T

tem

Renewable energy solutions for UK businesses

People Performance Manager

Full-Time
No salary listed
Mid
Remote in UK
RemoteRemote first, with defined core working hours.
People & HRHR Generalist & Employee Relations

About the job

Requirements
  • You have held real accountability for people-related decisions, partnering with leaders or managing a team where hiring, performance, and exit calls were yours or made on your guidance.
  • You can be trusted with the hardest business conversations and are recognized for handling them well; you understand how people decisions shape culture and employer brand while balancing efficiency with empathy.
  • You have worked in or toward building a high-performance culture and can challenge confidently, carry conviction, and influence leadership decisions.
  • You are comfortable operating without a playbook in a company where requirements and the shape of the role change constantly.
  • You think from first principles, identify root causes in complex problems, weigh competing considerations, and anticipate second-order consequences.
  • You are fluent with Notion, automation, and AI tooling; you instinctively build repeatable solutions rather than repeatedly performing tasks manually, and you write clearly so readers understand the situation and next actions.
Responsibilities
  • Become the first point of contact for a portfolio of leaders on people matters, including performance decisions, team decisions, and difficult conversations.
  • Co-design progression, performance standards, evaluation, and reward frameworks with the Performance team.
  • Handle live cases end to end, including performance management, difficult conversations, exits, and restructures.
  • Coach and challenge leaders on people decisions, including providing a second view, coaching on situations, advising on employment law, and holding a position when you disagree.
  • Hold leaders to high standards on performance, potential, pay, and progression; help them make sharper decisions and ensure consistency across the assigned portfolio.
  • Shape employee progression, performance standards, evaluation, and reward in collaboration with the Performance team.
  • Design people frameworks around the organization’s outcomes, impact, and non-hierarchical structure.
  • Use AI and automation to automate repeatable operational work so time is focused on judgment rather than process.
  • Turn recurring employee and manager pain points into improved processes, tools, guidance, or self-service; measure effectiveness and redesign when needed.
Desired Qualifications
  • Employment relations experience in the UK, Europe, or the US.
  • Experience working across multiple countries, including employer-of-record arrangements.
  • Compensation and benchmarking experience, including salary banding, pay review cycles, and market data.

About the company

TEM Energy provides renewable energy solutions tailored for UK businesses, with a focus on sectors such as food manufacturing, brewing, and education. It works by partnering with renewable energy generators across wind, solar, hydro, biogas, and biomass to supply a reliable, clean power source through direct energy transactions and long-term contracts. The company differentiates itself by offering sector-focused, end-to-end support that helps clients transition smoothly to renewables, including insights and guidance to optimize energy use and costs. Its goal is to help UK businesses lower their energy bills and reduce their environmental footprint by access to renewable energy without compromising reliability.

Company Size

51-200

Company Stage

Series B

Total Funding

$92.3M

Headquarters

London, United Kingdom

Founded

2021

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Simplify's Take

What believers are saying

  • Tem closed a $75 million Series B on February 10, 2026, led by Lightspeed.
  • Tem expanded to Texas in August 2026 and is pursuing Australia next.
  • Customers say Tem cuts bills up to 30%, and Tem claims £40 million-plus savings.

What critics are saying

  • Texas REP certification still blocks U.S. revenue until approval lands, likely in 2026.
  • RED is the only utility using Rosso, so platform adoption remains single-channel dependent.
  • If generators or large buyers defect, Tem’s marketplace liquidity collapses and margins compress.

What makes tem unique

  • Tem’s Rosso automates electricity transactions with AI, replacing brokers and legacy desks.
  • RED bundles billing, usage, and pricing into one neo-utility for businesses.
  • Tem processed over 2TWh in 2025 across 6,000-plus UK sites, including Boohoo and Fever-Tree.

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Benefits

  • Remote Work Options
  • Flexible Work Hours
  • Paid Holidays
  • Stock Options
  • Home Office Stipend
  • Wellness Program

Company News

Energy Choice Matters
Aug 17th, 2026
UK AI energy scaleup Tem raises $75M, expands renewable platform to Texas

Tem-Energy Inc., a UK-based AI-powered retail energy company, is expanding to Texas and seeking a retail electric provider certificate. The company recently raised $75 million in a Series B round led by Lightspeed Venture Partners, with participation from Hitachi Ventures, Voyager Ventures, Schroders Capital, Allianz, AlbionVC, Atomico, and Revent. Tem connects non-residential customers directly with renewable energy generators through its RED platform, bypassing traditional wholesale markets. The company operates as an "energy transactions scaleup" and partners with licensed suppliers for compliance. Tem claims its model removes middlemen and hidden fees, resulting in prices 10 times lower than market price floors. The company uses half-hourly meter data for precise billing rather than monthly averages. It states that 30 per cent of business energy bills typically pay for inefficiency and fees rather than actual generation or transmission.

