Job Summary: We are seeking a Fullstack Java Digital professional with a focus on Backend & Performance to join a team that values innovation and continuous improvement, solving problems in depth. Key Highlights: 1. Strengthen teams and solve problems in depth. 2. REST API development and performance troubleshooting. 3. Evolve toward SRE practices with an analytical focus. Join Stefanini! At Stefanini, we are more than 30\.000 geniuses, connected from 41 countries, doing what they love and co\-creating a better future. **Responsibilities and Duties** **We are looking for a Fullstack Java Digital (Backend \& Performance focus)** At Stefanini, we are strengthening our teams and seeking engineering profiles who want to make a difference—not only by developing but also by understanding and solving problems in depth. **What do we expect from you?** A profile capable of going beyond the code—identifying root causes and delivering real solutions in areas such as performance, optimization, and system stability. **Requirements and Qualifications** **Key Technologies and Experience:** * Java / Spring Boot * REST API development * Performance troubleshooting (GC, memory leaks, connection pooling, etc.) * Quality best practices: testing, profiling * CI/CD (Git, pipelines) * Container and OpenShift-like environment knowledge (logs, health checks, resource management) **Differentiating Value** We seek professionals with an analytical mindset and a continuous improvement orientation—capable of contributing both to development and to the evolution toward SRE (Site Reliability Engineering) practices. Ideally, if you are interested in evolving into a development-enabled SRE role, this challenge is for you. **Additional Information** Stefanini Benefits Are you looking for a place where your ideas shine? With over 38 years of experience and a global presence, at Stefanini we transform tomorrow—together. Here, every action counts and every idea can make a difference. Join a team that values innovation, respect, and commitment. If you are a disruptive individual, committed to continuous learning, and innovation is in your DNA, then we are exactly what you’re looking for. Come and let’s build a better future—together!