John Lappay
I’m John Lappay, a Full Stack Developer and Mobile/Team Lead based in Caloocan City, Philippines.
About
I’m John Lappay, a Full Stack Developer and Mobile/Team Lead based in Caloocan City, Philippines. I build production-ready applications end-to-end—designing scalable services and delivering smooth mobile experiences using Flutter, along with strong back-end engineering with Node.js and Postgres/Supabase. I also enjoy turning real-world problems into usable tools, such as computer-vision pose assessment workflows and developer-friendly SDKs that help teams integrate faster.
In my recent roles, I’ve led cross-functional teams, shipped mobile releases to both App Store and Google Play, and implemented CI/CD and containerized deployments. I’ve also worked deeply on payment systems, authentication, event-driven architectures (Kafka), and modern infrastructure with Docker, Cloudflare, and object storage. I like building reusable components—whether that’s Flutter packages or NPM SDKs—so products remain consistent and development stays efficient as features grow.
- 3 years' experience
- Joined September 2026
Industry experience
- Software & Internet
- Education
- Gaming
- Media & Entertainment
Work experience
Led a four-member development team, managing timelines, sprint planning, task distribution, and technical coordination. Collaborated on system architecture and entity-relationship diagrams (ERD) to guide application structure and data relationships. Set up and managed deployment infrastructure including Dockerized services, SSL certificates with Certbot, and CI/CD pipelines. Integrated Supabase authentication and session management with real-time listeners, and supported SMTP services; contributed to shared inbox, ticketing, email processing, search, and performance improvements.
Built a cross-platform HRIS mobile app for iOS and Android using Flutter (timekeeping, leave management, task management, and payroll integration) to reduce manual employee workflows. Led a four-member cross-functional team for a social media platform, contributing to microservices architecture, Kafka-based event workflows, S3 storage, video transcoding, and containerized deployments for scalable content and notifications. Developed a Flutter-based Android POS terminal with native Kotlin integrations for EMV card reader/printer SDKs and transaction APIs. Created and published reusable Flutter packages on pub.dev (UI components, API/repository abstractions, secure storage, Riverpod service layers, and project scaffolding) to improve consistency and reduce repetitive setup. Managed iOS/Android release operations (App Store, Google Play) and implemented Fastlane-based CI/CD. Built a web physical movement assessment platform using TensorFlow.js and MoveNet for real-time pose detection, key
Education
Certifications and awards
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