**MIDDLEWARE** Analyze, diagnose, and resolve complex technical issues in integration environments. Identify root causes and propose solutions and best practices to ensure stability and operational continuity. **Responsibilities and attributions** * Perform specialized troubleshooting for incidents related to integration platforms. * Identify root causes and document findings clearly and in a structured manner. * Propose effective solutions and continuous improvements based on best practices. * Support technical reviews and problem resolution in development and production environments. * Architecture reviews and implementation of corrective changes. * Collaborate with development, operations, and architecture teams for comprehensive incident resolution. **Requirements and qualifications** * Minimum 3 years of experience * In-depth knowledge of middleware platforms such as JBoss, WebLogic, Apache Tomcat, jboss. * Operating Systems: Unix/Linux, Windows, and RHEL. * Knowledge of languages such as Bash, and scripting languages used for task automation. * Familiarity with relational databases (Oracle, MySQL, SQL Server) and non-relational databases (MongoDB, Cassandra). * Understanding of protocols such as HTTP, HTTPS, SOAP, REST, JMS or others Are you looking for a place where your ideas can 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 person, committed to continuous learning, and innovation is in your DNA, then we are what you're looking for. Come and let's build a better future together!