- PoC with TimescaleDB managing millions of time series data, reducing storage by 92% and improving response time by 10%. - Design and implement key business features on Springboot and Nest.js both frameworks. - Event Driven system design and implementation. - Raise test coverage to 60% on significant functions. - Redevelop significant applications for scalability and readability.

- Client Product Development: Collaborated with a U.S.-based software company to develop a unemployment insurance management platform for state governments, enabling their administrators to efficiently manage unemployment benefit cases. - Role: Focused on feature development, including requirement analysis, system design, and implementation. - Key Technologies: Git, Jenkins, Java, Spring Boot, Hibernate, Spring Data JPA, AWS (EC2, CloudWatch), Docker, RabbitMQ, Spring Cloud microservices architecture. - Contributions: - Optimization: - Designed and implemented table indexing combined with Redis caching, reducing database query response time by 20% and alleviating database load. - Utilized RabbitMQ to enable asynchronous execution of tasks, effectively improving system throughput and reducing response times for high-volume requests. - Significantly minimized occurrences of 504 Gateway Timeout by enhancing request handling for large data volumes through better task delegation and resource utilization. - Refactoring: - Refactored the existing Document Service to improve modularity, scalability, and reusability, addressing the system’s ability to adapt to new requirements. - Developed a Base Document generation feature, allowing templates to dynamically include appropriate content based on the target language, meeting multi-language requirements. - Enabled seamless support for diverse document formats by incorporating modular designs for additional template and localization integrations. - Impact: Delivered a robust and scalable solution tailored to the client’s needs, improving the system’s reliability, responsiveness, and adaptability in a multi-language environment, and empowering state governments to better manage unemployment insurance cases. - Internal Employee Service System Development: Served in WITS’s internal IT team, focusing on developing systems to enhance internal employee service processes. - Role: Independently developed features, conducted functional analysis, and facilitated internal communication to align requirements with stakeholders. - Key Technologies: Git, Jenkins, Java, Spring Framework (customized), Docker, JSP. - Contributions: - Designed and implemented an online resignation management feature, transitioning the previously paper-based resignation process to a fully digital workflow. - Integrated the resignation feature into the existing customized Spring Framework platform, ensuring seamless compatibility and usability within the broader system. - Played a dual role as a Technical Mentor, guiding junior developers to improve their coding skills and problem-solving abilities. - Team and Process Improvements: - Introduced Agile development methodologies to the internal IT team, optimizing workflows and improving efficiency. - Established a Code Review process to enhance code quality, promote knowledge sharing, and foster collaboration within the team. - Encouraged structured sprint planning and iterative development cycles to improve team delivery cadence. - Impact: Improved the efficiency and transparency of the employee resignation process, reduced administrative overhead, and enhanced the team’s productivity through process optimizations and mentoring.

- Manufacturing Information Systems Development and Maintenance: Focused on ensuring the stability and scalability of systems critical to the wafer probing production line. - Role: Developed and maintained systems for batch tracking and B2B data exchange, while coordinating with clients and internal teams to align on program requirements. - Key Technologies: Java, EJB, Perl, ShellScript. - Contributions: - Maintained and enhanced the batch tracking system, ensuring accurate tracking and traceability of production data across the wafer probing process. - Developed and supported a B2B data exchange system, enabling efficient and reliable data communication between internal systems and external business partners. - Implemented automated scheduling programs using Perl and ShellScript, streamlining repetitive tasks and reducing manual errors. - Collaborated with clients and internal departments to gather, analyze, and refine requirements, ensuring the delivered solutions met stakeholder expectations. - Monitored and optimized system stability, ensuring uninterrupted operation of critical manufacturing processes. - Impact: Enhanced the efficiency of production line operations, improved data exchange reliability with business partners, minimized downtime through proactive system maintenance, and strengthened cross-functional collaboration through effective requirement alignment.