---
title: 'Senior Backend Engineer - Pricing at tem'
canonical: 'https://feeny.ai/job/senior-backend-engineer-pricing-tem-europe-cz63s291gqsf'
type: 'job'
last_seen: '2026-11-08'
---

# Senior Backend Engineer - Pricing at tem

- **Company:** tem
- **Location:** Europe
- **Compensation:** £83k
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-10-06
- **Last confirmed live:** 2026-11-08
- **Apply:** https://jobs.ashbyhq.com/tem/1dbe845c-a1ec-4005-92c6-44dec63b2e44

## Job description

📈 Who We Are: We are rebuilding the energy transaction, making it transparent and fair. We're rebuilding how energy is bought and sold. That means cutting out middlemen, connecting businesses directly with renewable generators, and ensuring every transaction is traceable and transparent. We're a 160+ person team - operators, data scientists, engineers, customer champions and energy experts - backed by top-tier investors including Lightspeed Venture Partners, Hitachi Ventures, Allianz, AlbionVC and Atomico. We closed a $75M Series B round in early 2026, taking our total funding to $94M, and we now power energy for over 4,000 UK businesses across 8,500+ sites, with over £75m in value returned to businesses and generators so far. We're a technology company solving the energy industry, not an energy company. Some people call us a neo-utility, the neo-bank idea, applied to energy. The industry is noticing. We were crowned Europe's Most Exciting Tech Company at the [GP Bullhound Allstars awards](https://www.gpbullhound.com/articles/allstars-awards-2026-winners-announced/), came in at #6 on [LinkedIn's Top Startups 2026](https://www.linkedin.com/pulse/linkedin-top-startups-2026-20-uk-companies-rise-linkedin-news-uk-xoffc) in the UK, #7 on the [Scaling Europe 50](https://scalingeurope.co.uk/) of Europe's fastest-growing companies, and #14 on [Sifted's AI 100](https://lnkd.in/p/ehxWgJyc). Learn more about us on our [website](https://www.tem.energy/).

🎯 The Role We're hiring a Senior Backend Engineer, Pricing. You'll join the Pricing squad, the team behind the pricing engine at the heart of RED, tem's modern utility product. The systems you build price real energy contracts for businesses buying electricity and renewable generators selling it, so correctness shows up as money and speed shows up as trust. This is a backend, data-heavy engineering role with a quant-y flavour. You'll help build our new Pricing API, make prices fast, accurate and understandable, and make sure that when we can't price something, we can always explain why. In your first 12 months, you might:

- Design and ship core slices of our new Pricing API, taking them from first design through to production.
- Consolidate pricing logic into one service with a clean boundary, keeping pricing behaviour stable throughout the move.
- Build the detection and alerting that catches bad or slow prices before they ever reach a customer.
- Give our commercial team self-serve answers to "why can't we price this?".
- Make pricing measurably faster for every customer quote.

🛠️ Responsibilities

- Build with impact: design and ship components of the Pricing API that price real energy contracts, owning work from design through to production.
- Make it fast: help bring the time to a first customer price down dramatically, without sacrificing accuracy.
- Own reliability: build the error handling, observability and alerting that make pricing fail loudly and explainably, never silently.
- Sharpen the boundaries: extract and consolidate pricing logic so the pricing engine owns its own behaviour end-to-end.
- Close the loop: take your turn handling live pricing questions and incidents, and turn what you learn into structural fixes.

✅ Requirements Must-Haves

- Production backend Python: you have shipped and run an API in production and been on the hook when it broke.
- Comfortable with FastAPI and SQL, and with data- and analytics-heavy systems where the correctness of numbers matters.
- Product engineering nous: you ask what the price is for and who reads it, not just how to compute it.
- You build with agents: Claude or similar is part of your daily workflow for writing, testing and reviewing code.
- You can own a project end to end - scoping, delivery, quality - with a tech lead as a sounding board rather than a supervisor.

Desirable

- Domain knowledge from fintech, energy pricing or neo-utilities, or ad-tech.
- Experience working inside or alongside machine learning teams.
- AWS and serverless patterns (Lambda, event-driven services, Postgres on RDS).
- Polars, or a taste for making numerical code fast.

🎁 Benefits & Perks

- Competitive salary - our current band for this role is [salary band] or equivalent in local currency.
- 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.
- Up to GBP1,200 or EUR1,400 per year for your remote setup.
- Up to GBP150 or EUR170 per month for wellbeing.

🤝 Interview Process

- First call with Jack on our Talent Team (30m)
- Behaviour Interview with the Hiring Manager (60 mins)
- Technical Interview with the Team (75 mins). You'll meet with Engineers, discuss backend engineering for pricing systems, including a practical whiteboard exercise
- Bar Raiser Interview with Senior stakeholder (45m)

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.

## About tem

## Company Overview
- **One-liner**: tem is building an AI-native transaction infrastructure for energy markets, operating a modern utility (RED) that delivers cheaper, transparent electricity to businesses.
- **Entity Type**: Private (Series B)
- **Headquarters**: London, United Kingdom
- **Founded**: 2021
- **Founders**: Joe McDonald (Co-Founder & CEO), Ross Mackay (Co-Founder)

## Core Business
- **Primary industry**: Energy Technology / Energy Trading & Utility
- **Target customers**: B2B – primarily small-to-medium businesses and renewable generators; expanding to enterprise customers.
- **Mission**: “Universal access to the lowest-cost electricity” by reinventing how energy is bought and sold using AI.

