**We are looking for someone who dares to take the lead with us.** **Responsibilities and duties:** We are seeking a Senior Full Stack Developer to work on the development and maintenance of robust applications, using .NET Core on the back-end and React on the front-end. The candidate will be responsible for delivering scalable, secure, and high-performance solutions while collaborating with cross-functional teams. Develop and maintain web applications using .NET Core and React. Ensure best practices in architecture, testing, and code quality. Participate in technical discussions and contribute to architectural decisions. Collaborate with product, QA, and DevOps teams to enable continuous delivery. **Requirements and qualifications:** * Minimum 10 years of software development experience. * Solid experience with .NET Core (C#) and REST API development. * Advanced knowledge of React, including hooks, Context API, and best practices. * Experience with relational databases (SQL Server) and NoSQL databases. * Familiarity with CI/CD practices, Git, and agile methodologies. * Ability to serve as a technical reference for the team. * Experience with Cloud platforms (Azure or AWS). * Knowledge of automated testing (unit and integration tests). * Technical English for reading. **Additional information:** * For your health, we offer **medical and dental assistance** with no co-payment for exams and consultations. * Want more well-being? We offer **Gympass** and **Zenklub** (with two free sessions per month) to support your physical and mental health. * Love to travel? Here, we have **Férias & Co**, a benefit that helps make your dream trip a reality. * Growing family? We offer **MomCare**, a flexible monetary incentive after maternity leave for new Datunian mothers. * Want to invest in your professional development? We partner with several renowned educational institutions to offer you discounts of up to 70% on **undergraduate**, **graduate**, **MBA**, **language**, and many other courses! **To learn about all our benefits, visit the homepage of our careers page.**