Senior Full-stack Developer

Wondersphere is an independent branding and digital studio based in London. We work with ambitious organisations to bring clarity to complex businesses, creating brand identities, experiences and digital platforms that support their growth.

We’re a small, senior team that works closely with our clients, from the initial thinking through to the finished work.

We’re now building our in-house development capability and looking for an experienced Senior Full-stack Developer to play a central role in that growth.

We’re looking for someone who can take technical ownership of sophisticated websites and digital platforms, working closely with our strategy and design teams to turn complex requirements into well-built, reliable digital experiences.

Our work increasingly involves organisations with multiple audiences, services, locations and content requirements. That calls for more than conventional website development. We need platforms that are thoughtfully structured, straightforward to manage and capable of evolving as the organisations behind them grow.

You’ll initially work alongside an experienced freelance Technical Architect who will help establish our technical architecture and development standards. You’ll contribute to those decisions and take day-to-day responsibility for development, implementation and ongoing maintenance.

Over time, you’ll help shape Wondersphere’s technical capability, from the technologies we use to the way we approach projects and build our development team.

This isn’t a role for someone who simply takes finished designs and turns them into pages. We’re looking for a developer who enjoys solving problems, contributes to technical decisions and takes responsibility for the quality of what they build.

• Build sophisticated, responsive websites and digital platforms from Figma designs.
• Develop reusable front-end components and maintainable design systems.
• Build and configure complex CMS platforms, including multisite architectures.
• Develop back-end functionality, data models and publishing workflows.
• Create and maintain API integrations with third-party platforms.
• Work with databases, deployment pipelines, hosting and infrastructure.

• Work with the Technical Architect to implement and develop the agreed architecture.
• Take day-to-day ownership of the codebase, development environment and technical documentation.
• Make sound technical decisions independently, knowing when to seek specialist advice.
• Maintain high standards of accessibility, security, performance and code quality.
• Identify technical risks and find practical solutions before they become problems.
• Help establish development standards, workflows and processes within Wondersphere.

• Collaborate closely with our strategy, UX and design teams from the beginning of each project.
• Contribute technical thinking during discovery, planning and design.
• Translate complex requirements into practical, maintainable solutions.
• Communicate technical considerations clearly to colleagues and clients.
• Support testing, deployment, training and ongoing maintenance.
• Help guide additional developers and technical specialists as our capability grows.

You’ll be an experienced, hands-on Full-stack Developer with at least 6–8 years of relevant professional experience and a track record of delivering substantial digital projects.

• Strong experience with modern JavaScript or Type Script and a contemporary front-end framework such as React or Next.js.
• Solid back-end development experience, including APIs, databases and server-side applications.
• Demonstrable experience building and maintaining sophisticated…