[Job - 32575] .NET Developer Senior, 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 are hiring a .NET Developer to join an established engineering team working on a healthcare insurance technology project. The project helps insurance companies manage customer data and processes like underwriting, enrollment, eligibility, and policies.
You will work with senior engineers and technical leaders on full-stack development (frontend and backend), APIs, and system integrations. You should have strong .NET skills, work well with others, and be comfortable using AI tools to improve your productivity and code quality.
What You Will Do
Develop and maintain application features using .NET and C#
Build frontend (UI), backend, and API code based on project needs
Create and maintain integrations with enterprise systems and external platforms
Work with senior engineers on technical decisions, code reviews, and implementation
Set up and maintain CI/CD pipelines (automated testing and deployment)
Use AI-assisted development tools to speed up work, troubleshooting, and documentation
Write clean, well-organized, and testable code following established patterns
Participate in Agile meetings and collaborative problem-solving sessions
Troubleshoot application issues and help ensure integrations work reliably
What You Need to Know
Professional experience developing applications with C# and .NET
Experience building and consuming REST APIs
Understanding of full-stack application development (frontend and backend)
Understanding of enterprise integration patterns (how different systems work together)
Experience with relational databases and SQL
Experience with Git and collaborative software development
Familiarity with automated testing and CI/CD practices
Ability to work independently on assigned tasks while collaborating with senior engineers
Practical experience with AI-assisted development tools, or willingness to learn them
Strong communication, problem-solving, and teamwork skills
Advanced English skills for both spoken and written communication.
Preferred Qualifications
Experience integrating enterprise applications (CRM, middleware, policy administration platforms)
Exposure to Salesforce, MuleSoft, or IBM enterprise technologies
Experience with complex business workflows or data-intensive applications
Experience working in regulated industries (healthcare, finance, insurance)
Familiarity with cloud environments and modern deployment practices
Experience working in teams that use AI tools in software development
What Success Looks Like
Delivering reliable, well-organized code that meets engineering standards
Contributing effectively to UI, API, and integration work
Collaborating well with senior engineers and other team members
Using AI tools thoughtfully to work faster without compromising quality
Supporting consistent, automated, and repeatable software delivery practices
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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.