Junior Java Developer

Deskripsi pekerjaan Junior Java Developer PT Aktualisasi Gratia Talenta Indonesia

Job Description / Responsibilities

• Develop, maintain, and enhance backend applications using Java and Spring Boot.
• Implement and support payment switching systems and financial transaction processing applications.
• Work with TCP/IP communication protocols to support connectivity and data exchange between payment systems.
• Develop, process, and troubleshoot financial transaction messages using the ISO 8583 standard.
• Utilize the jPOS library to implement and maintain ISO 8583-based messaging and transaction processing.
• Implement and maintain circuit breaker patterns to improve system resilience and handle service failures.

Participate in the complete Software Development Life Cycle (SDLC), including requirement analysis, design, development, testing, deployment, and maintenance.

• Perform application troubleshooting, incident analysis, bug fixing, and root cause analysis to ensure system stability.
• Collaborate with cross-functional teams, including business analysts, QA engineers, infrastructure teams, and other developers.
• Provide 24/7 application support through a shift-based schedule, including support outside regular working hours when required.
• Prepare and maintain technical documentation, including application specifications, troubleshooting guides, and support procedures.
• Ensure application performance, reliability, security, and compliance with applicable technical and operational standards.

Requirements / Qualifications

• Bachelor’s degree (S1) in Computer Science, Information Technology, Software Engineering, or a related field.
• Minimum of 1 year of professional experience in Java application development.
• Strong programming skills in Java and Spring Boot.
• Good understanding of TCP/IP networking concepts and client-server communication.
• Good understanding of ISO 8583 financial messaging standards and payment transaction processing.