We are experts in **technological transformation**, combining human expertise with AI to build scalable tech solutions. With over 8,000 CI&Ters worldwide, we have partnered with more than 1,000 clients throughout our 30-year history. Artificial Intelligence is our reality. **Important**: If you reside in the Campinas Metropolitan Region, your physical presence at our city offices is mandatory, per our current attendance policy. **Responsibilities:*** Design, develop, and maintain complex applications using languages such as Node.js (TypeScript) on the backend and React (TypeScript) on the frontend; * Implement and support serverless components (AWS Lambda), microservices, and micro-frontends, ensuring solution cohesion and autonomy; * Ensure application quality and stability through a culture of automated testing; * Influence and support technical decisions, assist in managing technical debt, and perform refactoring that delivers business value; * Implement and optimize CI/CD pipelines for automation of builds, tests, and deployments in cloud environments; * Share knowledge about software engineering best practices and emerging technologies with both the team and the client. **Requirements:*** Proven experience with technologies such as TypeScript, Node.js, and React; * Advanced knowledge of microservice architectures and RESTful and/or GraphQL API design; * Expertise in caching techniques and system optimization; * Experience with test-driven development (TDD/BDD) and automated testing tools; * Practical experience with public clouds (AWS, Azure, or Google Cloud Platform); * Proficiency in modeling and developing web systems and microservices; * Expertise in relational databases (MySQL, PostgreSQL) and non-relational databases (MongoDB, Redis, etc.), as well as query optimization techniques; * Experience with technologies such as containers (Docker), message queues, and messaging systems; * Proficiency with CI/CD tools, version control (Git), and agile development practices; * Excellent communication skills, with the ability to clearly and concisely articulate complex ideas. #LI-RR2 #Midsenior **Our benefits:*** Health and dental insurance; * Meal and food allowance; * Childcare assistance; * Extended parental leave; * Partnerships with gyms and health & wellness professionals via Wellhub (Gympass, TotalPass); * Profit and Results Sharing Program (PLR); * Life insurance; * Continuous learning platform (CI&T University); * Discount club; * Free online platform dedicated to promoting physical, mental, and overall well-being; * Pregnancy and responsible parenting course; * Partnerships with online course 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 from the first contact. If you are a person with a disability, 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 allows us to ensure the support and accommodations you deserve. **If you do not yet have the official disability certification, 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 accompany you at every stage. Count on us to walk this journey alongside you.