Senior Software Engineer (JAVA)

PT Infinitium Solutions; Jakarta Pusat; On-site; IDR 279,000,000 - 502,200,000; Full time

Job summary

PT Infinitium Solutions in Jakarta is seeking skilled software developers with at least five years of Java hands-on experience and a strong background in Spring and modern web technologies such as Thymeleaf, React, and RESTful services to join our team.

The role emphasizes high-quality, secure, and scalable code, collaboration with product, risk, and operations teams, and ongoing learning in a fast-paced e-business environment.

Qualifications

• Minimum 5 years of hands-on Java experience.
• Strong Spring framework and web technologies such as Thymeleaf, React, and RESTful services.
• Experience with SQL databases (PostgreSQL, SQL Server).
• Familiarity with Git, CI/CD pipelines, and Agile practices.
• Understanding of security and performance optimization.

Responsibilities

• Design, develop, and maintain high-quality software solutions.
• Collaborate with product, risk, operations, and compliance teams to deliver features safely.
• Write clean, scalable, and well-documented code following engineering and security best practices.
• Write and maintain unit and integration tests to ensure correctness and reliability.
• Participate in code reviews and provide constructive feedback.

Job description

We are seeking for skilled software developers with at least 5 years of hands-on experience in Java and a strong background in Spring and web technologies such as Thymeleaf, React.js and Restful web services (or equivalent frameworks). The ideal candidate should also have experience working with SQL databases like PostgreSQL, SQL Server, along with a solid understanding of application security and performance optimization. Familiarity with modern development workflows and tools such as Git, CI/CD pipelines and Agile practices is desirable.

Responsibilities

Design, develop, and maintain high-quality software solutions that support financial transactions and critical business systems.

Collaborate with cross-functional teams including product, risk, operations, and compliance to deliver new features safely and reliably.

Write clean, scalable, and well-documented code following engineering and security best practices.

Write and maintain unit and integration tests to ensure system correctness, reliability, and regression safety.

Participate in code reviews and provide constructive feedback with a strong focus on quality, security, and maintainability.

Troubleshoot, debug, and optimize systems with attention to performance, resilience, and data integrity in production environments.

Contribute to technical discussions and architectural decisions, balancing speed of delivery with risk and compliance considerations.

Continuously learn and apply new technologies, tools, and best practices to improve system stability, security, and development efficiency.

Added Advantage

Knowledge in payment or related system such as Payment Gateway, Reconciliation, Fraud Detection, 3DS authentication, etc

Experience with cloud platforms (AWS, Azure, or GCP).

Exposure to Docker, Kubernetes, or DevOps practices.

Awareness of security, compliance, or audit requirements (e.g. PCI-DSS, data protection).

PT Infinitium Solutions, a member of the Infinitium Group of companies provides end to- end solution to our customers venturing into the world of e-Business. From Web based applications, E-payment services to Mobile services, we have complete and comprehensive solutions to cater to our clients unique business environment needs. Over the years, the success of our business has been proven with reputable clients from various State Government, large MNCs, large Enterprises and SMIs. We are seeking committed and result-oriented team players for the following positions to be part of the dynamic team in Jakarta Office.