**Positively impacting billions of lives is our purpose — and it can be yours too!** Founded in 2010 in Brazil, Semantix is a leader in Big Data, Analytics, and Artificial Intelligence. We are a team of innovation enthusiasts with diverse backgrounds and varying levels of experience. What unites us is a shared motivation to transform our customers' experiences through data-driven culture. If this resonates with you, Semantix is your place. We're excited to have you join our team. After all, **the future is built together**. Requirements: We are looking for a Back-End Developer with solid experience in C# and REST APIs to work on building and maintaining scalable solutions based on microservices. This role operates under a hybrid model, focusing on data modeling, system integration, and modern architectural best practices. Strong programming logic and experience with relational databases are essential. **Responsibilities and duties:** * Design, develop, and maintain RESTful APIs using C#. * Work with microservices architecture applying best practices and design patterns. * Model data and develop integrated solutions with Oracle, SQL Server, and PostgreSQL databases. * Collaborate with development teams in version-controlled environments using GitHub. * Participate in continuous integration and delivery processes (CI/CD). * Contribute to code reviews, testing, and technical documentation. **Requirements and qualifications:** * Solid experience in C# programming. * Proficiency in implementing REST APIs. * Knowledge of microservices architecture. * Experience in data modeling. * Hands-on experience with relational databases: Oracle, SQL Server, and PostgreSQL. * Well-structured programming logic. * Familiarity with key industry design patterns. * Experience with GitHub and code versioning. * Practical knowledge of continuous integration and delivery (CI/CD). **Desirable qualifications:** * Experience in Google Cloud environments (GCP). Benefits Competitive market salary; Caju (flexible card) with a monthly recharge of R$ 1,060; Bradesco Health Insurance; Bradesco Dental Insurance; * ️ Preventive medicine with Dr. Alper; Life Insurance; * ️ Gympass (WellHub); ️ SESC; Childcare allowance for mothers and fathers; Bonus; Learning – dedicated area for developing hard and soft skills; Partnerships with educational institutions for technical training, MBA, postgraduate studies, certifications, English, and Spanish; Career Development Plan; Discounts on products from partner portals. We emphasize that all our positions are open to individuals of all profiles and backgrounds, valuing diversity and promoting an inclusive and welcoming environment for everyone.