I craft precise, performant digital systems — from microservices to immersive frontends. I believe the best code is invisible.
Engineer with 6+ years of experience designing and building scalable, high-performance applications. I specialize in distributed systems, cloud architecture, and crafting intuitive user interfaces. Proficient in JavaScript, TypeScript, React, Node.js, Docker, and AWS, I focus on delivering clean, maintainable solutions that balance performance with user experience.
From scaling APIs to billions of requests to building products used by millions, I’ve worked on systems that operate at real-world scale. Across PayPal, Tila Ecommerce, and Position2 (Arena), I’ve collaborated with global teams to deliver reliable, high-performance solutions.
Beyond building applications, I’ve focused on modifying open-source code to meet evolving product requirements. At Position2 (Arena), this involved customizing platforms like sim.ai to ensure scalability and real-world reliability.
A real-time analytics engine processing 4B+ events/day. Built a distributed pipeline with sub-100ms query latency and a live dashboard used by 200+ enterprise clients.
CLI tool for zero-downtime deployments with automatic rollback, health checks, and Slack integration. 8k GitHub stars.
Multi-tenant authentication API with passkeys, SSO, and fraud detection. Handles 50M logins/month.
Cross-platform performance monitoring app for mobile engineering teams with AI-powered anomaly detection.
Automatic TypeScript type generation from REST APIs, GraphQL, and OpenAPI specs. 2k weekly downloads.
Five custom SVG logos designed from scratch — each reflecting the personality and tech of its product. Icon marks, wordmarks, and combination variants.
Whether you have a project in mind, a role to fill, or just want to talk systems design — my inbox is always open.
mcdhage98@gmail.com