We are experts in **technological transformation**, combining human expertise with AI to create scalable tech solutions. With more than 8,000 CI&Ters worldwide, we have already partnered with over 1,000 clients throughout our 30-year history. Artificial Intelligence is our reality. **Important**: If you reside in the Campinas Metropolitan Region, your presence at the city offices will be mandatory, according to the current attendance policy. We are looking for a **Senior Developer** with strong expertise in ***Java, Kotlin Backend, AWS*** to work on a challenging project for one of Brazil’s largest digital banks. Your mission will be to participate in the entire software development lifecycle—from feature conception through production deployment, maintenance, and continuous service improvement. **Your Mission:** Participate in all stages of the software development lifecycle, including feature conception, testing, production deployment, maintenance, and continuous improvements. **Requirements:** * Experience with object-oriented programming languages, with proficiency in Java and Kotlin. * Microservices architecture. * Best practices in software development, such as TDD (Test-Driven Development), DDD (Domain-Driven Design), Clean Code, and Hexagonal Architecture. * Agile practices/frameworks, such as SCRUM or KANBAN. * SQL databases. * HTTP/HTTPS protocol. * GIT and Git Flow. * Strong communication skills and ability to collaborate effectively with the team. * Technical problem solving (bugs, incidents, analyses). * Adherence to client-defined policies and processes. * Writing unit, functional, and performance tests according to team guidelines. * Application instrumentation for performance metrics, operational logs, and telemetry. **You’ll Stand Out With:** * Experience with Spring Boot and/or Javalin. * Familiarity with Kafka, SQS, and SNS. * Knowledge of NoSQL databases. * Experience with Docker and Kubernetes. * Experience with data streaming solutions. * Experience with event-driven solutions. * Knowledge of platforms such as Apigee and Node.js (server-side management, API management). * Experience with AWS. \#LI-DJ1 \#LI-midsenior **Our benefits:** * Health and dental insurance; * Meal and food allowances; * 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 at 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 & Wellness team, inclusion specialists, and affinity groups ready to support you every step of the way. Count on us to walk this journey side by side.