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[Job -26953] Senior Full Stack Developer (React/.Net)

Ciandt

Brazil Remote permanent

Posted: March 2, 2026

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Job Description

We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions.
With over 8,000 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality.

We are looking for a highly motivated and experienced Senior FullStack Software Developer to join our development team. You will be responsible for designing, developing, and implementing scalable and robust Cloud-Native software solutions to meet the complex requirements of our projects.

Main responsabilities
• Design, develop, and deploy .NET-based microservices on Cloud providers, following best practices for scalability, performance, and security.
• Develop responsive and user-friendly frontend applications using React framework, ensuring a seamless and engaging user experience.
• Implement and maintain CI/CD pipelines for automated build, test, and deployment processes.
• Integrate third-party APIs and services to enhance the functionality of our applications.
• Mentor junior developers and provide technical guidance and support to ensure the successful delivery of projects.
• Stay up-to-date with emerging technologies and industry trends, and incorporate them into our development processes as needed.

Mandatory Requirements
• Advanced English skills, both written and verbal, to effectively communicate with cross-functional teams and stakeholders.
• Proven experience as a Senior Fullstack Developer, with expertise in .NET microservices and React frontend development.
• Strong proficiency in C# programming language and experience with ASP.NET Core or similar frameworks for building microservices.
• Knowledge of Cloud services (Azure or other) and experience with deploying and managing applications on cloud infrastructure.
• Solid understanding of microservices architecture, RESTful APIs, and asynchronous messaging patterns.
• Experience with containerization technologies such as Docker and container orchestration platforms like Kubernetes.
• Familiarity with DevOps practices, including CI/CD pipelines.

#LI-GP1


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
And many more!

More details about our benefits here: https://ciandt.com/br/pt-br/carreiras

At CI&T, inclusion starts at the first contact. If you are a person with a disability, it is important to present your assessment during the selection process. See which data needs to be included in the report by clicking here.This way, we can ensure the support and accommodations that you deserve. If you do not yet have the assessment, don't worry: we can support you in obtaining it.

We have a dedicated Health and Well-being team, inclusion specialists, and affinity groups who will be with you at every stage. Count on us to make this journey side by side.

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