## Products & Services
- **[RED](https://www.tem.energy/)**: A “neo-utility” experience for business customers. Provides transparent, 30% cheaper energy bills with half-hourly metering, no hidden fees, and a digital dashboard for usage and billing. Currently the only utility using tem’s infrastructure.
- **[Rosso](https://techcrunch.com/2026/02/09/tem-raises-75m-to-remake-electricity-markets-using-ai/)**: The core AI transaction engine that matches electricity generators with buyers. Uses machine learning and LLMs to predict supply/demand, automate trading, and remove intermediaries. Planned to be opened to other utilities in the future.

## Market Standing
- **Valuation**: Over $300 million (per a source familiar with the Series B deal, reported by TechCrunch, Feb 2026).
- **Key Metric**: Total funding raised – **$91.9M** (Pre-Seed, Seed, Series A, Series B).
- **Notable Investors/Partners**: Lightspeed Venture Partners (lead, Series B), Atomico (lead, Series A), AlbionVC, Allianz, Hitachi Ventures, Revent, Schroders Capital, Voyager Ventures.
- **Growth Signals**:
  - 6,000+ business sites now run on RED ([tem.energy](https://www.tem.energy/)).
  - Headcount: 99 employees (LinkedIn), with +7.3% monthly growth.
  - Customers include Boohoo Group, Fever-Tree, and Newcastle United FC.
  - 26 active job postings (as of mid-2025), with monthly job postings up 52.9%.
  - Plans to expand to Australia and Texas (US) using Series B funds.

## Competitive Advantages
- **AI-native infrastructure**: Replaces multiple human-driven trading desks and intermediaries with a single AI-powered transaction layer, drastically reducing costs and latency.
- **Transparency & pricing**: Customers save up to 30% on bills compared to wholesale market prices; bills are itemised with no hidden markups.
- **Marketplace dynamics**: Focus on decentralised renewable generators and small businesses creates an ideal environment for the algorithms, and the model scales to enterprise.
- **Dual business model**: RED proves the value of Rosso while generating revenue; Rosso is designed to become the AWS/Stripe of energy transactions.

## Strategic Focus
- **Near-term**: Scale RED in the UK, deepen customer base, and prove unit economics. Continue hiring across engineering, product, and growth.
- **Expansion**: Enter Australia and the US (starting with Texas) to replicate the model in deregulated markets.
- **Long-term**: Open Rosso to third-party utilities to capture all transaction flow, aiming to become the universal infrastructure for energy trading.

## Why Work Here
- **Culture**: Mission-driven team focused on solving climate and energy affordability through technology. Described as a “classic marketplace play” with a strong engineering ethos.
- **Remote-first**: Fully remote work environment (offices in UK but most employees work remotely).
- **Growth & impact**: High-growth startup with $91.9M in funding and a clear path to IPO (CEO has stated intention to go public). Employees have the opportunity to shape the future of energy markets.
- **Open roles**: 26 active positions including ML Engineering Lead, Staff Full Stack Engineer, Senior Analytics Engineer, Principal Product Designer, and more. Strong emphasis on technical talent (32% of workforce in technical roles).
- **Perks**: Not detailed, but the remote setup, equity in a fast-scaling company, and the chance to work on AI infrastructure for a critical industry are key draws.

## Sources
1. [tem.energy](https://www.tem.energy/)
2. [LinkedIn - tem](https://uk.linkedin.com/company/tem-energy)
3. [TechCrunch - Tem raises $75M](https://techcrunch.com/2026/02/09/tem-raises-75m-to-remake-electricity-markets-using-ai/)
4. [Built In - tem energy](https://builtin.com/company/tem)
5. [Ashby - tem jobs](https://jobs.ashbyhq.com/tem)

## Other roles at tem

- [Staff Product Manager - Rosso (Portfolio)](https://feeny.ai/job/staff-product-manager-rosso-portfolio-tem-united-kingdom-hk6a8gkg5ppv) — United Kingdom
- [Portfolio Risk and Treasury Manager](https://feeny.ai/job/portfolio-risk-and-treasury-manager-tem-united-kingdom-jchwsd3qk4g2) — United Kingdom
- [Senior Staff Engineer - Agentic](https://feeny.ai/job/senior-staff-engineer-agentic-tem-united-kingdom-jv88rb346zsc) — United Kingdom
- [Staff Data Analyst](https://feeny.ai/job/staff-data-analyst-tem-united-kingdom-73yt7xhhegg8) — United Kingdom
- [Staff Backend Engineer - Pricing](https://feeny.ai/job/staff-backend-engineer-pricing-tem-europe-673h7c7n2ek5) — Europe
- [Staff Full Stack Engineer - Sell Side](https://feeny.ai/job/staff-full-stack-engineer-sell-side-tem-europe-cj1b96pmdafp) — Europe
- [Tech Lead - Payments and Billing](https://feeny.ai/job/tech-lead-payments-and-billing-tem-united-kingdom-9ryv9awfrcad) — United Kingdom
- [Senior Staff Engineer - Payments](https://feeny.ai/job/senior-staff-engineer-payments-tem-united-kingdom-b5tsv8m8pyvp) — United Kingdom
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- [Campaign Manager](https://feeny.ai/job/campaign-manager-tem-united-kingdom-441rjtz1gaj7) — United Kingdom