Java Backend Senior Developer

7 hours ago

Kuala Lumpur, Kuala Lumpur, Malaysia MindGraph Full time

Key Responsibilities:


• Design, develop, and maintain backend services and APIs using Java and related frameworks.


• Build and support RESTful and SOAP APIs, ensuring performance, scalability, and reliability.


• Comfortable working with legacy Java versions (e.g., Java 1.4 to 1.8) and maintaining older codebases.


• Maintain and refactor legacy systems to improve stability, security, and performance.


• Write clean, efficient Java code, following best practices for memory and error handling.


• Work with relational databases (e.g. Oracle, MySQL, PostgreSQL), including complex queries and stored procedures.


• Use tools like WinSCP and PuTTY for accessing servers, log tracing, and manual deployment tasks.


• Integrate with internal and external systems using standard HTTP protocols (JSON, XML).


• Participate across the full SDLC: requirements gathering, development, testing, deployment, and production support.


• Ensure solutions adhere to secure coding practices and meet compliance standards required in banking environments.


• Create and maintain clear technical documentation and assist junior developers when needed.


• Collaborate closely with frontend teams working in for API integration and troubleshooting.


• Allocate daily work, review their codes & provide guidance to junior developers.


• Support testing, simulate and investigate the tickets raised, if relate to codes written by our team members then we need to fix, test and deploy.


• Track and monitor daily work progress from junior developers.


• Prepare status report to stakeholders.

Required Skills and Qualifications:


• 7+ years of backend development experience in Java.


• Strong understanding of Java core concepts: collections, threading, exception handling, and memory management.


• Experience working with legacy Java versions (Java 1.4 to 1.8) and codebases.


• Proficiency in developing REST/SOAP web services and handling JSON/XML formats.


• Solid SQL skills, including performance tuning and writing stored procedures.


• Familiar with Maven, Git/SVN, and deployment to application servers such as Tomcat.


• Experience with remote tools like WinSCP, PuTTY, and Linux-based command-line access.


• Good debugging and backend problem-solving skills.


• Understanding of secure API development, particularly in regulated domains like banking.


• Comfortable working in Agile teams and communicating across cross-functional groups.

Preferred Qualifications:


• Exposure to legacy frameworks like Apache Struts and/or modern Java frameworks like Spring Boot.


• Experience collaborating with frontend teams.


• Familiarity with CI/CD tools, basic Docker usage, and cloud platforms (AWS, Azure, or GCP) is a plus.


• Knowledge of microservices design patterns and distributed systems architecture.

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