Junior Backend Developer (Java)

VLink Inc; Jakarta Pusat; Presencial; IDR 180.000.000 - 300.000.000; Tempo integral

Resumo da vaga

VLink Inc in Jakarta is seeking a skilled Java backend developer with strong Spring Boot experience to design, build, and maintain high-performance backend services.

You will develop RESTful APIs, integrate with databases such as MS SQL Server and PostgreSQL, and collaborate with frontend teams and QA to ensure quality and scalability.

This role emphasizes clean code, testing, and documentation, with opportunities to contribute to architecture and enterprise-level applications.

Qualificações

• Strong Java programming skills with backend focus.
• Hands-on Spring Boot development and configuration.
• Experience with Spring MVC and dependency injection.
• Familiarity with ORM using Hibernate/JPA.
• Design, develop, and consume RESTful APIs.

Responsabilidades

• Design, develop, and maintain scalable Java backend applications.
• Build and optimize RESTful APIs for frontend and third-party integrations.
• Handle database interactions with SQL Server and PostgreSQL.
• Ensure performance, reliability, and maintainability.
• Collaborate with cross-functional teams throughout the SDLC.
• Prepare technical documentation and reviews.

Conhecimentos

Java

Spring Boot

Spring Framework

Hibernate/JPA

RESTful APIs design

SQL (MS SQL Server, PostgreSQL)

Database design & optimization

OOP & software design principles

Debugging & troubleshooting

Backend architecture & scalability

Descrição da vaga

Technical Requirements & Qualifications:

• Strong proficiency in Java programming, with solid experience in developing backend applications using Java-based technologies.
• Hands‑on experience with Spring Boot, including developing, configuring, and maintaining backend services and enterprise‑level applications.
• Good understanding of the Spring Framework ecosystem, particularly Spring Boot, Spring MVC, and dependency injection.
• Familiarity with Hibernate and JPA for Object‑Relational Mapping (ORM), database interactions, and efficient data persistence.
• Strong understanding and practical experience in designing, developing, consuming, and integrating RESTful APIs.
• Proficient in database management and SQL queries, particularly Microsoft SQL Server and PostgreSQL, including database design, query optimization, and data manipulation.
• Good understanding of backend development principles, application architecture, object‑oriented programming (OOP), and software development best practices.
• Proven experience in developing, enhancing, debugging, and maintaining multiple applications, particularly those built using Java and Spring Boot.
• Ability to analyze technical requirements, troubleshoot application issues, and deliver effective backend solutions.
• Experience working in the Financial Services and/or Banking industry will be considered a strong advantage.

Job Description & Responsibilities:

• Design, develop, implement, and maintain robust, scalable, and high‑performance backend applications using Java and Spring Boot.
• Develop and enhance backend services, business logic, and application components based on functional and technical requirements.
• Build, develop, and maintain RESTful APIs to support seamless communication and integration between frontend applications, backend services, and third‑party systems.
• Implement and manage database interactions using Hibernate/JPA, including entity mapping, ORM configuration, data persistence, and transaction management.
• Design, develop, and optimize database structures, SQL queries, and data operations using Microsoft SQL Server and PostgreSQL.
• Ensure application performance, scalability, reliability, and maintainability through efficient coding practices and backend development standards.
• Perform debugging, troubleshooting, root cause analysis, and issue resolution to ensure application stability and optimal performance.
• Conduct application testing, code reviews, and technical validation to maintain code quality and minimize potential defects.
• Collaborate with cross‑functional teams, including Frontend Developers, QA Engineers, System Analysts, and other technical stakeholders, throughout the software development lifecycle.
• Analyze business and technical requirements and translate them into effective backend solutions and application functionalities.
• Maintain existing applications by implementing enhancements, resolving technical issues, and ensuring compatibility with evolving business requirements.
• Prepare and maintain technical documentation related to backend architecture, API specifications, database structures, and application functionalities.