B2B | Fullstack (Python, Next & React) Developer | Barcelona, SpainAbout the RoleWe are looking for aSenior Full Stack Developerto 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 collaborativeScrum Agile environment, working closely with developers, designers and product managers to deliver high-quality solutions.What You’ll DoDevelop and maintain web applications usingNext.Js and React .Build responsive and modern user interfaces usingTailwind CSS .Collaborate with backend engineers to design, integrate and test APIs usingPython and FastAPI .Develop and maintain backend components inPython .Write and maintain automated tests usingpytest, Gherkin, Cucumber and Playwright.Work withAWS cloud services, ensuring applications are scalable, reliable and secure.Troubleshoot, debug and optimize applications for performance and scalability.Work with charting libraries such asECharts, Chart.Js or Recharts .Participate actively inScrum 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 For4-5+ years of professional experiencein Full Stack Development.Strong experience withNext.Js and React .Experience building responsive UIs withTailwind CSS .Experience withPythonand backend development, ideally withFastAPI .Hands-on experience withAWSservices such as EC2, S3, Lambda and RDS.Experience with automated testing andpytest .Familiarity withGitand modern software development practices.Experience working in aScrum/Agile environment .Experience with charting libraries such asECharts, 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 HaveExperience withCI/CD pipelines, particularly GitHub Actions.Experience withDockerand containerized applications.Knowledge ofserverless architectures .Experience withSonarCloud or Snyk .Familiarity withTurboRepo / monorepos .Experience withStorybookfor 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 (Madrid)
🏢 Optiwisers
📍 Madrid