Management Accountant

📈 Who We Are:

We are rebuilding the energy transaction, making it transparent and fair.

Our goal is to put power back where it belongs, in the hands of customers and to take on one of the most critical problems of our century, access to low cost electricity.

tem exists to fix a broken global energy market that’s long favoured legacy operators, intermediaries, and opaque pricing. Today’s electricity system was not designed for rapid decarbonisation, AI-driven efficiency or fair access for the actual users - businesses and generators.

We’ve built the first AI native transaction infrastructure to reinvent how electricity is bought, sold and priced. Our technology is designed to cut out the inefficient fees, automate complex market flows, and bring transparency and fairness to energy transactions at scale.

In late 2025, after extraordinary growth, we closed a $75 million Series B - led by Lightspeed Venture Partners with participation from Atomico, Allianz, Hitachi Ventures, Schroders Capital and others - positioning us for global expansion, deeper product innovation and category leadership.

We’re scaling internationally and building toward a future where AI-driven infrastructure is foundational to electricity markets worldwide.

Since launch, our modern utility product, known as RED, has already facilitated thousands of business customers and billions in energy transaction value, proving that modern software and AI can transform an industry built on legacy systems.

At tem, we’re not just building another energy company, we’re rearchitecting market infrastructure so that transparency, efficiency and sustainability become the default, not the exception.

🏅 The Role:

We’re hiring a Management Accountant to strengthen our FinOps team. You’ll be key to running a reliable, accurate and timely month-end close process, while improving the daily financial operations that keep the business running. This is a hands-on, impactful role with space to improve processes and bring automation where possible.

This is a crucial hire as we continue to grow — our current financial complexity, volume of data and number of payment operations mean we need someone smart and proactive in the seat now. The person in this role will take ownership of the monthly management accounts process, ideally becoming fully self-sufficient within three months. This unlocks bandwidth for the current team and ensures we’re able to operate at a higher level of accuracy, control, and speed.

🚀 Responsibilities

• Month-end close: Lead the management accounts process from start to finish, including accruals and prepayments.

• Accounting schedules: Maintain up-to-date accrual and prepayment schedules to support accurate reporting.

• Payments & invoicing: Support payment runs, track invoices, liaise with vendors, and ensure timely approvals.

• Reconciliations: Own reconciliations of key general ledger accounts each month.

• Variance analysis: Provide clear, concise commentary on variances and financial movements.

• Process improvement: Identify inefficiencies and opportunities to automate workflows across accounting operations.

• Collaboration: Work cross-functionally to gather accurate data and share insights.

• Audit: Support external audits with relevant data and analysis.

🎯 Requirements

Must haves

• Fully qualified accountant (e.g. ACCA, CIMA).

• 4–5 years’ experience post-qualification — including time in a practice AND in a startup or scale-up.

• Strong understanding of accruals, prepayments, reconciliations, and the overall month-end process.

• Excellent spreadsheet skills (Excel or Google Sheets), including pivots, lookups, and working with large datasets.

• Analytical thinker who can explain financial insights clearly to non-finance stakeholders.

• Comfortable working autonomously and taking ownership of key deliverables from day one.

Nice to haves

• Experience in fintech or payments (complex, regulated environments with high transaction volumes).

• Exposure to the energy sector is a plus, but not essential.

• Previous involvement in automating or improving finance processes.

• Experience working in high-growth, fast-paced teams.

✅ Success Measures

• Management accounts prepared and delivered independently by month 3.

• Key GL accounts reconciled monthly, with clear audit trails.

• Streamlined payments process and improved invoice visibility.

• Variance commentary delivered in time and understood by stakeholders.

✨ Benefits & Perks

• Salary aligned to internal benchmarks and reviewed twice a year.

• Stock options so everyone has ownership in our mission.

• 25 days holiday plus public holidays. Swap public holidays for the ones that matter most to you, and enjoy your birthday off.

• Remote first and flexible working, with clear core hours and no internal meetings on Friday afternoons.

Home working and wellbeing budgets:

• Up to £1,200 or €1,200 per year for your remote setup.

• Up to £150 or €150 per month for wellbeing.

🗣️ Interview Process

We move fast. Most processes take 2 to 3 weeks from first chat to offer. If you need us to adapt anything, let us know.

• Intro call with Talent, 30 minutes.

• Hiring Manager interview, 60 minutes.

• Skills interview with Finance [and cross-functional partners], 60 to 90 minutes, including a practical exercise.

• Culture Add interview with leadership stakeholders, 45 minutes.

We welcome applications from people of all backgrounds, experiences, and identities, including those that are traditionally underrepresented in the tech and energy sectors. If you’re excited about this role but not sure you meet every requirement, we’d still love to hear from you. Your unique perspective could be exactly what we’re looking for.