Product Engineer; Backend,Full Stack Python,TypeScript,AWS | Climate Tech x Energy Tradin Job London area,Greater London England UK

Position: Product Engineer (Backend, Full Stack) | Python, Type Script, AWS | Climate Tech x Energy Tradin[...]
Location: Greater London

The Company

The energy industry is undergoing one of its biggest transformations in decades.

We're partnering with a well-funded, early-stage climate technology company building software that sits at the heart of the transition towards a cleaner, more intelligent electricity grid.

Rather than improving existing systems, they're building an entirely new platform from the ground up - combining real-time data, distributed hardware, AI, and energy trading to solve complex problems that have a genuine impact on the future of energy.

Still a small engineering team, they're at the stage where every engineer has a meaningful influence on the product, technical direction, and success of the business.

You’ll join a highly technical, product-focused engineering team building software that powers real-time operational and commercial decision-making.

This is a backend-first role (Python ≈70%) with exposure across the full stack, working on data-intensive systems where correctness, scalability and performance genuinely matter.

You’ll work across multiple product areas - from backend services and APIs through to customer-facing products, internal tooling and complex operational workflows.

Expect plenty of ownership, ambiguity, and the opportunity to solve difficult engineering problems from first principles.

Building and owning backend services in Python
Developing scalable APIs and data-heavy systems
Designing products that process large volumes of real-time information
Working closely with Product to deliver features end-to-end
Contributing across the stack where required (Type Script)
Building software that interacts with physical devices and operational systems
Improving reliability, performance and engineering standards as the platform scales

This is a fast-moving Product Engineering environment where engineers are trusted to own problems rather than simply deliver tickets.

Python
Type Script
AWS
Event-driven & distributed systems
CI/CD

2-6+ years of software engineering experience
Comfortable contributing across the full stack
Experience building data-heavy or highly numerical products
Product mindset with strong ownership
Comfortable operating in startup environments
Excellent problem-solving ability
Strong communication and collaboration skills

Nice to have:

Experience with in energy, trading or financial markets
Billing or payments platform experience
Maths, Physics or Engineering background
Evidence of exceptional technical achievement or deep personal passion for building products

This role will suit engineers who enjoy solving difficult business problems just as much as writing great code.

Introductory conversation
Technical pairing session
Final conversation with the founders

A collaborative interview process focused on real-world engineering rather than algorithm memorisation.

Why Join
- Product Engineer (Backend, Full Stack) | Python,…

Product Engineer; Backend, Full Stack Python, TypeScript, AWS | Climate Tech x Energy Tradin