CI&T is a global tech transformation company with 30 years of experience, serving major financial institutions in Brazil. We're seeking a Mid-level Kotlin/Java Backend Developer to join our team working on projects for one of Brazil's largest banks. The role involves full software development lifecycle responsibilities, from conception to production deployment and continuous improvement. You'll work with modern technologies including Java, Kotlin, and microservices architecture, applying best practices like TDD, DDD, and Clean Code. The position offers comprehensive benefits including health insurance, mental health support, and professional development opportunities through CI&T University. We value diversity and inclusion, creating an environment where innovation thrives through different perspectives and experiences. The role combines technical excellence with collaborative teamwork, making it an ideal opportunity for developers looking to impact the financial services sector while growing their careers in a supportive, global organization.