Position: Java Developer Location: ColombiaWork Model: Full time remote Experience Required: 4-7 years Summary Abacus is hiring an experienced Java Developer to design, develop, and deploy high-volume, low-latency microservices. The ideal candidate should be self-motivated, comfortable communicating with clients, and skilled in Spring Boot, Spring Cloud, PostgreSQL, and event-driven systems using Apache Kafka. Key Responsibilities - Design, develop, and deploy microservices using Spring Boot and the Spring Framework. - Build and optimize data persistence layers using JPA/Hibernate with PostgreSQL. - Develop and integrate RESTful APIs. - Implement distributed, event-driven systems using Apache Kafka. - Improve application performance using caching (Spring Cache, Caffeine). - Work with Spring Cloud for service discovery, API gateways, and circuit breakers. - Manage configurations through Spring Cloud Config. - Explore and integrate low-code/no-code (LCNC) solutions where relevant. - Collaborate with product managers, designers, and engineers to deliver high-quality features. - Participate in code reviews, testing, and debugging. - Troubleshoot and resolve complex production issues. - Lead and guide junior developers when required. Required Technical Skills - Strong proficiency in Java development. - Extensive experience with Spring Boot, Spring Cloud, and microservices architecture. - Hands-on experience with Apache Kafka. - Expertise in JPA/Hibernate and PostgreSQL with advanced SQL skills. - Good understanding of transactional management (@Transactional) and ACID compliance. - Experience designing and consuming RESTful APIs. - Familiarity with Spring Cache and Caffeine for caching. - Understanding of LCNC platforms for business process automation. - Experience with Git and CI/CD pipelines. General Skills - Experience leading development teams. - Strong client communication skills. - Self-motivated and able to manage work independently. - Good time management and attention to detail.