Developed and maintained the Vehicle Management System (VMS) website and a React-based Device Acceptance Progressive Web App (PWA) for vehicle acceptance, contributing across both the design and implementation phases. Implemented a barcode-scanning feature for GPS tracker registration, streamlining operational workflows and improving efficiency. Additionally, mentored new interns by providing technical guidance, conducting code reviews, and supporting their onboarding and professional development.

Worked on an IFRS 18 project for one of Indonesia's largest telecommunications companies, where I prepared client presentations, planned project timelines and sprint schedules, and collaborated with cross-functional teams to support project delivery. Developed an VBA scripts that detected 48% of data anomalies during the data migration process. Additionally, assisted consultants, managers, directors, and partners in developing business proposals for one of Indonesia's largest telecommunications companies.

Developed and implemented more than 10 features for the AI Accounting platform using Django and Angular, contributing to the 3E Accounting CRM system across Hong Kong, Singapore, Indonesia, and Malaysia, as well as the Financial Statement module for the Singapore and Malaysia markets. Collaborated closely with stakeholders to resolve client-reported issues and improve application stability, while optimizing database queries to achieve a 28% increase in performance and overall system efficiency.