Your system is slow, fragile, or failing under load — and the team that built it has moved on. I step in, read the architecture, find the bottleneck, and fix it.
I am a Principal Software Engineer (Engineer of the Year 2023) with 6+ years building production systems that handle millions of requests. I have shipped real-time infrastructure (WebSocket live updates, SMS via Twilio, live route tracking), optimized routing algorithms saving a client approximately $300,000 per year, and built an availability-sync system saving another approximately $100,000-200,000 per year. I re-architected a multi-OTA booking engine (GetYourGuide, Viator, Airbnb, Rezdy) cutting response times from 20-30 seconds to under 2 seconds and raising release velocity by approximately 30% via CI/CD.
What I build:
- Production APIs (REST, WebSocket, webhooks) in Node.js or Python
- Real-time features: live data, messaging, notifications (Twilio, SendGrid, Pusher)
- Performance optimization: latency reduction, database tuning, caching, load testing
- Full-stack applications: Next.js front-end + Node.js or Python back-end
- CI/CD pipelines, Docker, and deployment on AWS, Vercel, or your infrastructure
Stack: Node.js, Python (FastAPI/Django), Next.js/React, PostgreSQL/MySQL, Redis, Docker, AWS.
Send me your current architecture (even informally) and the problem you are solving. I will give you an honest assessment of what is wrong and what it will take to fix it. Milestone-based via SafePay.