Full-stack Mobile & Web Developer 📍 Toronto, Canada

I build scalable, production-ready mobile and web applications with a strong focus on performance, developer experience, and real-world reliability. My background spans iOS, Android, backend services, and DevOps, with hands-on experience shipping apps used in real businesses.

Languages & Frameworks

• TypeScript / JavaScript
• Swift (iOS, watchOS, WKWebView)
• Python
• React / React Native
• Node.js

Mobile

• iOS (Swift, UIKit, SwiftUI)
• React Native (Expo)
• OTA update systems
• Push notifications (APNs, Android)

Backend & Infra

• Node.js services
• RabbitMQ (event-driven systems)
• REST & WebSocket APIs
• Docker & CI/CD pipelines
• Cloud deployments

Contributions to a React Native over-the-air update system, enabling app updates without store resubmission. Focused on edge-case reliability, including Android backup/restore scenarios.

• TypeScript
• Production-grade update handling
• Real-world mobile constraints

A Node.js push notification service using RabbitMQ as a message broker. Designed for scalable, async delivery of iOS push notifications via APNs.

• TypeScript
• Message queues
• Service-oriented architecture

A WKWebView wrapper for a browser-based flight simulator experience.

• Swift
• iOS WebView integrations
• Native ↔ Web communication

A Python client library for interacting with an async notification service.

• Python
• Clean API design
• Client-side reliability

• Active open-source contributor
• Consistent commits across public and private repositories
• Focused on bug fixes, edge cases, and production stability
• Pull requests with real-world impact

• Performance matters — users notice delays
• Frontend is the API for humans
• Systems should fail gracefully
• Good DevOps saves teams time
• Clean architecture beats clever hacks

• 📧 Email: MichaelSebsbe@gmail.com
• 💼 GitHub: github.com/MichaelSebsbe

Thanks for stopping by 👀 Always happy to collaborate or talk architecture.