;Join us as a **Prolinian!** Looking for an experience at a technology company that’s continuously growing? Join **Prolins Tecnologia!** We have an opening for a **.NET Developer – Mid-Level.** **Hiring:** Immediate, via PJ – R$ 8.000,00 **Location:** On-site work in Fortaleza/CE **Prolins** has been operating in the technology market for over 20 years, delivering agile and efficient solutions to our clients. Here, you’ll work alongside a team of experts in: software, website, and application development; as well as project consulting. We also provide outsourcing services—the solution to increase your company’s efficiency and reduce costs, leveraging the expertise of our specialized team. **Responsibilities and duties:** Design, develop, and maintain back-end systems using C# and SQL; Develop and integrate APIs; Collaborate with front-end developers to integrate server-side logic; Ensure back-end system security and integrity; Troubleshoot and resolve performance issues; Participate in code reviews; Identify and resolve issues efficiently; Attend team meetings to discuss project progress and innovative ideas; Stay up-to-date with industry trends and best practices. **Requirements:** Experience in .NET C# development; Knowledge of ASP.NET MVC and/or ASP.NET Core; Familiarity with the Blazor framework for front-end development; Strong experience in API development and integration; Familiarity with SQL Server or other relational database technologies; Problem-solving skills and critical thinking; Excellent communication and teamwork abilities; Ability to learn quickly and adapt to new technologies and tools; Degree in Computer Science, Software Engineering, or related field (preferred). **Preferred:** Previous experience in the Financial Market sector. **Additional information:** **PJ contract R$ 8.000,00;** **100% on-site work in Fortaleza;** **15 days of paid leave after 12 months of employment;**