Junior JAVA Developer

Description

Job Summary: We are seeking a backend developer with Java 17+ and Spring Boot 3+ to design, develop, and implement software solutions based on hexagonal architecture. Key Highlights: 1. Co-create a better future with a global team of 30,000 geniuses. 2. Develop innovative software solutions using Java 17+ and Spring Boot 3+. 3. Collaborate in an agile environment leveraging AI to optimize development. Join Stefanini! At Stefanini, we are over 30\.000 geniuses connected from 41 countries, doing what we love and co\-creating a better future. **Responsibilities and Duties** Mandatory Requirements (Hard): * Experience with Java 8 or higher * Experience with 1 non-relational database (please specify the name) * Experience with microservices * Unit Tests / Integration Tests Mandatory Requirements (Soft): * Ability to ask for help at the right time (e.g., if blocked on a ticket, seek assistance) * Good interpersonal skills and willingness; positive attitude * Agile methodologies Desirable Requirements (Hard): * Experience with Docker * Familiarity with logging platforms (e.g., Kibana, Grafana, New Relic) * Background in financial or banking domains Desirable Requirements (Soft): * Experience in large projects / large teams **Requirements and Qualifications** \u00f1: Pachecho, Buenos Aires .\u2063 : 1 day per week onsite, 4 days remote (until May; starting in May, 2 days per week onsite).\u2063 \u2063 \u00e1 \u00ed, , \u00f1\u2063 \u2063 :\u2063 * Design, develop, and implement software solutions following hexagonal architecture (Ports \u0026 Adapters).\u2063 * Develop backend applications using Java 17\+ and Spring Boot 3\+.\u2063 * Implement secure microservices with Spring Security and optimize with Spring Native (\n* Design, implement, and consume REST APIs following best practices.\u2063 * Manage MySQL (SQL) and MongoDB (NoSQL) databases.\u2063 * Configure observability: log flows to OpenSearch and dashboards in Grafana.\u2063 * Deploy and scale applications on GCP.\u2063 * Collaborate on rearchitecting applications toward the new architecture.\u2063 * Write clean and maintainable code, prioritizing unit and integration tests.\u2063 * Participate in CI/CD processes and agile environments.\u2063 * Leverage AI tools (Copilot, ChatGPT) to optimize development.\u2063 \u2063 \u2063 \u00e1 ( ):\u2063 * More than 4 years of backend development experience.\u2063 * Java 17\+: Deep expertise (Virtual Threads, Pattern Matching, Records).\u2063 * Spring Boot 3\+: Experience in microservices and security.\u2063 * Databases: Advanced MySQL and MongoDB.\u2063 * Observability: OpenSearch and Grafana.\u2063 * Cloud: AWS (EC2, S3, Lambda, RDS, EKS/ECS).\u2063 * Knowledge of Angular and/or React for frontend support.\u2063 * Experience in agile environments and engineering best practices.\u2063 \u2063 , \u00e1 ! Looking for a place where your ideas shine? With over 38 years of experience and a global presence, Stefanini transforms tomorrow — together. Here, every action matters, 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’re exactly what you’re looking for. Come and let’s build a better future — together!