CFOTECH
Jul 22nd, 2026
Tem appoints Claire Addison as Chief of Staff after $75M Series B funding

Tem has appointed Claire Addison as Chief of Staff following its $75 million Series B funding round led by Lightspeed. The electricity market technology company raised the oversubscribed round to support UK expansion and international growth, particularly in Texas. Addison joins from Flexitricity, where she spent seven years working on regulation, policy and market reform. She previously worked at AES Corporation on commercial battery storage systems. At Tem, she will lead relationships with governments and regulators whilst overseeing compliance and market entry strategy. Tem's Rosso platform aims to replace the existing electricity trading structure with direct pricing and contracting. The company has facilitated over 5TWh of energy transactions across more than 7,000 UK sites, returning over $50 million in transaction fees to customers including Boohoo Group and Newcastle United.

The Next Web
Feb 10th, 2026
Tem raises $75 M to automate energy markets with AI-first platform

Tem raises $75 M to automate energy markets with ai-first platform. London-based energy software startup secures a major Series B to scale its AI-native transaction engine February 10, 2026 - 9:24 am London-based energy software company Tem has closed a $75 million Series B round led by Lightspeed Venture Partners, with additional funding from AlbionVC, Atomico, Hitachi Ventures, Schroders Capital, Voyager Ventures, Allianz, and others. The round reportedly values the company at more than $300 million and will fund its expansion into the United States and Australia. Tem builds an AI-native energy platform designed to automate the pricing, matching, and execution of electricity transactions, a market that has long relied on manual processes and legacy infrastructure. Its core system uses machine learning to forecast supply and demand, match buyers with suppliers, and reduce the layers of intermediaries that typically add cost and complexity. According to Tem, more than 2,600 businesses in the UK are already on its platform, with customers reporting energy cost savings of up to 30 per cent compared with traditional procurement approaches. The startup also handled roughly two terawatt-hours of electricity transactions in 2025, a volume it says demonstrates growing demand for automated energy market infrastructure. Tem's approach is often described as bringing modern software-first tools to a sector still dominated by brokers, manual trading desks, and outdated systems. By replacing fragmented legacy workflows with a unified AI-driven engine, the company aims to make energy markets more efficient while giving businesses clearer price signals and lower transaction fees. With the new funding, Tem plans to accelerate its global footprint, beginning with key energy markets such as Texas in the United States and select regions in Australia, where grid modernisation and renewable integration are creating fresh demand for flexible energy trading tools.

RocketNews
Feb 10th, 2026
Tem raises $75M to remake electricity markets using AI

Tem raises $75M to remake electricity markets using AI. As AI data centers drive up electricity prices, London-based startup Tem thinks AI might be able to help solve it, too. Tem has built an energy transaction engine that relies on AI to cut prices relative to other energy traders. The company has signed up more than 2,600 business customers throughout the U.K. on the promise that buying energy from its utility division can save them up to 30% on their energy bills. The startup recently closed an oversubscribed $75 million Series B led by Lightspeed Venture Partners with participation from AlbionVC, Allianz, Atomico, Hitachi Ventures, Revent, Schroders Capital, and Voyager Ventures, TechCrunch has exclusively learned. The round values Tem at more than $300 million, a source familiar with the deal told TechCrunch. The startup plans to use the funding to help expand to Australia and the U.S., starting with Texas. "We're in a nice position where we kind of have control over our own profitability. So I could have chosen not to raise at all and had a lovely, nice bootstrap business in some ways," Joe McDonald, co-founder and CEO of Tem, told TechCrunch. "Well, we're not that kind of business. We know what we want to achieve as someone who wants to go public over the years." Tem is a classic marketplace play, matching electricity generators with consumers. The company intentionally started by focusing almost exclusively on renewable energy generators and small businesses to fill both sides of the ledger. "The more decentralized and the more distributed, the better it is for the algorithms," McDonald said. "But this works all the way up to enterprise." The company's customers include fast-fashion retailer Boohoo Group, soft drink company Fever-Tree, and Newcastle United FC.

TechCrunch
Feb 10th, 2026
London's Tem raises $75M to cut electricity costs using AI-powered transaction engine

London-based startup Tem has raised $75 million in a Series B round led by Lightspeed Venture Partners, valuing the company at over $300 million. The startup has built an AI-powered energy transaction engine that promises to cut electricity costs for businesses by up to 30%. Tem operates as a marketplace matching electricity generators with consumers, currently serving over 2,600 UK business customers including Boohoo Group, Fever-Tree and Newcastle United FC. Its Rosso platform uses machine learning and large language models to predict supply and demand whilst eliminating intermediaries in energy markets. The company also runs RED, a utility division proving Rosso's value. Tem plans to use the funding to expand into Australia and the US, starting with Texas, and eventually open its infrastructure to other utilities.