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. SENIOR SOFTWARE ENGINEER (PYTHON | REACT | AWS) | HYBRID – CUBAO ABOUT CI&T At CI&T, we help global enterprises transform the potential of AI into real business impact through AI-native execution, application modernization, cloud, data, and digital engineering. With over 30 years of experience and 8,000+ CI&Ters across 25+ countries, we combine human expertise with AI to build innovative, scalable solutions for some of the world's leading brands. ABOUT THE ROLE We're looking for a Senior Software Engineer with strong expertise in Python, React, AWS, and modern cloud technologies to join our growing engineering team. You'll play a key role in designing and building scalable applications, mentoring engineers, driving technical excellence, and collaborating with global teams to deliver high-quality software solutions. WHAT YOU'LL DO * Design, develop, and enhance scalable software solutions and system improvements. * Build modern web applications using Python and React/Next.js. * Develop and maintain RESTful APIs and microservices. * Optimize application performance, scalability, and system reliability. * Participate in architecture discussions and technical design decisions. * Build and support cloud-native applications on AWS. * Implement CI/CD pipelines and deployment best practices. * Mentor engineers through code reviews and technical guidance. * Collaborate with cross-functional and global teams in an Agile environment. WHAT WE'RE LOOKING FOR REQUIRED SKILLS * 5+ years of Software Engineering experience * Strong experience with Python (Required) * Experience with React and/or Next.js * Experience designing and developing REST APIs and Microservices * Strong understanding of Software Architecture and System Design * Experience with PostgreSQL and Redis/Valkey * Hands-on experience with AWS, including: * API Gateway * Lambda * EC2 * ECS * S3 * Amazon SQS * Amazon SES * Experience with CircleCI and Serverless Framework * Familiarity with monitoring, observability, and production support * Experience working in Agile teams NICE TO HAVE * Distributed systems and cloud-native architecture * Performance optimization and scalability * Mentoring and technical leadership experience * Automated testing and CI/CD best practices * Strong troubleshooting and root cause analysis skills   Collaboration is our superpower, diversity unites us, and excellence is our standard.  We value diverse identities and life experiences, fostering a diverse, inclusive, and safe work environment. We encourage applications from diverse and underrepresented groups to our job positions.