[Job-30690] Mid-level .Net / React Developer, Brazil

Description

At CI\&T, we help major enterprises transform the potential of AI into real business impact through 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. **Important**: If you reside in the Metropolitan Region of Campinas, your presence at the city offices will be mandatory, per the current attendance policy. We are seeking a Senior Full Stack Developer to work on a strategic project for one of the world's largest food and meat processing companies. We are looking for someone with solid experience in Full Stack development using .NET and Next.js, capable of contributing to the evolution of scalable, secure, and highly available applications in a collaborative, innovation-oriented environment. This person will join a multidisciplinary team, participating from solution definition through implementation and application maintenance, consistently promoting software engineering best practices and delivery quality. ### **Responsibilities** Participate in understanding technical requirements, contributing to inceptions, refinements, and solution definition. Develop, evolve, and maintain Full Stack applications using .NET on the backend and Next.js on the frontend. Build and consume REST APIs, ensuring integration among platform services. Develop responsive, performant, and scalable interfaces using Next.js, React, and TypeScript. Implement automated tests to ensure application quality, reliability, and stability. Conduct code reviews and contribute to the evolution of development best practices. Analyze and resolve production incidents. Collaborate with multidisciplinary teams throughout the entire solution development lifecycle. ### **Requirements for this challenge** Solid experience with .NET (.NET Core or .NET 6\+) and C\#. Experience with Next.js, React, and TypeScript. Experience developing and consuming REST APIs. Knowledge of Entity Framework Core. Experience with relational databases such as SQL Server, MySQL, or PostgreSQL. Knowledge of automated testing using xUnit, NUnit, Jest, or similar tools. Experience with Git, GitHub, and CI/CD practices. Experience in cloud environments, preferably AWS or Azure. Knowledge of layered architecture, SOLID principles, Design Patterns, and development best practices. Experience with technical refinement, solution definition, and collaborative work in multidisciplinary teams. ### **Nice-to-have** Experience with microservices architecture. Knowledge of Docker and Kubernetes. Experience with messaging systems such as RabbitMQ, Kafka, or Amazon SQS. Knowledge of Terraform or Infrastructure as Code (IaC). Experience with observability using Grafana, Splunk, CloudWatch, Datadog, or similar tools. Knowledge of Redis. Experience with Clean Architecture and Domain-Driven Design (DDD). Experience with Azure DevOps. Knowledge of integration testing and End-to-End (E2E) testing. Experience developing highly available applications. **Our benefits:** * Health and dental insurance; * Meal and food allowance; * Childcare assistance; * Extended parental leave; * Partnerships with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass; * Profit Sharing Program (PLR); * Life insurance; * Continuous learning platform (CI\&T University); * Discount club; * Free online platform dedicated to physical, mental health, and 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 begins at first contact. If you are a person with disabilities, it is important to **submit your medical report during the selection process.** *Check which information must be included in the report* *by clicking here.* This way, we can ensure the support and accommodations you deserve. **If you do not yet have the qualifying medical report, don’t worry: we can support you in obtaining it.** We have a dedicated Health and Wellness team, inclusion specialists, and affinity groups that will accompany you at every stage. Count on us to walk this journey alongside you.