[Job-32674] Senior Software Developer (.NET / Azure), 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’re looking for a Senior Software Developer to join a dedicated nearshore team building a placement management platform for a US education client. The platform runs on Azure with .NET Core APIs, a React frontend and a Dynamics 365 / Dataverse CRM core. You’ll design and build the secure backend services that connect them.

 

What you’ll do

• Build and maintain C# / .NET Core APIs as microservices hosted on Azure (App Service, Functions, API Management).
• Implement web authentication and authorization flows, including JWT-based token handling and SSO with SAML and OpenID Connect.
• Integrate APIs with Dynamics 365 / Dataverse and the React frontend.
• Work in Azure DevOps (repos, pipelines, boards) within an Agile team, overlapping with US Central Time.

 

What we’re looking for

• Proven experience with backend development in C# / .NET, with production experience on Azure.
• Hands-on experience implementing authentication: OAuth 2.0 / OIDC, JWT, and SSO / SAML.
• Experience designing RESTful microservices, including security, logging and error handling.
• Upper-intermediate or advanced English for daily communication with US stakeholders.

Nice to have

• Microsoft Entra ID or Entra External ID (formerly Azure AD B2C).
• Dataverse Web API or Dynamics 365 integration.
• Azure certifications such as AZ-204.