Freelance Full Stack Developer

Join Our Team as a Freelance Full Stack Developer

Our Amsterdam office (code d’azur) is located at the Oosterdokseiland—an inspiring workspace hub with modern architecture and waterfront views. The environment offers a creative, forward-thinking vibe, perfect for both work and play.

We are looking for a skilled and passionate freelance Full Stack Developer to join our team. This role is for a versatile developer who can take ownership of features from concept to deployment. You will be building robust, scalable applications by connecting a polished frontend to powerful backend services, with a focus on creating seamless, end-to-end products that may include AI-powered features.

What we need

• Eye for Design: A strong sense of aesthetics and usability, with the ability to translate design concepts into beautiful, functional user interfaces.
• Excellent Communicator & Team Player: Articulate, collaborative, and able to work effectively within a team environment, sharing ideas and feedback constructively.
• Adaptable & Innovative Mindset: A natural curiosity and eagerness to explore new technologies and venture into uncharted territory. You shouldn't shy away from learning something new to solve a problem.
• AI-Enhanced Workflow: Fully embraces AI technologies to optimize their workflow, from in-IDE assistants (like GitHub Copilot, Cursor) to external tools and command-line agents.
• Knowledge of Design Systems: Experience with or a solid understanding of design systems is a significant plus. Familiarity with tools like Figma and Tokens Studio is highly valued.

What you’ll do

• Design, develop, and maintain full-stack applications using our core stack.
• Architect and build AI-powered features and applications, integrating with large language models (LLMs) and other AI services.
• Build responsive and performant user interfaces with React and Next.js, utilizing our design system and component libraries built with Storybook and Vanilla Extract.
• Develop and manage server-side logic and APIs using Node.js.
• In cooperation with our TechOps department, deploy and maintain cloud infrastructure on AWS, ensuring scalability, reliability, and security.
• Collaborate with frontend and backend developers to integrate user-facing elements with server-side logic.

Key technical strengths we’re looking for

• Frontend: Strong proficiency in React, Next.js, Vanilla Extract, Vite, and Storybook.
• Backend: Solid experience with Node.js.
• Headless CMS: Experience architecting and integrating solutions with headless CMS platforms like Sanity (our default), Contentful, DatoCMS, or Strapi.
• Cloud: Hands-on experience with AWS services (e.g., EC2, S3, Lambda, RDS).
• AI Integration: Familiarity with building applications that leverage AI/ML APIs (e.g., OpenAI, Hugging Face, Anthropic) is highly desirable.
• Design Integration: Experience working with Figma and Tokens Studio to implement designs accurately.
• Databases: Knowledge of both SQL and NoSQL databases.

We’re looking for someone who can start on the 1st of October and work with us full-time (40 hours per week) until the end of the year, joining our awesome team on-site in Amsterdam.

About us

We’ve been exploring technology's potential to deliver breakthrough innovations since 1998. We believe that deep technical know-how combined with cutting-edge creativity drives change to future-proof businesses. Change relies on radical synergy. Technology and creativity should work in perfect unison. Tech enables creativity. Creativity unlocks the potential of tech.

Our track record of disruptive ventures and innovative ideas shows that we have transformative thinking deeply ingrained in our DNA. We punch above our weight when it comes to consulting, creating and maintaining digital ecosystems for global clients like VodafoneZiggo, Polestar, citizenM, and Philips. With a team of 450+ specialists across brand, experience, technology, and data & AI, we have the power to drive fundamental transformation at scale.