Frontend Engineer - Utilities in London

Help us use technology to make a big green dent in the universe! Kraken powers some of the most innovative global developments in energy. We’re a technology company focused on creating a smart, sustainable energy system. From optimising renewable generation, creating a more intelligent grid and enabling utilities to provide excellent customer experiences, our operating system for energy is transforming the industry around the world in a way that benefits everyone. It’s a really exciting time in energy. Help us make a real impact on shaping a better, more sustainable future.

Our tech platform ‘Kraken’ is already licensed to support 55 million customer accounts globally, and we aim to serve 100 million by 2027. Kraken is the most AI-driven, innovative, forward-thinking platform for energy management. From optimising resources to delivering cost-effective, exceptional customer experiences through advanced Customer Information Systems (CIS), billing, meter data management, CRM, and AI-driven communications.

We’re now charging the Kraken platform to other utility industries (Water and Broadband) and have created a new team called Kraken Utilities. Over the last 3 years we have built this team from scratch to re-architect, design, and develop our Kraken software platform to solve complex industry wide problems within the water and broadband sectors (such as customer experience & water leak detection). The Kraken Utilities team is in a very exciting growth phase, and has already signed six key clients: Severn Trent, Leep, Portsmouth Water, Essential Energy, TalkTalk, and Cuckoo. We are currently 120+ people strong globally.

This is a junior frontend engineer role, ideal for someone early in their career who wants to grow their skills while contributing to a real, high‑impact product. You’ll work primarily on our frontend codebase, supported by experienced engineers who will mentor you and help you develop strong engineering fundamentals.

What you'll do:

• Build and maintain user‑facing features using TypeScript, JavaScript and Next.js (React)
• Work with GraphQL APIs to power frontend journeys
• Contribute production code to a large, shared codebase with support from senior engineers
• Participate in code reviews, design discussions and team retrospectives
• Collaborate closely with backend engineers to shape APIs and customer journeys
• Work with a shared design system (currently third-party UI Framework)
• Occasionally interact with client stakeholders alongside senior team members
• Communicate progress, risks and blockers clearly and early

What you'll need:

• Some commercial or practical experience building frontend applications (or strong project experience)
• Working knowledge of JavaScript / TypeScript; experience with React (Next.js experience is a bonus, not a requirement)
• Familiarity with Git and modern development workflows
• A collaborative mindset and strong communication skills
• Curiosity and willingness to learn

Nice‑to‑have:

• Exposure to Next.js or server‑side rendering concepts
• Experience consuming APIs (REST or GraphQL)
• Familiarity with design systems or component libraries
• Interest in learning more about backend or full‑stack development

How the team works:

• We work as a single, collaborative team of frontend and backend engineers, sharing ownership rather than siloing responsibilities
• Engineers regularly pair, review each other’s work and discuss design decisions openly
• We value clear, early communication over perfection — raising questions or blockers early is encouraged
• The team rotates across different areas of the product to help everyone build context and avoid single points of knowledge
• Mentorship is a core part of the team culture, with senior engineers actively supporting junior engineers’ development
• Responsible use of AI tooling is supported, with an emphasis on learning and code quality

We would prefer someone who can work in our London office on a hybrid remote policy of 1-2 days a week onsite. You do need to be able to work in the UK.

Kraken is a certified Great Place to Work in France, Germany, Spain, Japan and Australia. In the UK we are one of the Best Workplaces on Glassdoor with a score of 4.7. Check out our Welcome to the Jungle site to learn more about our teams and culture.

Are you ready for a career with us? We want to ensure you have all the tools and environment you need to unleash your potential. If you have any specific accommodations or a unique preference, please contact us and we'll do what we can to customise your interview process for comfort and maximum magic!

Our equal opportunity statement: Kraken is an equal opportunity employer. We do not discriminate on the basis of protected attributes and consider all applicants regardless of race, colour, religion, national origin, age, sex, gender identity or expression, sexual orientation, marital or veteran status, disability, or any other legally protected status.

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