Achmad Yukrisna

Senior Mobile Engineer & Architect with 5+ years of experience, expertise in building high-performance Native Android (Kotlin), iOS (Swift), and Cross-platform (Flutter) applications. Specialist in Systems Integration and offline-tolerant POS architectures, bridging the gap between complex hardware (IoT, BLE, RFID) and scalable software architectures. Proven track record in delivering solid solutions for Healthcare, E-commerce, Fintech, and Logistics sectors using Clean Architecture and State Management, with a strong focus on Unit & Integration Testing to maintain 99.9% application stability.

Adept at AI-augmented engineering, leveraging modern AI tools to accelerate development cycles while maintaining rigorous code quality and architectural integrity.

Mobile Engineer - Wowrack Indonesia - Remote/Hybrid

(2023-04 - 2026-04)

Architected and maintained scalable Flutter applications for global Smart Home & IoT ecosystems (Stadium & NotoLabs). Integrated Tuya SDK to enable seamless smart device orchestration and complex automation logic, ensuring 99.9% state consistency across diverse hardware environments.
Reduced device monitoring latency by 15% through the implementation of real-time data streaming via WebSockets and low-energy BLE connectivity.
Optimized industrial industrial workflows by developing specialized offline-first Android solutions for Zebra MC3300 RFID and UHF-RH03 handheld terminals, ensuring resilient UI and state consistency even in unreliable network conditions, using Original SDK of Zebra and UHF with method-channel, increasing asset tracking accuracy by 25% for enterprise clients.
Accelerated feature delivery by 20% through the strategic integration of AI-assisted development tools to refactor legacy modules and improve code maintainability.
Collaborated with cross-functional teams across Indonesia and USA (Wowrack Global) to align mobile infrastructure with international server standards.
Key Projects: IoT Stadium App, NotoLabs App, IoT Stadium-RFID.

Mobile Developer - Maven Digital Asia - Remote

(2021-06 - 2023-03)

Collaborated directly with Singapore-based stakeholders (NTU, IFoundries, HCA Hospice) to gather technical requirements, ensuring 100% alignment with international project standards and security protocols.
Developed the NTU Smart Campus (Hall Aircon) ecosystem for Nanyang Technological University using Flutter (Android & iOS), integrating complex scheduling APIs for a global student body and maintaining a stable system for over 1,000+ downloads.
Engineered the COLLIN'S® Rewards mobile platform using a scalable Native Kotlin architecture and Swift, successfully supporting high-traffic reservations and loyalty program synchronization for 50,000+ users with a 4.3-star rating on Google Play.
Developed a cross-platform e-commerce and retail POS-style solution solution (VinGeek Singapore) in partnership with IFoundries, enabling real-time inventory tracking and expanding digital sales reach in the SG market.
Streamlined healthcare operations for HCA Hospice Singapore and Seraphim (Indonesia) by building solid Android solutions (Kotlin/MVVM) that optimized internal medical workflows and patient management.
Translated diverse client requirements into production-ready features using Clean Architecture, resulting in a 15% increase in user engagement across all platforms by reducing app latency and improving state consistency.
Maintained high software quality standards across both Native and Cross-platform environments, Published and managed end-to-end deployments for apps on Google Play Store and Apple App Store, maintaining high user ratings 4.5+ stars and ensuring long-term multi-regional support.
Key Projects: NTU Smart Campus (SG), COLLIN'S® Rewards (SG), VinGeek (SG), HCA Hospice (SG), Seraphim (ID).

Mobile Developer Maintainer - IndiHealth Indonesia - Remote

(2022-01 - 2022-03)

Enhanced telemedicine video call stability by integrating Jitsi Meet SDK and optimizing Android core services to handle a 25% increase in concurrent patient-doctor traffic.
Maintained and patched critical bugs for the IDok and IndiHealth platforms, ensuring HIPAA-compliant data handling and smooth user experience.
Key Projects: INDIHEALTH App, IDok App.

Freelance Mobile Developer - Propnex+ Indonesia - Remote

(2023-03 - 2023-12)

Refactored legacy real estate application codebase by migrating to MVVM architecture and Provider, resolving long-standing technical debt and improving app scalability.
Reduced application crash rate by 30% through rigorous debugging and performance profiling, directly leading to higher user retention among property agents.
Delivered UI/UX enhancements that streamlined the property listing process, resulting in a more responsive and reliable, achieving a 5.0-star user rating on the App Store and securing 1k+ downloads
Key Project: Propnex+ App.

Mobile Developer Maintainer - GeekGarden Indonesia - Remote

(2022-01 - 2022-03)

Developed core cryptocurrency trading features for the 'Vonix' platform using Kotlin (MVVM), focusing on real-time market data visualization via REST APIs.
Implemented secure biometric authentication and responsive UI components to ensure a seamless and safe trading environment for users.
Key Project: Vonix App.

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