Software Engineer Equity at Axle Energy

Job Title

Software Engineer

Not Disclosed + Equity

Axle Energy is an Accel-backed, £8M+ seed-stage startup building the  Stripe for energy flexibility  through global B2B API infrastructure.

London, UK

• Ownership & Impact:
  Step into the arena against climate change by building the plumbing for a decarbonized grid, controlling tens of thousands of energy assets.
• Elite Backing:
  Backed by Accel with £8M+ raised, you will work alongside technical founders with Oxford PhDs in a fast-paced, flat-structure environment.
• Complex Engineering:
  Tackle hard technical challenges across the full VPP stack, including device integration, real-time control, and ML-driven grid optimization.

As a generalist Software Engineer at Axle Energy, you will build the core infrastructure connecting distributed energy devices to electricity markets. Working across product, devops, and data engineering, you’ll join a tight‑knit team of 15 to orchestrate thousands of assets like EVs and home batteries to accelerate the global energy transition.

• Build and maintain the core infrastructure that connects distributed energy devices like EVs and heat pumps to electricity markets.
• Design and deploy scalable Python backends on GCP to handle real-time control, market dispatch, and grid-aware optimization algorithms.
• Collaborate directly with founders and clients to iterate on the API infrastructure that enables third‑party device participation in energy markets.

• Proven production experience shipping B2B SaaS products using Python backends and cloud platforms like GCP or similar.
• A track record of solving deep technical problems in distributed systems, complex integrations, or high-traffic data pipelines at a scaling startup.
• Deep-seeded motivation to combat climate change and the courage to build fast, prioritizing real-world environmental impact over technical perfection.