Ashfaq Ahmad
Mobile App Developer with 6+ years of experience building performant, scalable, and secure React Native applications
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About
Mobile App Developer with 6+ years of experience building performant, scalable, and secure React Native applications across iOS and Android. Specializes in performance-first architecture, custom native module development, and full-stack ownership across mobile, web, and AWS cloud infrastructure. Proven track record of delivering production-grade software for large-scale consumer platforms (1M+ users) and mission-critical healthcare environments (NICU communication).
Skilled at bridging the JavaScript and native iOS/Android layers — including writing custom Turbo Modules wrapping SDKs like Amazon Chime and FFmpeg — when performance demands it.
Experience
Full-Stack Engineer - LuvviCare - Remote
(2023-02 - 2026-03)
- Full-Stack Ownership: Spearheaded the entire technical ecosystem for the LuvviCare healthcare platform — React Native mobile apps (LuvviParents, LuvviHospital), React.js admin dashboards, and AWS cloud backend.
- Real-Time Communication: Architected and integrated the AWS Chime SDK for real-time video calling and messaging between NICU families and hospital care staff, including channel membership management and translation pipelines.
- Mission-Critical Security: Developed specialized software for the NICU care department where data security, reliability, and precision are non-negotiable; implemented row-level security via AppSync VTL resolvers for hospital-scoped data isolation.
- AWS Infrastructure: Delivered cloud infrastructure leveraging 20+ AWS services including Cognito (multi-tenant hospital authentication), AppSync GraphQL with DynamoDB, Lambda, S3, and CDK infrastructure-as-code.
- Native Modules: Built a standalone react-native-chime library wrapping the Amazon Chime SDK using Turbo Module architecture targeting the React Native New Architecture; developed custom FFmpeg native modules for audio/video processing and resolved Android 15 16KB page-size alignment requirements.
- Telemetry & Observability: Built a CloudWatch-based client telemetry system as a self-hosted alternative to Sentry/Datadog to satisfy healthcare data-residency requirements.
- Push Notifications: Designed iOS and Android push notification pipelines including APNS payload structure, badge count management via Notification Service Extension, and VoIP flows using AWS Pinpoint/SNS.
- Internationalization: Integrated AWS Translate for multilingual NICU communication and shipped localized translations across French, Spanish, German, Dutch, and Portuguese with iOS .lproj support.
Senior React Native Developer - Bookme.pk - Pakistan
(2019-12 - 2023-01)
- Scale: Contributed to a platform with 1M+ active users, supporting high-traffic ticket booking and payment systems.
- Reliability: Architected and rolled out major new features with zero downtime or significant production regressions.
- Optimization: Optimized the core booking flow to ensure stability under heavy concurrent user loads.
- Cross-Platform Quality: Improved app performance and reliability across iOS and Android through careful native module integration and React Native bridge optimization.
Education
Bachelor of Computer Science - Computer Science - COMSATS University Lahore Campus (2015-09 - 2019-09)
