User Experience Designer jobs in United Kingdom

Carno is a fast-growing climate tech startup building the operating system for the UK’s renewable energy installation industry.

Our platform streamlines surveys, design, quoting, and compliance workflows for renewable installers, cutting admin time by up to 90%. We’re backed by industry partners and already powering thousands of heat pump installations across the UK.

Our mission is to accelerate home decarbonisation at scale by empowering installers with world-class software.

We're hiring a Front-End Engineer (TypeScript / Angular) to help build the next generation of our installer platform. You'll craft high-quality UI experiences, integrate with modern cloud and microservice APIs, and help scale our product as we expand into new energy segments.

You'll work closely with our CPO and co-founder Adam, as well as Rob, our CTO, shipping features used daily by real installers delivering real renewable systems.

We need someone who thinks beyond the immediate code they're writing, understanding how their work fits into the wider system and how decisions today affect scalability tomorrow.

This is a hands-on engineering role with plenty of ownership and room for impact.

• Build new front-end features across our Angular and Ionic-based applications
• Translate Figma designs into polished, responsive UI components
• Work with advanced Angular patterns including dynamic component instantiation, mixins, and programmatic rendering
• Implement complex form rendering and state management solutions
• Work with RxJS, NgRx, Signals, and modern Angular 17+ patterns including Control Flow Syntax
• Integrate with REST APIs and OAuth 2.1-secured microservices
• Interact with CI / CD pipelines (AWS Lambda, Vercel)
• Collaborate with product, design, and engineering in an agile environment
• Maintain clean, modular code aligned with SOLID principles and best practices
• Work on new front-end interfaces for critical platform architecture, including our app / plugin ecosystem and marketplace

• Flexible, remote-first role with adaptable hours
• Occasional in-person collaboration at our Blackfriars HQ (if London-based)
• Direct collaboration with CTO, CEO, and CPO
• Fast-moving environment where your work ships quickly and impacts customers immediately
• High ownership of features, with autonomy to shape the product
• A supportive team that values transparency, feedback, and continuous improvement

• 4+ years in Typescript based frontend applications development (Angular)
• Strong understanding of dynamic rendering within Angular (ngComponentOutlet)
• Docker Experience for local development
• Strong experience with RxJS, NGRX Store and singleton state management patterns.
• Proficient in consuming RESTful APIs via OpenAPI specifications
• Authentication in Frontend frameworks (oAuth, PKCE)
• DevOps, Git, Jira, CI / CD Pipelines
• Understanding of non-functional requirements and development principles (SOLID, DRY, Clean Code)

• React / NextJS
• Ionic, Capacitor, or hybrid mobile frameworks
• AI / LLM
• ElasticSearch
• IOS / Swift exposure

• Strong analytical mindset and problem-solving ability
• Clear communicator with a collaborative approach
• Thrives in a startup environment, adaptable, reliable, and curious
• Commitment to quality, performance, and user experience
• Ability to see the bigger picture and understand how frontend architecture connects to backend systems

• 4+ years with Typescript (Angular + NextJS) & RXJS, 4+ years in software engineering teams