MIGUEL
KALAW
Backend-focused software engineer and builder. I engineer reliable APIs, optimize complex database workloads, and integrate AI-native automation that transforms operational efficiency and saves engineering hours.
How I Deliver Value
Backend & APIs
RESTful services, secure auth pipelines, webhook handlers, and high-concurrency architectures designed for sub-100ms latency.
Databases & SQL
Relational schema design, PostgreSQL query tuning, RLS hardening, index optimization, and multi-tier KV cache strategies.
AI-Native Systems
Voice AI pipelines, OCR document parsing, real-time agent ticket routing, and transforming raw inputs into structured data.
Full Stack Shipping
Responsive UI integration, WebRTC real-time media, Dockerized deployments, and production-ready system monitoring.
Engineering History
Full Stack Developer
Rush PH
Optimized PostgreSQL backend performance by 10×, designed 7-tier Supabase KV caching reducing response times by 90% (500ms → 50ms), and scaled Facebook Messenger bot serving 500+ daily commuters.
Software Development Intern
Springboard Philippines
Developed dynamic CMS-integrated blog systems and internal full stack tools for enterprise clients, boosting SEO and load performance.
Software Development Intern
University of the City of Manila (ICT Office)
Revamped scholarship platforms for 1,000+ applicants and built IT help-desk services reducing ticket turnaround by 40%.
Selected Projects
Vaultr — Bookmark Manager
• Shipped a private, local-first iPhone and iPad app for saving links, images, screenshots, notes, and useful content from anywhere.
• Built on-device OCR and smart image descriptions so saved content stays easy to search without sending personal data to the cloud.
• Added encrypted backups with a user-controlled recovery key—no account, cloud sync, or tracking required.
HariChat
• An Omegle-style anonymous chat platform built with React, TanStack Router, Convex, Better-Auth, and WebRTC for real-time video/voice calls.
• Currently has 100+ active users with university email verification.
• Features real-time matching, moderated chat rooms, and an admin dashboard for user management.
Rush PH
• Enabled 500+ daily Metro Manila commuters to access real-time train/bus arrival information without mobile data costs by developing a production Messenger Bot using Express.js, Webhooks and Facebook Messenger API.
• Optimized PostgreSQL/Supabase backend performance by 10x and patched 4 security vulnerabilities by refactoring RLS policies and implementing database indexing strategies across 8 tables.
• Designed and deployed a 7-tier data priority caching system using Supabase KV that reduced API response times by 90% (from 500ms to 50ms) while ensuring graceful degradation through stale cache fallbacks.
Duty Free Blog System
Dynamic blog system integrated with a backend CMS and React frontend, improving SEO performance and engagement by 25%
University of the City of Manila Scholarship System
Revamped scholarship application platform for 1,000+ applicants, reducing processing time by 50% through streamlined workflows
University of the City of Manila Help Desk System
Streamlined technical support for 20+ university offices by building a help-desk web application, tracking 100+ monthly IT requests and reducing average response time by 40%
Hackathon Victories & Builds
Agora Voice AI Hackathon — 1st Place
Bootstrapped an intelligent inbound voice call center solution that turns calls into structured support tickets, and routes them to the best-fit human agent.
Messenger POS with OCR
Built a POS system inside Messenger with OCR receipt scanning and analytics dashboard using Express.js, Tesseract.js, and Messenger API
Tenant Property Manager
Facebook Messenger-based property management system with Express.js admin dashboard using WebSockets for real-time updates
Gamified Productivity RPG
Transform task management into RPG adventure for procrastinators using FlutterFlow, gamifying productivity with character progression
Technical Stack & Tools
JavaScript 
TypeScript 
Python 
SQL 
PostgreSQL 
React 
Expo 
Express.js 
FastAPI 
Tailwind 
Supabase 
Git 
GitHub 
Linux 
Docker 
VS Code Recommendations & References
"Miguel is an outstanding developer who consistently delivers high-quality code. His ability to solve complex problems is impressive."
Joshua Bumanlag
Senior iOS Engineer at ING Hubs | Creator of Rush PH
"Miguel’s passion for development is inspiring. He approaches every challenge with confidence and a hunger to learn. His AI know-how has brought fresh insight and power to every project we’ve worked on together and a true asset to any team."
EJ Gungon
Senior Developer at Springboard Philippines
Hackathons & Event Highlights
Miguel Kalaw and team winning 1st Place at DLSU Hackercup 2025
Presenting at Flutterflow Hackfest 2024
Collaboration moment at KMC Hackathon
Springboard Hackit competition participation
Code Break experience
Inventi Hackathon project presentation
FlutterFlow community event
Team photo at Inventi Hackathon
Miguel Kalaw and team winning 1st Place at DLSU Hackercup 2025
Presenting at Flutterflow Hackfest 2024
Collaboration moment at KMC Hackathon
Springboard Hackit competition participation
Code Break experience
Inventi Hackathon project presentation
FlutterFlow community event
Team photo at Inventi Hackathon