[Job - 25364] Senior Full-Stack Developer (.NET / Node.js / Java / React), Brazil

ciandt
Brazil
On-site
Full-time
Posted about 1 month ago
Theta

Job Description

We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions.
With over 7,400 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. 
At CI&T, we are seeking a highly skilled and motivated Senior Full-Stack Developer to join our team in Brazil. You will contribute to an innovative project in a collaborative, transforming, and multicultural environment, driven by our commitment to Collaboration, Innovation, and Transformation.

Position Overview:
As a Senior Full-Stack Developer, you will lead the migration of a Node (Express) application into a .NET framework, creating like-for-like API endpoints while converting logic from stored procedures to code using the Dapper ORM. You will be part of a dynamic team that emphasizes high-quality deliverables, working closely with cross-functional teams to ensure client expectations are not just met, but exceeded.

Key Responsibilities:

  • Migrate legacy .NET and SQL-based systems to modern services and APIs (Java / Node.js).
  • Develop and maintain backend logic, ETL data services, and frontend components using React.
  • Collaborate with QA teams to integrate Postman test collections and Playwright automation scripts.
  • Support both manual and automated testing workflows, including complex “lot-to-subdivision” validation flows.
  • Participate in pipeline design and data synchronization across multiple environments.
  • Optimize and troubleshoot database queries and performance issues.
  • Leverage Copilot / AI-assisted development to accelerate delivery where appropriate.
Join us at CI&T, where your expertise will directly impact our innovative projects. We are driven by the power of AI and the desire to transform the digital landscape. If you are ready to collaborate in a forward-thinking environment, we want to hear from you!

#LI-MJ1

Our benefits include:

- Premium Healthcare
- Meal voucher
- Maternity and Parental leaves
- Mobile services subsidy
- Sick pay-Life insurance
- CI&T University   
- Colombian Holidays
- Paid Vacations
And many others. 


Collaboration is our superpower, diversity unites us, and excellence is our standard. 
We value diverse identities and life experiences, fostering a diverse, inclusive, and safe work environment. We encourage applications from diverse and underrepresented groups to our job positions.

Responsibilities

Key Responsibilities:

  • Migrate legacy .NET and SQL-based systems to modern services and APIs (Java / Node.js).
  • Develop and maintain backend logic, ETL data services, and frontend components using React.
  • Collaborate with QA teams to integrate Postman test collections and Playwright automation scripts.
  • Support both manual and automated testing workflows, including complex “lot-to-subdivision” validation flows.
  • Participate in pipeline design and data synchronization across multiple environments.
  • Optimize and troubleshoot database queries and performance issues.
  • Leverage Copilot / AI-assisted development to accelerate delivery where appropriate.

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