2nd Line IT Engineer (Network Engineering)
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.
We are looking for a hands-on and technically skilled 2nd Line IT Engineer with strong Network Engineering experience to keep Fuse running at full speed. You will own the day-to-day technical environment across two office locations, ensuring our networks, infrastructure and end-user hardware operate reliably so we can focus on building the future of energy. The ideal candidate is a problem-solver who thrives in a fast-paced environment, and is comfortable owning issues end-to-end, from conferencing hardware to a firewall policy change.
Responsibilities
You will manage the networks, on-site infrastructure and hardware that our team relies on every day and will work closely with the wider IT and engineering teams to design, deploy, secure and support our environment.
- Work across our London based offices, external sites and our growing cloud presence
- Administer, manage and update our office networks, firewalls and internet related infrastructure.
- Build and maintain our on-premise servers and storage infrastructure
- Own all office hardware problems: laptops, meeting room AV and printers
- Provide 2nd line support and assist in onboard/offboard staff
Requirements
- Proven 2nd line IT experience with network engineering responsibilities
- Cisco networking experience with a CCNA (or equivalent)
- Hands-on experience configuring and managing FortiGate firewalls
- Strong grasp of core networking (TCP/IP, routing, switching, VLANs, VPNs, Wi-Fi)
- Confident supporting on-site servers and end-user hardware (Windows/macOS)
Desirable
- Experience supporting IT in a SaaS environment
- AWS cloud experience
- Additional networking or security certifications (e.g. CCNP, Fortinet NSE)
Benefits
- Biannual bonus scheme
- Fully expensed tech to match your needs
- Paid annual leave
- Breakfast and dinner allowance for office based employees
Apply now
Job expired?Please let Fuse Energy know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
Apply now
Job expired?Please let Fuse Energy know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
See how you’re connected
View connectionsSee your contacts at Fuse Energy on LinkedIn and tap your network when applying for this position.
Get job alerts
Get alerts for Cybersecurity jobs in London, United Kingdom
Join Talent Pool
Let clean energy employers find you
About the role
May 7, 2026
Full time
Company
- London, United Kingdom
Proven 2nd line IT experience
UTC+00:00
