Senior Full Stack Developer Barcelona 3–6 Month Engagement I’m currently working with a high-growth AI-focused technology team looking for a Senior Full Stack Developer to join them on an initial 3–6 month engagement. This is a great opportunity for someone who wants to get involved in a technically interesting environment, working across modern frontend, backend, and cloud technologies. What you’ll be doing: * Building and maintaining web applications using Next.js and React * Developing responsive and intuitive interfaces with Tailwind CSS * Working closely with backend engineers to design, integrate and test FastAPI services * Developing backend components in Python, with a strong focus on quality and testing * Deploying and managing applications across AWS * Improving application performance, scalability and security * Troubleshooting and optimising existing applications * Working within a Scrum/Agile environment,



contributing to sprint planning, stand-ups and retrospectives * Collaborating with designers, developers and product managers to deliver new features * Supporting and mentoring more junior developers and providing technical guidance Tech stack: * Next.js & React * Tailwind CSS * Python & FastAPI * AWS – EC2, S3, Lambda, RDS * Playwright, Cucumber & pytest * Git & Agile/Scrum Looking for: * 4–5+ years of experience with React / Next.js and full-stack development * Strong Tailwind CSS experience * Solid Python backend experience * Hands-on AWS experience * Strong testing and engineering practices * Comfortable working in an Agile environment Nice to have: Docker, GitHub Actions, serverless architectures, SonarCloud/Snyk, TurboRepo and Storybook.

📌 Full Stack Engineer (Barcelona)
🏢 SustainRecruit Talent
📍 Barcelona