Software Engineering Manager - Flex

ENSEK builds the cloud‑native SaaS software that’s transforming how energy retailers operate, innovate and manage at scale.

We help retailers lower operating costs, improve billing accuracy for consumers, and enhance customer experience through automation and AI‑driven insight, all underpinned by modern, cloud‑native architecture.

ENSEK is at an exciting inflection point as we scale at pace towards new international horizons. If you’re driven by solving complex, real‑world problems and want to build modern technology that accelerates the global energy transition, you’ll feel right at home with us.

Flex is a platform that makes every home or business with solar, batteries or EVs earn from them, while protecting the grid. It decides when batteries, EVs, solar panels and heat pumps charge, use their energy or export to the grid, so each device delivers as much value as possible.

Flex is central to ENSEK's growth strategy and a key differentiator in the market, and we're investing in both our product and our people. We're bringing teams together across the UK and Europe, so you'll help shape how we work as one team, alongside experienced engineering and product leaders, on a product with real strategic importance to the business.

About the role

We are looking for an experienced Engineering Manager to lead a team within Flex and help us build the right products in the right way. Reporting to the Engineering Director, you'll be responsible for creating a high-performing engineering environment where people can thrive, grow, and deliver meaningful outcomes for customers.

This is not a delivery management role. We're looking for a technically credible engineering leader who can coach engineers, challenge technical decisions, drive engineering quality, and partner closely with Product to shape solutions that solve real customer problems.

You'll lead a team of around 7-8 engineers and work closely with the Flex Product Director, fellow Engineering Managers, Staff Engineers, and the wider leadership team. You'll play a key role in strengthening the partnership between Engineering and Product, ensuring teams remain focused on delivering commercially valuable outcomes rather than simply shipping features.

As the Flex and DSR organisations continue to integrate, you'll also help shape the future team model and contribute to the growth and evolution of the wider engineering organisation.

Success in this role will be measured through the health and development of your team, sustained delivery performance, strong product partnership, and your contribution to building an effective engineering organisation that can support Flex's continued growth.

Key responsibilities

Team Leadership: hiring exceptional talent, developing engineers through meaningful 1:1s, coaching and career pathways, and creating a culture of ownership, accountability and high standards.

Delivery & Planning : Drive clarity and predictability. Own sprint planning, backlog prioritisation and execution in partnership with Product, ensuring the team consistently delivers valuable, high‑quality features and fixes at pace.

Engineering Excellence: Raise the engineering bar. Champion best‑in‑class design, testing, code review and CI/CD practices to ensure the team ships maintainable, dependable and well‑engineered software.

Technical Ownership: Provide strong technical leadership. Shape architectural decisions, make pragmatic trade‑offs, and partner with architects and SRE to build scalable, secure and observable systems.