Senior Full Stack Developer (.NET + React) _ On-site in Rio de Janeiro

Description

Job Summary: We are looking for a Full Stack Developer to join a team building the future through innovation, collaboration, and respect — in an environment that values initiative and continuous growth. Key Highlights: 1. Taking initiative on a journey that values ideas and fosters growth. 2. A culture recognized by GPTW, emphasizing collaboration and continuous learning. 3. A team that helps build the future in a People-First and inclusive environment. At Cadmus, we believe technology only makes sense when it truly transforms lives and businesses. For over 30 years, we have built solutions that combine innovation, closeness, and real impact — and this is just the beginning. Here, you are not just another person. You are the protagonist of a journey that values ideas, promotes growth, and opens space for the new. Our GPTW-recognized culture reflects what we live daily: collaboration, continuous learning, and respect for people. If you want to join a team that doesn’t just follow the future but actively helps build it, Cadmus is the place for you. Grow with us. We are seeking a Full Stack Developer (.NET \+ React) At Cadmus, our People-First value inspires us to create an environment where every person feels welcomed, respected, and valued. We believe in building an inclusive space where everyone feels comfortable contributing their unique perspectives. Requirements: ️ Frontend Solid experience with React for developing Single Page Applications (SPA). Knowledge of Web Workers for performance optimization and parallel processing. Strong UI/UX practices and integration with REST/GraphQL APIs. * ️ Backend Proficiency in .NET Core for building scalable, high-performance services. Implementation of SignalR for real-time communication. Integration with Redis for caching and messaging. Experience with PostgreSQL (schema modeling, query optimization, and basic administration). * ️ Cloud \& Infrastructure (AWS) Elastic Container Service (ECS) and Elastic Kubernetes Service (EKS) for container orchestration. Configuration and management of API Gateway for secure service exposure. Use of Secrets Manager for credential and sensitive data management. Development and maintenance of AWS Lambda Functions for serverless architectures. Observability \& Monitoring Experience with DataDog for application monitoring, metrics, and logs. Implementation of alerts and dashboards to ensure high availability and performance. Additional Qualifications Advanced knowledge of the AG-Grid component for displaying highly complex dynamic reports, supporting up to 15\.000 rows and 300 columns. Experience with DevOps practices and CI/CD. Experience in agile environments (Scrum/Kanban). Ability to work in multidisciplinary teams and on highly complex projects.