Back End Consultant

Company DescriptionIDStar is an Indonesia-based IT consultant and digital transformation enabler, trusted by over 30 enterprise clients across Asia, Oceania, North America, and Africa. With ISO 9001 & 27001 certifications, IDStar has delivered more than 1,000 successful case studies through the combination of local expertise and global execution. With over 900 pre-screened talents and partnerships with leading tech providers like UiPath, IBM, and Josys, we empower businesses to scale through IT talent solutions, Intelligent Automation (RPA), and SaaS support. IDStar is reviewed positively on GoodFirms and Glassdoor.Role DescriptionThis is an on-site contract role for a Back End Consultant located in the Jakarta Metropolitan Area. The Back End Consultant will be responsible for designing, developing, and maintaining server-side applications, with tasks including coding, debugging, and testing. The role will also involve collaborating with front-end developers, troubleshooting back-end issues, and ensuring system security and data protection.Responsibilities :Design, develop, and maintain backend services and RESTful APIs using Golang and Java Spring Boot.Collaborate with frontend and mobile teams to define API contracts and ensure smooth integration.Implement robust, secure, and scalable backend architectures.Optimize application performance and ensure high availability and reliability.Develop and maintain database schemas, queries, and stored procedures (PostgreSQL, MySQL, or Oracle).Troubleshoot, debug, and resolve backend issues to maintain system stability.Participate in code reviews, system design discussions, and technical documentation.Integrate third-party services and APIs as needed.Collaborate within an Agile/Scrum environment to deliver high-quality deliverables on schedule.Ensure adherence to coding standards, security practices, and version control policies.Requirements:Bachelor’s degree in Computer Science, Information Technology, or a related field.2–4 years of experience in backend development.Strong proficiency in Golang and Java Spring Boot frameworks.Experience developing RESTful APIs and microservices architecture.Good understanding of object-oriented programming (OOP) and concurrency concepts.Experience with SQL and relational databases (PostgreSQL, MySQL, or Oracle).Familiarity with Docker, Kubernetes, or other containerization technologies is a plus.Understanding of CI/CD pipelines and deployment workflows.Knowledge of Git or other version control systems.Strong analytical, problem-solving, and debugging skills.Familiarity with Agile development methodologies (Scrum/Kanban).