Mid-Level Fullstack Developer (.NET / Next.JS)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Mid-Level Fullstack Developer (.NET / Next.JS) based in Brazil. Join a team developing and enhancing an education platform that helps professionals access, understand, and use data related to programs and accreditation. In this mid-level fullstack role, you will focus primarily on backend development with C# and .NET while contributing to modern frontend applications built with Next.js, React, and TypeScript. You’ll work within a monorepo environment, building reliable services, integrating APIs, and connecting reporting and analytics solutions. Collaborate directly with clients and cross-functional teams to translate business needs into effective technical solutions. You’ll also contribute to code quality through testing, peer reviews, and adherence to established architecture and development standards. This is an opportunity to grow your technical expertise in an Agile, collaborative environment supporting a platform with meaningful impact in education.

Build, maintain, and improve backend services using C#, ASP.NET Core with .NET 8, and Entity Framework Core. Develop and integrate RESTful APIs, following established project patterns and architectural standards. Contribute to frontend development using Next.js 14, React 18, and TypeScript. Integrate reporting and analytics services to support platform functionality and data-driven insights. Collaborate directly with clients and internal teams to understand requirements and deliver appropriate technical solutions. Learn, apply, and help maintain the project’s coding standards, architecture, and development practices. Write and maintain unit and integration tests to ensure code reliability, functionality, and maintainability. Participate in code reviews, provide constructive feedback, and support continuous improvements in code quality. Work within an Agile team, delivering complete, tested, and maintainable features on a regular basis. Requirements At least 3 years of professional experience in backend development with C# and .NET. Proven experience building, integrating, and maintaining RESTful APIs. Knowledge of Entity Framework Core or similar object-relational mapping tools. Experience working with relational databases such as Azure SQL or Microsoft SQL Server. Understanding of dependency injection, SOLID principles, and layered software architecture. Experience with React, TypeScript, and Next.js, with a willingness to contribute across the full stack. Familiarity with Git and software testing practices, including unit and integration testing. Ability to navigate, understand, and contribute to large and complex codebases. Strong communication and collaboration skills, with advanced English proficiency to work effectively with international clients and teams. Nice to have: Experience with Microsoft Azure services, particularly Azure SQL. Familiarity with NoSQL databases such as Azure Cosmos DB. Experience with business intelligence and reporting tools, including Power BI, Tableau, or similar platforms. Knowledge of application monitoring and logging tools such as Application Insights and Serilog. Experience with monorepo tools such as Turborepo or npm workspaces. Familiarity with Tailwind CSS and component libraries such as shadcn/ui or Radix UI. Experience with CI/CD pipelines and Azure DevOps. Understanding of authentication standards and technologies, including OAuth 2.0, JWT, and MSAL. Benefits Health and dental insurance. Meal and food allowances. Childcare assistance. Extended paternity leave. Access to gym, fitness, and wellness partnerships through Wellhub and TotalPass. Profit-sharing and results participation (PLR). Life insurance. Continuous learning opportunities through a corporate learning platform. Access to a discount club. An online platform dedicated to physical, mental, and overall well-being. Pregnancy and responsible parenting courses. Partnerships with online learning platforms. Access to a language-learning platform. Remote work opportunity in Brazil. Additional employee benefits and well-being initiatives.