Senior Full Stack Developer

Barcelona

3–6 Month Engagement

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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. xugodme 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 (España)
🏢 SustainRecruit Talent
📍 España