Senior Full Stack Java Developer — Critical Production Support

Description

* Client: Avantti Consultoria TI * Contract Type: CLT * Work Format: 100% Remote Support for critical applications, focusing on analysis and resolution of high-severity incidents, SLA compliance, and corporate service stability. Responsible for advanced troubleshooting, emergency fixes, continuous improvements, and technical support in distributed and legacy environments. Requirements: **Backend** * Java 8+ * Spring ecosystem: Boot, MVC, Data, Security * Design patterns and best practices * Monolithic and microservices architecture * REST APIs and SOA * Messaging and enterprise integrations * IBM WebSphere, Oracle Service Bus * Oracle Database 12c, complex SQL queries * Batch processing, IBM DataStage, CA Workload Automation * Troubleshooting and log analysis on Linux/Unix * Cloud, Kubernetes, containers, and orchestration experience * Observability: Elastic Stack, Kibana, Grafana, APMs **Frontend** * Angular, Node.js * NGINX, Apache HTTP Server * HTML5, CSS3, JavaScript/TypeScript * Consumption of REST APIs * Frontend troubleshooting in production * DevOps / Operations * CI/CD, Git, deployment pipelines * Incident and problem management * Monitoring, observability, and performance analysis * ITIL experience (preferred) * SLA- and KPI-driven work approach **Preferred Qualifications** * Event-driven architecture * Operational automation tools * OpenShift, Docker * Application security * Disaster Recovery experience * Certifications in Java, Cloud, or Kubernetes **Key Responsibilities** * Support for critical production applications * Analysis and resolution of P1/P2 incidents * Advanced troubleshooting and root cause identification * Emergency fixes and production deployments * Application and infrastructure monitoring * Participation in war rooms and crisis management * Collaboration with infrastructure, DevOps, and business teams * Contribution to performance and stability improvements * Support for technological modernization and architectural evolution * Documentation of incidents and procedures * Technical mentoring for less experienced professionals