Senior Full Stack Developer

We are seeking a Senior Full Stack Developer to play a critical role in building and scaling production-ready internal platforms, proprietary technology, and AI-enabled systems at 1000heads. This is a hands-on role for someone who lives for building, enjoys ownership, and can move confidently from concept to deployment. You will lead development efforts, make architectural decisions, and help shape the technical foundation of our growing Creative Technology capability. You will work closely with your line manager (Group Technology Innovation Director), as well as Creative Technologists, to deliver robust, secure, and scalable solutions - particularly those involving AI, data, and automation . $10M COP - $13M COP RESPONSIBILITIES GENERAL Take ownership of end-to-end development across multiple internal projects. Translate product and business requirements into clean, scalable technical solutions. Work independently when required, while collaborating effectively within a wider team. Maintain high standards of code quality, performance, security, and documentation . Contribute to roadmap planning, technical decision-making, and estimation. FULL STACK DEVELOPMENT Design, build, and maintain full-stack applications using: React.js, Next.js Node.js SQL-based databases Develop and maintain APIs and backend services. Implement authentication, authorisation, and data security best practices. Work fluidly across front-end and back-end tasks depending on project needs. AI, DATA & CLOUD TECHNOLOGY Build and integrate AI-powered features using Google Cloud technologies including: Vertex AI BigQuery AI Studio Support model training, experimentation, and deployment where required. Work with structured and unstructured data to enable intelligent systems. Collaborate with Creative Technologists on AI workflows, agents, and automation pipelines. DEPLOYMENT & INFRASTRUCTURE Deploy and manage applications using platforms such as: ○ Vercel Supabase DreamHost Maintain CI/CD workflows and version control using Git and Bitbucket. Monitor performance, stability, and reliability of live systems. DESIGN & ENGINEERING EXCELLENCE Apply strong opinions on component design, scalability, and maintainability. Work with atomic design principles and reusable component systems. Collaborate closely with designers to ensure high-quality, consistent user experiences. Refactor and improve existing systems where needed. 8–10 years of professional development experience ○ Strong expertise in: React.js, Next.js Node.js SQL Git / Bitbucket workflows Proven experience delivering production-ready applications Experience with cloud infrastructure and deployment Additional valuable experience: Python, PHP, Django Supabase (auth, database, storage) AI/ML workflows and data platforms Serverless architectures and API-first design Experience mentoring or guiding junior developers ABOUT 1000HEADS 1000heads combines expertise in data & analytics, strategy, technology and creativity to help the world’s best businesses build Social Age brands. 1000heads provides a fully integrated, end-to-end Social Transformation™ proposition to blue-chip clients encompassing data & analytics, strategy and implementation. 1000heads has a global footprint, employing over 200 people across 12 offices in London, New York, Los Angeles, Miami, Chicago, Bogota, Sydney, Melbourne, Kuala Lumpur, Japan, Paris and Berlin. 1000heads’ clients include Alphabet, Nature Made, The North Face, San Pellegrino, Amazon, Cisco, and Diageo. 1000heads is an Equal Opportunities Employer, we are passionately committed to working together to promote an inclusive environment which celebrates and promotes diversity. We are committed to our belief that diversity in our team generates better and bolder ideas, creativity, understanding and respect. We welcome applicants irrespective of age, sex, race, ethnicity, disability and other factors that have no bearing on an individual’s ability to perform their job. For more information on 1000heads, visit 1000heads.com .