backend developer for energy pricing

tem is rebuilding the global energy market with AI-native transaction infrastructure that makes electricity buying, selling, and pricing more transparent and efficient. Its modern utility product, RED, serves business customers and renewable generators.

• Build and iterate on the Pricing API to make it fast, correct, and ready for third-party access
• Lead the extraction of pricing logic into its own service, agreeing on clean boundaries with neighbouring teams
• Design systems to detect pricing errors, stop bad quotes from reaching customers, and explain prices that cannot be provided
• Raise engineering standards through design reviews, engineering standards, pairing, and multi-agent workflows
• Handle escalated live pricing incidents and turn lessons into structural roadmap fixes
• Build and manage the Pricing API behind RED, ensuring its performance and reliability
• Shape the new Pricing API and separate pricing from surrounding systems
• Make pricing measurably faster for every customer quote

• Deep production backend Python experience, including designing and owning APIs at scale and handling escalations when they break
• Experience leading a significant decoupling or migration of a live system without breaking dependent systems
• Strong FastAPI and SQL skills, with experience in data- and analytics-heavy systems where numerical correctness affects money
• Ability to set technical direction across teams and negotiate service boundaries with neighbouring teams
• Experience designing multi-agent workflows that improve team throughput; daily use of Claude or similar
• Product engineering judgement and ability to balance speed, accuracy, and explainability
• Будет плюсом: energy pricing, fintech, or neo-utilities domain knowledge, APIs for external third parties, AWS and serverless patterns including Lambda, event-driven services, and Postgres on RDS, Polars, or a track record of making numerical code fast

• Stock options
• 25 Days of holiday plus public holidays; public holidays can be swapped, and employees get their birthday off
• Flexible working with clear core hours and no internal meetings on Friday afternoons
• Up to GBP1,200 or EUR1,400 per year for remote setup
• Up to GBP150 or EUR170 per month for wellbeing
• The technical interview includes a practical exercise