Lead Full Stack Engineer

Job title: Lead Full Stack Software Engineer - Contract
Type: Full-time, Contract
Location: UK, with flexible home, office, or hybrid working

You will act as the technical lead for a small, focused product team building a next-generation energy modelling platform. You will guide architectural decisions, support engineers day-to-day, and help the team deliver high-quality features at pace.

• Lead technical direction, making pragmatic architectural decisions that balance rapid progress with long-term maintainability.
• Work hands-on across the stack to turn prototypes and product flows into robust, production-ready software.
• Partner with designers, product managers and data specialists to refine requirements and translate complex concepts into workable solutions.
• Provide mentorship and support to other engineers through pairing, code reviews and clear technical guidance.

• This is a key role within a strategic product team working on a complex, high-visibility platform. You will have real influence over how the product is built and the engineering standards it is built on.
• Own the technical approach for a new product as it moves from prototype to full-scale build.
• Work in a modern, cross-functional environment with autonomy and the opportunity to take on technical leadership.
• Solve interesting challenges that blend UI, business logic, modelling and AI-driven behaviour.
• Enjoy the stability of a permanent role while contributing to a long-term, impactful product initiative.

We’re an outcome-driven product consultancy where product, design and research sit side by side. You’ll join a team that values curiosity, collaboration and impact, building products that truly matter.

We're tech-agnostic; however, these are our specialisms:

• Front-end:
  React, Next.js, Type Script
• Backend:
  Python, PHP
• Cloud and infrastructure: AWS

• Significant experience as a senior or lead engineer
• Strong background with React and Type Script
• Strong background with Python or PHP

Submit your application below. Please note that we’re unable to offer visa sponsorship for this role.