Develop and maintain backend applications using Java (Spring Boot) Design and implement RESTful APIs to support business requirements Collaborate with Business Analysts, QA Engineers, and other technical teams during development Perform debugging, troubleshooting, and application performance optimization Develop new features and enhance existing systems Ensure code quality by following best practices and participating in code reviews Support testing, deployment, and ongoing maintenance of applications Minimum Bachelor’s Degree (S1) in Computer Science, Information Technology, or related field Minimum GPA 3.00 (on a 4.00 scale) Minimum 1–4 years of experience as a Java Developer (open for Junior to Mid-level candidates) Strong proficiency in Java and Spring Boot framework Solid understanding of REST APIs, Microservices architecture, and system integration Experience with relational databases (MySQL, PostgreSQL, or similar) Familiar with Git version control Good understanding of OOP principles, clean code, and design patterns Willing to work full onsite in Jakarta area Open to contract-based employment