Job Summary: We are seeking a Backend Java developer to build robust, scalable, and high-performance solutions, contributing to innovative technology projects. Key Responsibilities: 1. Develop backend services and RESTful APIs with modern Java 2. Participate in the evolution of architectures such as microservices and DDD 3. Optimize performance and maintain code quality Are you passionate about building robust, scalable, and high-performance solutions? We are looking for a **Backend Java** developer eager to participate in innovative technology projects and contribute to developing business-critical applications. **What would your responsibilities be?** * Design, develop, and maintain backend services and RESTful APIs using Java 8, 11, 17 or newer LTS versions. * Apply functional programming (streams, lambdas, Optionals) and design patterns specific to modern Java. * Implement persistence layers with JPA/Hibernate, Spring Data, and relational databases (PostgreSQL, MySQL, Oracle) as well as non-relational databases (MongoDB, Redis). * Build robust applications using the Spring ecosystem (Spring Boot, Spring MVC, Spring Security, Spring Cloud). * Manage concurrency, threads, and collections leveraging improvements in \`java.util.concurrent\` and \`CompletableFuture\`. * Write unit and integration tests using JUnit 5, Mockito, and Testcontainers. \- Integrate systems via asynchronous messaging (RabbitMQ, Kafka, ActiveMQ). * Participate in architectural evolution: microservices, DDD, event-driven, hexagonal. * Collaborate on performance optimization: memory analysis, garbage collection, profiling. * Maintain code quality using tools such as SonarQube, SpotBugs, and Checkstyle. **What do we require from you?** **Bachelor’s degree or engineering degree in Computer Science, Systems Engineering, or related field. (Degree mandatory).** * Minimum 3–5 years of professional backend development experience with Java (excluding internships). * Experience with Java 17\+ (records, sealed classes, pattern matching, text blocks). * Knowledge of containers (Docker) and orchestration (Kubernetes). * Familiarity with cloud platforms (AWS, GCP or Azure) and their SDKs. * Experience with NoSQL databases (MongoDB, Cassandra, Redis). * Implementation of security (OAuth2, JWT, Spring Security). * Usage of Lombok, MapStruct, Feign clients. * Knowledge of reactive architecture (WebFlux, Reactor Core). * Participation in open-source projects or contributions to the Java community. **What benefits would you receive?** * Statutory benefits from day one * Base salary of $30,000 to $35,000 net * **On-site work located in the south of CDMX.** * Work modality: Hybrid (3 days in office, 2 days remote) If you are interested in participating in this process, please apply through this channel with your updated CV. If you do not meet the requirements at this time, we will retain your information for future opportunities matching your profile. Employment type: Full-time Salary: $30,000\.00 \- $35,000\.00 per month Education: * Completed bachelor’s degree (Preferred) Experience: * Java: 4 years (Mandatory) * Docker: 4 years (Mandatory) * MongoDB: 4 years (Mandatory) Work location: On-site employment