Miguel Kalaw
About
I'm a backend-focused full stack developer and software engineer. I help teams ship reliable APIs, automate workflows, and integrate AI-native features that save time and reduce support load.
- Built production systems used by 500+ daily commuters (Rush PH)
- Improved backend performance by 10× and cut response time by 90% through SQL/indexing and caching
- Won Agora Voice AI Hackathon — 1st Place (Mar 2026) building a voice AI support ticketing + routing system
I love turning ideas into working products—whether it's building backend services, automating tedious workflows, or shipping AI features that make operations smoother.
Tech Stack
Languages
Frameworks & Libraries
Tools & Environment
How I Help
- Backend & APIs: REST APIs, auth, integrations, webhooks, and reliable service design.
- Databases & SQL: PostgreSQL/Supabase schema design, indexing, query optimization, and RLS/security.
- AI-native features: voice workflows, agents/automation, and turning unstructured inputs into structured operations.
- Shipping: Dockerized deployments, performance-minded builds, and production-ready iteration.
Achievements
Agora Voice AI Hackathon - 1st Place
Agora (Mar 2026)
DLSU Hackercup 2025 - 1st Place
De La Salle University
Inventi Hackathon - 2nd Place
Inventi
Flutterflow Hackfest 2024 - 3rd Place
Flutterflow
Testimonials
Joshua Bumanlag
Senior iOS Engineer at ING Hubs | Creator of Rush PH
"Miguel is an outstanding developer who consistently delivers high-quality code. His ability to solve complex problems is impressive."
EJ Gungon
Senior Developer at Springboard Philippines
"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."
Experience
Full Stack Developer
Rush PH
Software Development Intern
Springboard Philippines
Software Development Intern
University of the City of Manila (ICT Office)
Projects
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%
Hackathons
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
Education
Open for Work
Open to full-time or contract roles. I can help with backend APIs, SQL/Postgres optimization, and AI-native features (agents/automation/voice workflows).
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