We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions. With over 7,400 CI&Ters; around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality. We are looking for an experienced Back-End Engineer to lead the development of scalable, distributed systems on AWS. This role involves hands-on technical contribution and close collaboration with cross-functional teams. The ideal candidate brings expertise in cloud-native development, 12-Factor App principles, and event-driven architecture, along with strong communication and leadership skills. Key Responsibilities - Technical Leadership & Cloud-Native Architecture - Design and implement 12-Factor cloud-native applications, ensuring portability, scalability, and continuous deployment. - Build end-to-end distributed systems using C#/.NET and AWS-native services. (Experience with the latest versions of Angular is a plus.) - Architect and orchestrate event-driven systems using AWS EventBridge, Step Functions, Lambda, SNS, and SQS. - Promote stateless processes, effective configuration management, and backing services best practices for cloud deployment. - Implement microservices architectures with clear service boundaries and asynchronous communication patterns. - Collaborate with Product Managers, UX Designers, and other stakeholders to ensure the timely delivery of high-quality software. Required Qualifications - 3+ years of professional software development experience. - Proven application of 12-Factor App methodology in production. - Deep AWS knowledge, including EventBridge, Step Functions, Lambda, ECS/EKS, DynamoDB, RDS Aurora, and the Well-Architected Framework. - Advanced skills in C#/.NET, TypeScript, and RESTful API development. - Proficiency in Angular (v10+), TypeScript, HTML5, and CSS3. - Experience with DevSecOps practices, including container security. - Strong understanding of both SQL and NoSQL databases. - Solid grasp of the SDLC, Git, CI/CD, and modern DevOps practices. - Experience designing and deploying microservices and event-driven architectures in production. - Collaboration & Communication Skills (Must-Have) - Ability to work effectively with colleagues from diverse disciplines and backgrounds. - Strong verbal and written communication skills, with the ability to explain complex technical concepts to different audiences. Our benefits include: - Premium Healthcare - Meal voucher - Maternity and Parental leaves - Mobile services subsidy - Sick pay-Life insurance - CI&T; University - Colombian Holidays - Paid Vacations And many others. 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.