Agastya Darma Laksana Email & Phone Number

As an Engineering Manager leading the Mobile Platform Team at Ruangguru, I am responsible for managing and enhancing the performance and scalability of both React Native hybrid apps and native iOS/Android applications across the Ruangguru ecosystem. My team drives the continuous improvement of the mobile experience for millions of users across Indonesia, ensuring seamless learning experiences across a diverse portfolio of educational apps.

As the Tech Lead Manager for Ruangguru’s Frontend Platform Team, I lead the development of a universal frontend architecture using React Native and Tamagui to deliver a one codebase solution for both web and mobile apps. By embedding hybrid React Native screens in existing native iOS/Android apps, we optimize code reusability while maintaining high performance and a consistent user experience.Focused on engineering efficiency and scalability, my team ensures seamless frontend delivery… Show more As the Tech Lead Manager for Ruangguru’s Frontend Platform Team, I lead the development of a universal frontend architecture using React Native and Tamagui to deliver a one codebase solution for both web and mobile apps. By embedding hybrid React Native screens in existing native iOS/Android apps, we optimize code reusability while maintaining high performance and a consistent user experience.Focused on engineering efficiency and scalability, my team ensures seamless frontend delivery across Ruangguru’s product ecosystem, impacting millions of learners across multiple platforms. Show less

As the Tech Lead Manager of the React Native Platform Team at Ruangguru, I lead the effort to enable seamless integration and optimization of React Native across the Ruangguru family of apps. My team's focus is building a scalable and maintainable React Native infrastructure that enhances cross-platform development for key products, including:BrainAcademy : Personalized learning solutions with live and interactive sessions.Roboguru : AI-powered homework help and tutoring.HRApps… Show more As the Tech Lead Manager of the React Native Platform Team at Ruangguru, I lead the effort to enable seamless integration and optimization of React Native across the Ruangguru family of apps. My team's focus is building a scalable and maintainable React Native infrastructure that enhances cross-platform development for key products, including:BrainAcademy : Personalized learning solutions with live and interactive sessions.Roboguru : AI-powered homework help and tutoring.HRApps : Workforce and HR management tools.We create flexible, high-performance architectures that empower consistent React Native adoption across both mobile platforms, ensuring speed, reliability, and unified user experiences. Show less

Malang, East Java, Indonesia

As a Staff Software Engineer, I spearheaded significant technical enhancements in the SkillAcademy App, focusing on optimizing performance and streamlining development processes. My key contributions include:- Conducted comprehensive reverse engineering of the SkillAcademy App to identify and resolve performance and usability issues.- Migrated the app from the default React Native JavaScriptCore engine to Hermes, resulting in improved runtime efficiency.- Streamlined the Android… Show more As a Staff Software Engineer, I spearheaded significant technical enhancements in the SkillAcademy App, focusing on optimizing performance and streamlining development processes. My key contributions include:- Conducted comprehensive reverse engineering of the SkillAcademy App to identify and resolve performance and usability issues.- Migrated the app from the default React Native JavaScriptCore engine to Hermes, resulting in improved runtime efficiency.- Streamlined the Android production environment by removing unused React Native/Native ABIs, reducing the app's footprint.- Implemented lazy loading to improve the app's start loading times and overall user experience.- Applied Proguard for obfuscation and size reduction, enhancing app security and efficiency.- Developed and architected a mobile app CI/CD pipeline using Fastlane and Jenkins, culminating in deployment through App Center. This transitioned the app development process from manual builds to an automated system.Impactful Results:- CI/CD Efficiency: Transformed the manual build process into an automated CI/CD pipeline, resulting in a 50% reduction in build and deployment time.- App Size Reduction: Reduced the APK size from 80MB to 70MB in the uncompressed multi-architecture APK, streamlining the app for users.- Startup Time Improvement: Cut down the app's startup time from 5 seconds to 2 seconds, enhancing the user experience.- Consistent App Performance: Achieved a stable bottom frame rate of 30 FPS, a significant improvement from the previous unstable rate that could drop as low as 1/2 FPS. Show less

Jakarta

- Migration to Apollo GraphQLSuccessfully migrated Kumparan's mobile site from Redux Saga to Apollo GraphQL, resulting in increase in data retrieval efficiency and a significant improvement in site responsiveness and user experience.- Cross-Platform UI DevelopmentDeveloped the Kumparan UI Kit for both React and React Native, achieving a unified and consistent user interface across platforms. This led to a reduction in UI development time and enhanced user satisfaction.-… Show more - Migration to Apollo GraphQLSuccessfully migrated Kumparan's mobile site from Redux Saga to Apollo GraphQL, resulting in increase in data retrieval efficiency and a significant improvement in site responsiveness and user experience.- Cross-Platform UI DevelopmentDeveloped the Kumparan UI Kit for both React and React Native, achieving a unified and consistent user interface across platforms. This led to a reduction in UI development time and enhanced user satisfaction.- Cordova Mobile App IntegrationFacilitated a smooth transition of mobile applications to Cordova, ensuring zero downtime during the process. This temporary migration maintained a seamless user experience, leading to a near zero drop in user retention during the transition phase.- Mobile App Rewrite with React Native, Apollo and GraphQLPlayed a pivotal role in rewriting Kumparan's Mobile App using Apollo and GraphQL, which resulted in a faster load time and a more intuitive user interface, contributing to a growth in daily active users. Show less

Greater Jakarta Area, Indonesia

In my role with the Developer Circles from Facebook program, I introduce and promote Facebook’s latest APIs and core system frameworks that power the platform experiences on Facebook, Instagram, and WhatsApp. I also help developers adopt Facebook's open-source technologies such as React, React Native, and Relay. By leading workshops and community events, I ensure developers can leverage these tools to build impactful, scalable solutions.