A Senior Full Stack Engineer with 7+ years of experience delivering scalable software products across fintech, banking, cryptocurrency, AI, digital media, and cloud-connected platforms. Proven track record in designing complete end-to-end production systems, seamlessly integrating high-performance Android and Flutter applications with robust Backend Development architectures using Node.js, Express.js, and REST APIs. Expertise in engineering Offline-First Architecture, real-time WebSocket communication, and Distributed Systems backed by PostgreSQL and Firebase. Recognized for Technical Architecture Leadership, driving CI/ CD Automation, and implementing Secure Authentication to guarantee 24/7 reliability. Adept at Cloud Integration and building scalable AI-powered products utilizing the Google Gemini API. Highly focused on performance optimization and collaborating across engineering teams to ship scalable applications for global technology ecosystems.
Email: gayuhnh@gmail.com | Phone: +62 857 7195 3079 | Location: Jakarta, Indonesia
PT. Alternative Media Group — Jakarta / Indonesia
Architected a distributed Vehicle Media Experience Platform designed for reliable 24/7 operation across transportation fleets. Engineered an offline-first media delivery system using Room-based data synchronization and a custom download manager to maintain content availability during network outages. Developed a server-driven UI and media playback engine, integrated real-time campaign scheduling through WebSocket and REST APIs, and implemented human detection using Google ML Kit to optimize media exposure and device lifecycle management. Improved operational resilience through self-healing recovery mechanisms, WorkManager, background services, and proactive Firebase Analytics and Crashlytics monitoring.
Koinworks — Jakarta, Indonesia
Led mobile platform engineering initiatives for a fintech super app, driving the adoption of Modular Clean Architecture, Kotlin DSL, and Jetpack Compose to improve maintainability and scalability. Architected centralized analytics, remote configuration, and deep-linking platforms to establish reusable foundational capabilities across the application ecosystem. Designed secure authentication and KYC integrations incorporating Dukcapil verification, VIDA Liveness, and Innovatrics SDK, while strengthening application security through SSL pinning, root detection, and emulator detection. Streamlined software delivery through GitLab CI/CD automation and drove performance optimization initiatives focused on reducing application crashes, improving stability, and enhancing user retention.
Mr Silver Taurus Studio — Jakarta / Indonesia
Built and delivered end-to-end software solutions for client projects and independent products, spanning Android and Flutter applications, backend services, cloud infrastructure, and AI-powered platforms. Designed scalable mobile architectures using Clean Architecture and developed backend services with Node.js and Express.js, supporting REST APIs and real-time WebSocket communication. Integrated Firebase Authentication, Firestore, Remote Config, Cloud Messaging, Google Cloud Storage, PostgreSQL, and SQLite to deliver reliable, cloud-connected applications. Automated build and distribution workflows using GitHub Actions and Fastlane, and developed AI-powered products using the Google Gemini API, including Insight CV for AI-driven resume analysis and personalized ATS-oriented recommendations.
Netzme — Jakarta / Indonesia
Contributed to the development of scalable digital payment and merchant platforms, including digital wallet capabilities, QRIS integration, peer-to-peer payments, and voucher transactions. Developed merchant-facing solutions with point-of-sale tools, invoicing workflows, and business networking capabilities. Implemented real-time chat and social networking features using WebSocket-based communication, while optimizing application performance and strengthening security controls to protect sensitive merchant data and support reliable financial transactions.
PT. Binary Works Indonesia — Jakarta / Indonesia
Delivered cross-platform software solutions encompassing Android applications, web-based CRM systems, and backend APIs. Developed point-of-sale applications and an apartment rental platform, collaborating on UI/UX implementation and deployment workflows. Engineered real-time Automatic License Plate Recognition (ALPR) and CCTV integration systems to support automated security monitoring. Improved data management and application functionality through MySQL query optimization, authentication implementation, barcode integration, and dynamic reporting modules.
University of Diponegoro — Semarang, Indonesia
Specialized in embedded systems, biomedical instrumentation, and sensor-based measurement technologies. Thesis focused on designing a lung volume measurement instrument using a pressure sensor integrated with Arduino Uno R3 and Bluetooth communication for wireless data transmission.
A scalable 24/7 in-vehicle media platform for taxi and ride-hailing fleets. Features offline-first media delivery, deterministic ad scheduling, Media3 ExoPlayer playback, server-driven layouts, real-time device control, passenger detection, and self-healing recovery mechanisms.
Engineered core financial features across investments, business financing, and P2P lending. Developed onboarding and KYC workflows, integrated Dukcapil and liveness verification, established centralized analytics, deep-linking, and remote configuration platforms, and modernized the application with Jetpack Compose and Kotlin DSL.
Built a social reading application from the ground up, enabling authors to publish stories and readers to discover content, follow writers, and interact through comments, likes, sharing, and notifications. Implemented search, categorized discovery, and Firebase-powered engagement workflows.
Enhanced a digital banking application through architectural refactoring, credit card activation, installment conversion, and e-wallet top-up integrations. Improved transactional notifications, application stability, and security through encrypted storage, SQLCipher, secure PIN validation, and NDK-based key protection.
Developed digital wallet, QRIS, P2P transfer, voucher, and social networking capabilities. Built merchant tools for product management, QR-based transactions, and invoice generation, alongside chat, chatbot, notifications, secure transaction flows, and application performance improvements.
“I’ve had the pleasure of working with Gayuh, an exceptional Android Engineer with a deep understanding of mobile architecture and clean code principles. Their attention to detail and problem-solving mindset make them a valuable asset to any development team.”
“As workmate and Manager, Gayuh work very well. Open to receiving feedback and always give suggestions about the task. It’s my pleasure to working with him.”
“Gayuh is a great person to work. He is a curious person and a fast learner. I highly recommend Gayuh as an Android Software Developer and would like to work together again.”
“Having a great time working with Gayuh. Hard working person, fast learner and great adaptability.”