Gerzha Hayat Prakarsha

• Developed responsive web applications using React.js and Next.js, improving usability and page load performance.
• Designed and maintained RESTful APIs using .NET, integrating scalable databases and services.

Senior Mobile & Fullstack Developer with 5+ years of experience building and scaling production-grade mobile and web applications used by millions of users across Southeast Asia and global markets. Strong expertise in Flutter (Android & iOS), mobile performance optimization, app security, and fullstack development using React.js, Next.js, Node.js and .NET.

• Built and maintained Flutter mobile applications (Android & iOS) serving educators, parents, and partners across multiple countries.
• Optimized cross-platform mobile apps on iOS and Android using Flutter, focusing on performance, security, and design.
• Migrated legacy mobile applications to Flutter, unifying codebases and reducing long-term maintenance costs.
• Improved app stability by signif

• Developed and maintained BRI Ceria, a digital lending application used by large-scale banking customers.
• Migrated Android Native (Java) modules to Flutter, accelerating feature delivery across platforms.
• Implemented secure authentication flows, loan applications, payments, and notification systems.
• Integrated liveness detection (face verification) and analytics to enhance fraud prevention

• Led migration from React Native to Flutter, improving performance and development efficiency.
• Defined state management architecture and development standards for the mobile team.
• Mentored developers, delegated tasks, and aligned weekly milestones with project managers
• Delivered secure, scalable mobile applications for Android and iOS.

• Built and maintained Flutter-based mobile applications
• Focused on performance optimization, security improvements, and production readiness.

• Managed installation, monitoring, and maintenance of computer lab infrastructure, ensuring system stability and availability.
• Provided technical support to lecturers and students during practical lab sessions.
• Documented and reported monthly maintenance activities and system performance.

• Built an Android Native (Java) application to streamline internal processes within the Directorate General of Immigration.
• Gathered requirements, implemented features, and delivered working solutions in collaboration with internal teams.
• Presented application outcomes to senior officials and documented progress through structured weekly reports.