Staff Backend Engineer - Pricing

The role

You will build and manage the Pricing API behind the RED utility product. You will focus on backend and data-heavy systems to ensure pricing correctness and reliability.

What you will do

• Build and iteration of the Pricing API
• Run the extraction of pricing logic into its own service
• Design systems to detect pricing errors and explain prices
• Lift engineering standards through design reviews and pairing
• Act as the go-to engineer for live pricing incidents

Required qualifications

• Deep production backend Python
• Experience designing and owning APIs at scale
• Experience leading a significant decoupling or migration of a live system
• Strong FastAPI and SQL
• Experience in data and analytics-heavy systems
• Ability to set technical direction across teams you don't manage
• Ability to negotiate service boundaries with neighbouring teams
• Agent-native with experience designing multi-agent workflows
• Product engineering judgement

Nice to have

• Domain knowledge from energy pricing, fintech or neo-utilities
• Experience building APIs consumed by external third parties
• AWS and serverless patterns (Lambda, event-driven services, Postgres on RDS)
• Polars, or a track record of making numerical code fast

Benefits

• Stock options
• 25 days holiday plus public holidays
• Swap public holidays for the ones that matter most to you
• Birthday off
• Remote first and flexible working
• 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

About the company

tem is a technology company rebuilding the energy transaction to be transparent and fair. They power energy for over 4,000 UK businesses across 8,500+ sites.