Brazil onlyWe’re looking for a Senior .NET Developer to maintain and evolve a set of web .NET applications, with a strong focus on modernizing authentication/authorization flows and migrating to newer .NET Core versions. The frontend is built with React.
Responsibilities:
Maintain and improve existing ASP.NET / .NET Core web apps with a React frontend.
Redesign and implement modern authN/authZ (e.g. OAuth2/OIDC, JWT, identity providers).
Plan and execute .NET Core upgrades.
Work with AWS, MySQL, PostgreSQL, and multiple external integrations.
Use Bitbucket, CI/CD, and Playwright tests as part of the delivery workflow.
Collaborate with stakeholders to discuss and prioritize tasks and clarify requirements (in English).
Requirements:
5+ years of experience with .NET (C#) and web development.
Proven experience with auth flows and .NET version migrations.
Experience with React in production environments.
Experience with AWS, relational databases, and integrations with third-party APIs.
Comfortable with Bitbucket/Git and automated testing (Playwright is a plus).
Fluent English and strong communication/relationship skills.
Our benefits:
- Health and dental insurance
- Meal and food allowance
- Childcare assistance
- Extended paternity leave
- Partnership with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass;
- Profit Sharing and Results Participation (PLR);
- Life insurance
- Continuous learning platform (CI&T University);
- Discount club
- Free online platform dedicated to physical, mental, and overall well-being
- Pregnancy and responsible parenting course
- Partnerships with online learning platforms
- Language learning platform
Aruba only