dwikiramdani

Tech stack and tools: JavaScript, TypeScript, React, Next.js, React Native, Swift Responsibilities: - Architected and developed the user-facing mobile application from the ground up using React Native and Expo, establishing a scalable foundation for modular feature development and rapid iteration. - Implemented Apple Pay integration, including secure token handling, payment sheet configuration, and backend coordination for transaction validation, enabling seamless in‑app payments. - Built a real-time service tracking feature using Google Maps Geolocation APIs, delivering live location updates, route visualization, and event-driven UI updates for ongoing orders. - Designed and implemented a reusable cross-platform UI component library shared across mobile and web, standardizing design patterns and improving development speed and visual consistency. - Collaborated closely with UI/UX designers and founders to translate wireframes and prototypes into production-quality interfaces, iterating quickly based on early user and stakeholder feedback.

Tech stack and tools: Flutter, Dart, Kotlin, Swift, CI/CD automation, MySQL, Material UI, Firebase, Datadog. Responsibilities: - Led the rebuild of the ePerpus mobile application from the ground up using Flutter and Dart, significantly improving codebase scalability, maintainability, and long-term feature extensibility. - Delivered an optimized version of ePerpus with enhanced device compatibility, ensuring seamless performance across the latest Android and iOS devices. - Led the enhancement of cross-platform document support by integrating a modern PDF/EPUB rendering engine, improving file accessibility and reading performance across multiple device types. - Collaborated on strengthening in-app content protection by implementing multi-layer security features, including double encryption, dynamic watermarking, and native-level screenshot prevention on both Android and iOS. - Contributed to product evolution by providing technical insights, validating feature feasibility, and actively participating in design and enhancement discussions. - Took full ownership of critical modules related to application stability, performance optimization, and new feature development, ensuring timely, high-quality deliverables. - Improved system observability by integrating Datadog APM into frontend and backend services, enabling better monitoring, performance tracing, and faster issue diagnosis.

Tech stack and tools: Flutter, Dart, Kotlin, Swift Responsibilities: - Developed PIMS, a multi-platform plantation management system, delivering mobile and web applications to digitalize worker attendance, task assignment workflows, and real-time harvest reporting for palm-oil field operations. - Architected and built the Flutter-based mobile application from the ground up with a modular, scalable architecture and maintainable state-management patterns, supporting evolving business requirements. - Designed and implemented a robust library of reusable UI components aligned with the design system, ensuring cross-platform consistency and improving development velocity for new features. - Worked closely with UI/UX designers to transform wireframes into production-ready interfaces, iterating through usability reviews and continuous feedback cycles. - Collaborated with backend engineers to integrate RESTful APIs, define data contracts, and optimize network requests, ensuring reliable synchronization of field operations data in challenging connectivity conditions.

Tech stack and tools: JavaScript, TypeScript, React Native, Swift Responsibilities: - Contributed to the development of the Zipkos mobile application using React Native, implementing features for property discovery, booking, tenant onboarding, and integration with IoT-based access control. - Collaborated with product managers to translate business requirements into scalable technical solutions and end-to-end user flows across search, booking, payment, and check-in. - Worked with UI/UX designers to implement pixel-accurate interfaces that adhere to the design system, mobile best practices, and accessibility guidelines. - Designed and implemented new features and modules, as well as maintained and enhanced existing ones, including refactoring legacy code, optimizing performance, and improving application stability. - Implemented QR-based scanning functionality to support cashless payment workflows and secure property access, including verification logic and transaction validation.

Tech stack and tools: Flutter, Dart, Kotlin, Swift, CI/CD automation, MySQL, Firebase. Responsibilities: - Developed and maintained the GOERS consumer mobile applications for Android and iOS using Flutter and native technologies, enabling users to discover events, purchase tickets, and manage their bookings. - Implemented and enhanced core ticketing features such as digital ticket display, QR-based validation, order history, and secure payment flows, improving the reliability and usability of the booking experience. - Contributed to the GOERS Experience Manager (GEM) ecosystem by building and refining mobile tools used by event organizers and venue operators for onsite check-in, visitor management, and ticket scanning. - Built and maintained the ticket scanner application (Android/iOS), optimizing QR scanning performance, offline handling, and validation logic to support high-traffic events and venues. - Collaborated with backend engineers to integrate RESTful APIs, refine data contracts, and improve error handling and retry strategies, resulting in more resilient user flows and fewer failed transactions. - Worked closely with product managers and designers to refine event discovery, checkout, and post‑purchase flows based on user feedback and analytics, improving overall user experience. - Participated in CI/CD automation for mobile releases, helping to streamline build, testing, and deployment pipelines to support frequent updates and hotfixes.