Job Summary: We are looking for a Junior Java Developer with backend experience to collaborate on microservice architecture design and develop RESTful APIs, participate in code reviews, and troubleshoot issues. Key Responsibilities: 1. Collaborate on microservice architecture design 2. Develop RESTful APIs and follow development best practices 3. Identify and resolve bugs and performance issues ids Comercial is a 100% Mexican IT company with 40 years of experience and presence in Mexico, Latin America, and the USA. Over 1,500 consultants work across numerous projects in financial, commercial, manufacturing, telecommunications, services, government, and other sectors. We are accredited at CMMI Level 5 (Capability Maturity Model Integration), the quality model established by the Software Engineering Institute (SEI). We are ISO certified under ISO/IEC 27001:2013. We hold the Socially Responsible Company (ESR) distinction. WE ARE LOOKING FOR YOU!! ### **JUNIOR JAVA DEVELOPER** * **Location:** CDMX, Mexico. * **Work Mode:** Remote. **Requirements:** * 6 months to 1 year of backend experience using Java and Spring Boot. * Spring Boot and Spring Framework: Practical experience developing REST APIs with Spring Boot, Spring Data JPA, and Spring Security. * Proficiency in building, designing, and developing RESTful APIs, applying development best practices and automated testing. * REST API Design: Knowledge of REST principles, HTTP verbs, and status codes. * Participate in microservice architecture design. * Collaborate in code reviews. * Databases: Desired knowledge of relational databases (PostgreSQL, MySQL) and basic knowledge of NoSQL. * Ability to write SQL queries and use ORMs (Hibernate/JPA). * Document APIs for consumption by other teams. * Identify and resolve bugs and performance issues. * Follow client processes to deploy microservices to production. * Testing: Experience with unit testing (JUnit, Mockito). * Version Control and Repositories: GitHub, Git Flow, GitHub Flow.