Join CI&T as a Master .NET Engineer and help build complex back-end solutions with a multicultural team working across Brazil, Colombia, the UK, and the USA. You’ll serve as a technical expert, shaping solutions, supporting other developers, and helping the team apply effective technologies and practices. Communication is in English.

Responsibilities

• Design, build, and maintain back-end services with C#, ADO.NET, and SQL Server
• Develop and improve SOAP and REST APIs using sound practices and versioning standards
• Create unit and integration tests
• Investigate issues and identify root causes
• Integrate systems and services using software design patterns
• Review code and mentor junior developers
• Explore technologies and improve existing solutions
• Contribute to CI/CD workflows, including automated testing and deployment

Required Qualifications

• Strong production experience with .NET Framework and .NET Core
• Deep knowledge of ADO.NET and SQL Server
• Experience with database design and performance optimization
• Hands-on experience developing SOAP and REST APIs
• Ability to read and write XML data
• Strong understanding of software design patterns and best practices
• Advanced English proficiency
• Ability to collaborate effectively in multicultural, fast-paced teams

Preferred Qualifications

• Experience with cloud platforms, preferably Azure
• Familiarity with specification-driven development
• Exposure to Agile development methods
• Understanding of modern software development approaches

What We’re Looking For
You take ownership of your work, communicate clearly with technical and non-technical colleagues, and value shared team success. You’re adaptable when requirements change or situations are unclear, and you’re motivated to keep learning and improving.