We are looking for a **Senior Backend Developer** with over 5 years of experience in **Java and Spring**, to develop scalable backend solutions under microservices architectures. **Responsibilities:** * Backend solution development and design. * Participation in architectural decisions. * Implementation of best practices and testing. * Code reviews and technical mentoring. **Requirements:** * Over 5 years of backend Java experience. * Residence in CDMX or nearby areas, with availability for in-person commuting (maximum 2 hours). * Experience in critical production environments with microservices and high security and availability standards. * Proficiency in: * Java SE / EE, Spring Boot, Spring Security, Spring Cloud, Microservices, JUnit 5, Mockito, MongoDB, Redis, SQL, GIT, OAuth. * **Soft skills:** * Technical leadership. * Analytical thinking. * Effective communication. * Priority management. **We offer:** * Hybrid work model: 95% remote / 5% on-site. * High-impact projects. * Premium benefits. Employment type: Indefinite-term contract Salary: $35,000.00 \- $40,000.00 per month Benefits: * Medical expense insurance * Major medical expense insurance * Life insurance Work location: Hybrid remote work in 06100, Hipódromo, CDMX