[Job - 31975] .NET Developer Senior, Brazil

At CI&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI-native execution, and tech-integrated business solutions. With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data & AI, Martech and Business strategy. We are 8,000 CI&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day. We are hiring a **Senior .NET Engineer** to join our team and help build complex back-end software solutions. You will work with a multicultural team spread across Brazil, Colombia, the UK, and the USA. **All communication will be in English.** As a Senior .NET Engineer, you will design solutions, help guide less experienced developers, and help the team adopt new technologies and best practices. **What You Will Do** - Design, build, and maintain back-end services using C#, , and SQL Server - Create and improve SOAP and REST APIs (following best practices and version standards) - Write unit tests and integration tests to make sure services work correctly - Find and fix problems in the code (root-cause analysis) - Help integrate different systems and services together (using software design patterns) - Review other developers’ code and provide guidance to junior team members - Learn about new technologies and find ways to improve our current solutions - Work on CI/CD workflows (automated testing and deployment) to improve how the team works **What You Need to Know** - Strong experience with .NET Framework and .NET Core in real production systems - Deep knowledge of and SQL Server - Experience with database design and making databases work faster - Hands-on experience building SOAP and REST APIs - Ability to work with XML (reading and writing XML data) - Strong understanding of software design patterns and best practices - Advanced English proficiency - Ability to work well in multicultural, fast-paced teams **Soft Skills** - Takes ownership of your work and always looks for ways to improve - Communicates clearly with both technical and non-technical people - Works well with others and values the team’s success - Can adapt when requirements change or situations are unclear **Nice to Have** - Experience with cloud platforms (preferably Azure) - Knowledge of specification-driven development (building code based on clear requirements) - Exposure to Agile development methods - Understanding of modern software development approaches #LI-THAI23