senior/Lead Backend Engineer
Fuse Energy UK
Vertically integrated energy: generation, trading, retail
Fuse Energy · London, United Kingdom (Hybrid) · Full-time · Posted 2026-08-24
Workplace: hybrid
Fuse is an AI-first energy company on a mission to make energy abundant and affordable, fast. We combine first-principles thinking with cutting-edge technology to build a radically better energy system.
We've raised over $200M from top-tier investors including Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, 20VC, Hummingbird and Collaborative Fund, alongside strategic angels including Nico Rosberg and GPs behind Meta, Revolut, Spotify and Uber.
We're building a fully integrated energy company: developing our own solar, batteries and other generation projects, building our own hardware, improving and developing grid infrastructure, trading power in real time, and installing distributed energy in homes. By selling directly to consumers, we cut out the middleman, lower costs and pass the savings on to our customers.
We're hiring a Senior/Lead Backend Engineer to build the core digital infrastructure for a next-generation energy company. You'll work closely with product across the full back-end and engineer backend systems that are second to none.
Own systems end-to-end, from design and architecture through to production, with a high degree of autonomy as an individual contributor. Responsibilities include, but are not limited to:
Building the inference layer for our AI workloads, serving millions of prompts per day across customer support and meter-reading OCR, and migrate workloads onto our own GPU infrastructure.
3+ years of software engineering experience, with requirements varying by role level, from individual contributor to lead.
Proven ability to define and build complex systems
As we hire globally, benefits vary by location.
Powered by Workable
Vertically integrated energy: generation, trading, retail
Fuse Energy UK is a London-based energy company that handles renewable generation, trading, and retail supply for households and businesses in a single chain. It owns and operates solar and wind farms, trades electricity to balance supply and price, and sells energy directly to customers, reinvesting profits into new renewable projects. Its edge comes from being vertically integrated across generation, trading, and retail, with strong backing from investors and a leadership team formerly at Revolut. Its goal is to grow its UK customer base and expand into Ireland, Spain, and the US while scaling up renewable capacity.
Explore more opportunities at Fuse Energy UK