Mid-Level Full-Stack Developer

Full-time, London

We are hiring a mid-level Full-Stack Developer to join the studio’s engineering team. This role is hands-on and delivery-focused. You’ll build and ship both the frontend and backend of studio projects, splitting your time between new feature work and improving what we’ve already shipped. You’ll work closely with design and production to turn high-fidelity concepts into real, working products across web and mobile platforms — playing a direct role in how our connected experiences look, feel, and perform for some of the world’s biggest brands. You are accountable for the quality and craft of what you build, keeping codebases healthy as requirements layer on top of each other, and making sure what ships matches design intent without needing late-stage rework.

Roles & responsibilities
  • Build and ship new features across client and internal products, working across the full stack
  • Maintain, refactor, and improve existing codebases across the studio’s project portfolio
  • Contribute directly to critical-path code, prototypes, and code reviews
  • Design and build APIs using Express and/or Next.js (API routes and server actions)
  • Handle data modelling, authentication, and integration with third-party services
  • Work with a combination of SQL and NoSQL database solutions
  • Work directly with designers through Figma handoff and review
  • Translate high-fidelity designs into accurate, responsive UIs
  • Build fully accessible UIs from the ground up, rather than adding accessibility as an afterthought
  • Write and maintain automated tests (Jest, Cypress, etc.) across frontend and backend
  • Contribute to and help evolve the studio’s design system, ensuring consistent standards across projects
  • Integrate with REST, GraphQL, and SOAP APIs to connect our apps to the range of services our clients use
  • Participate in code reviews, sprint planning, and technical discussions
  • Work across multiple concurrent projects, balancing speed with craft
  • Raise blockers and risks early rather than letting them surface late in delivery
Core skills
  • Strong proficiency in JavaScript/TypeScript and React
  • Experience with Express and/or Next.js for building backend services or API routes
  • Comfortable with data modelling, authentication, and integrating with third-party APIs
  • Solid CSS skills, ideally including style frameworks such as Tailwind CSS
  • Comfortable writing automated tests and integrating with GraphQL and/or REST APIs
  • Happy working across multiple concurrent projects as part of a team
  • Curious, pragmatic, and cares about craft
We also value
  • Experience with AWS or other cloud infrastructure
  • Three.js or other WebGL/3D experience — a plus for building immersive, interactive experiences
  • Experience with state management libraries
  • Familiarity with web accessibility (a11y) best practices
  • Performance optimisation experience (Core Web Vitals, bundle size, etc.)
Is this the one for you?