Finance Intern

Finance Intern

Fuse Energy · London, United Kingdom · Full-time · Posted 2026-11-06

Workplace: on_site

Description

Fuse Energy is an energy startup 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, using AI across the business, 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.

As a Finance Intern you'll do real work from day one, alongside a team that came from top banks, funds and startups. This isn't a back-office finance team: we sit right next to the business, across operations, deals and everything in between. You'll get rare ownership and exposure for an internship, and a real chance to earn a full-time seat. The internship runs as two tracks: Business Operations or Corporate Finance.

Responsibilities

• Cost: Take ownership of daily invoice reconciliations, investigating discrepancies, understanding the drivers behind business expenditure and benchmarking costs to ensure the business is securing the best possible deals. Identify opportunities to reduce costs, improve commercial terms and drive greater efficiency across the business. Alongside this, contribute to wider projects focused on cost optimisation, working closely with the strategy, M&A and finance systems teams. Take a proactive and creative approach to problem-solving, thinking outside the box and taking ownership of challenges and opportunities as they arise.
• Financial Planning & Analysis (FP&A): Take ownership of daily bank reconciliations, matching invoices against the general ledger to ensure accuracy and consistency across financial records. Drive the development of automations, scripts and internal tools to streamline treasury, accounting and reporting processes, reducing manual work and improving efficiency. Build and maintain the company's P&L, balance sheet and cash flow reporting, developing automated coding processes and reliable, largely self-running reporting pipelines. Help establish and strengthen the underlying data and systems infrastructure that supports the company's tax, audit and compliance requirements.

Requirements

• Final-year student, or recent graduate, in engineering, maths or another STEM discipline
• Very strong first-principles thinking
• Comfortable in a fast, ambiguous, high-intensity environment
• Analytical, structured and proactive, someone who takes ownership and chases things down
• A genuine interest in the track you're applying for, whether operations and process or deals and financing
• Strong financial modelling and Excel skills
• Bonus: a prior internship in banking, investing, consulting, accounting or a startup finance team; for Corporate Finance, exposure to M&A, financing or strategy; for Business Operations, coding, process and automation

Benefits

• Competitive salary
• Fully expensed tech to match your needs
• Breakfast and dinner allowance for office-based employees

As we hire globally, benefits vary by location.

Apply

Apply at Fuse Energy

---

Powered by Workable