B2 B | Fullstack (Python, Next & React) Developer | Barcelona, Spain About the Role We are looking for a Senior Full Stack Developer to join an innovative team working on AI-driven solutions. You will contribute to the development of scalable and high-performing web applications, working across both frontend and backend technologies. You’ll be part of a collaborative Scrum Agile environment, working closely with developers, designers and product managers to deliver high-quality solutions. What You’ll Do Develop and maintain web applications using Next.Js and React. Build responsive and modern user interfaces using Tailwind CSS. Collaborate with backend engineers to design, integrate and test APIs using Python and Fast API. Develop and maintain backend components in Python. Write and maintain automated tests using pytest, Gherkin, Cucumber and Playwright. Work with AWS cloud services, ensuring applications are scalable, reliable and secure. Troubleshoot, debug and optimize applications for performance and scalability. Work with charting libraries such as ECharts, Chart.Js or Recharts. Participate actively in Scrum ceremonies, including daily stand-ups, sprint planning and retrospectives. Collaborate with designers, developers and product managers to deliver new features. Contribute to code quality, security and development best practices.



Mentor junior developers and provide technical guidance when needed. What We’re Looking For 4-5+ years of professional experience in Full Stack Development. Strong experience with Next.Js and React. Experience building responsive UIs with Tailwind CSS. Experience with Python and backend development, ideally with Fast API. Hands-on experience with AWS services such as EC2, S3, Lambda and RDS. Experience with automated testing and pytest. Familiarity with Git and modern software development practices. Experience working in a Scrum/Agile environment. Experience with charting libraries such as ECharts, Chart.Js or Recharts. Strong problem-solving and analytical skills. Good communication and teamwork skills. Comfortable working in a fast-paced environment and dealing with ambiguity. Nice to Have Experience with CI/CD pipelines, particularly Git Hub Actions. Experience with Docker and containerized applications. Knowledge of serverless architectures. Experience with Sonar Cloud or Snyk. Familiarity with Turbo Repo / monorepos. Experience with Storybook for UI component development. Experience with Gherkin, Cucumber and Playwright. If you're looking for an opportunity to work with modern technologies and contribute to innovative AI-driven products within a integral aviation group, we'd love to hear from you. #J-18808-Ljbffr

📌 b | Fullstack (Python, Next & React) Developer | Barcelona, Spain
🏢 Optiwisers
📍 Barcelona