£75,000 to £100,000 + Bonus (~10%)Hybrid: 1 to 2 Days Onsite (Oxfordshire Area)Must Be Commutable

We are working with a rapidly growing technology business in the energy sector, scaling at 40% year on year and about to onboard several major new clients. They are now looking for a Lead Developer who wants to step into genuine engineering leadership, with a clear path into Software Engineering Manager and longer-term CTO-level responsibility as the business evolves.

The company was originally spun out of a well-known energy organisation by two highly skilled senior developers who have successfully launched multiple businesses. As they step back from day-to-day leadership over the next 12 months, this role will become the central technical leadership position in the organisation.

This role has two phases:

• Lead development across a modern, serverless cloud stack (AWS, Python, React, SQL).

• Work closely with the senior developers while contributing hands-on.

• Take ownership of development standards, technical decision-making and tooling.

• Support agile delivery within small, self-managing teams.

• Grow, mentor and manage multiple development teams (approx. 3 teams of 3).

• Coach junior developers and guide technical career paths.

• Shape the engineering culture, best-practice processes and delivery frameworks.

• Take increasing ownership of technical strategy as the founders step back.

This is a perfect role for a Lead Developer or Senior Developer who enjoys leading people and wants a realistic path into Engineering Management and eventually CTO-level ownership.

• Experience leading or managing developers.

• Proven mentoring, coaching or developing junior engineers.

• Comfortable shaping best practices, processes and team culture.

Experience with any of the following is beneficial (they are open-minded):

• Python

• AWS serverless (Lambda, S3, SQS, API Gateway)

• React / JavaScript

• REST APIs

• SQL

Strong back-end or cloud developers from other stacks will still be considered.

Beneficial but not essential.

• Join a fast-growing business with major new clients.

• Direct mentorship from highly experienced senior developers and founders.

• Opportunity to shape the future engineering organisation.

• Clear, credible route to Engineering Manager to CTO-level leadership.

• Hybrid working with flexibi