--- title: "[Job - 31381] Senior .NET Developer, Brazil" company: "CI&T" company_url: "https://www.remjobs.works/companies/ci-t" url: "https://www.remjobs.works/job/ci-t-job-31381-senior-net-developer-brazil-cc63eeff-c263-4327-9275-31f2484fa933" apply_url: "https://jobs.lever.co/ciandt/07a392af-17ef-41af-a6cb-426942bb23ae" workplace: remote location: "Brazil" remote_scope: "Brazil" employment_type: other seniority: senior role: software-engineering region: latin-america skills: ["azure", "csharp", "sql"] date_posted: 2026-09-08T13:58:30.153Z first_seen_by_remjobs: 2026-09-15T15:52:37.851Z --- # [Job - 31381] Senior .NET Developer, Brazil **CI&T** ยท Brazil Apply: https://jobs.lever.co/ciandt/07a392af-17ef-41af-a6cb-426942bb23ae ## About the role 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 looking for a **Senior .NET Engineer **to join our team and drive the development and integration of complex back-end software solutions. You will work closely with a multicultural team distributed across Brazil, Colombia, the UK, and the USA, collaborating daily in English and contributing to robust, scalable services and integrations. **Must-Have Skills:** - .NET Experience: strong experience with .NET Framework and .NET Core in production systems. - Backend Development: hands-on experience building back-end services with C#, ADO.NET, and SQL Server. - APIs & Integration: solid experience implementing and evolving SOAP and RESTful services, including versioning and best practices. - Data & Persistence: strong understanding of ADO.NET, SQL Server, database design and performance tuning. - XML: proficiency in XML serialization/deserialization. - Software Design: solid grasp of software design patterns and engineering best practices. - Testing & Reliability: experience with unit and integration testing, troubleshooting and root-cause analysis for service reliability. - Communication: effective communication skills in multicultural, fast-paced environments. - Language: advanced English proficiency (all communication in English). **Key Responsibilities** - Design, build and maintain back-end services using C#, ADO.NET and SQL Server. - Implement and evolve SOAP and REST APIs, ensuring proper versioning, security and best-practice standards. - Ensure service reliability through unit and integration tests, troubleshooting, monitoring and root-cause analysis. - Collaborate on integration between multiple systems and services, applying appropriate software design patterns. - Conduct code reviews, provide technical feedback and mentor junior engineers. - Stay current with emerging technologies and industry trends, applying them to improve existing solutions. - Contribute to CI/CD workflows and best practices to increase development efficiency and deployment quality. **Soft Skills** - Ownership & Continuous Improvement: proactive in taking responsibility for tasks and driving improvements. - Communication: able to clearly explain complex technical topics to both technical and non-technical audiences. - Collaboration: team player who values shared success and cross-functional collaboration. - Adaptability: comfortable navigating ambiguity and shifting requirements in a dynamic environment. **Nice-to-Have Skills** - Cloud: experience with cloud platforms, preferably Microsoft Azure. - Modern Practices: familiarity with specification-driven development and agentic approaches to software development. - Agile: exposure to Agile methodologies (Scrum, Kanban, etc.). The successful candidate will deliver reliable, performant back-end services and integrations, help elevate engineering standards through reviews and mentorship, and collaborate smoothly across time zones and cultures using English as the primary language. If you are a seasoned back-end developer ready for complex challenges in a dynamic, multicultural environment, we invite you to apply and become part of our diverse team! #LI-THAI23 **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](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](https://docs.google.com/presentation/d/12BqYLIGeEyp9t0ZdF2b4bvnjFLza4E8fmbcowWeBlfk/edit?slide=id.g3a9cf52bf2b_0_0#slide=id.g3a9cf52bf2b_0_0)*[.](https://docs.google.com/presentation/d/12BqYLIGeEyp9t0ZdF2b4bvnjFLza4E8fmbcowWeBlfk/edit?slide=id.g3a9cf52bf2b_0_0#slide=id.g3a9cf52bf2b_0_0)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. --- Source: CI&T's own career page, read by RemJobs. Canonical HTML version: https://www.remjobs.works/job/ci-t-job-31381-senior-net-developer-brazil-cc63eeff-c263-4327-9275-31f2484fa933