Founder & Engineer at Opencat Devs
Building production-ready, scalable, and open-source distributed systems.

I'm a software engineer specializing in real-time infrastructure, distributed systems, and high-performance backends. I focus on building systems that are production-ready from day one—not just proofs of concept.

type Engineer struct {
    Focus      []string{"Real-time Systems", "Backend Infrastructure", "Distributed Apps"}
    Philosophy string("Production-first, architecture-driven, performance-conscious")
    OpenSource bool(true)
}

• 💻 Full-stack & systems engineer with production deployment experience
• 🌍 Open-source advocate building tools for the community
• 🚀 Passionate about clean architecture, scalability, and observability
• 🧠 Designing systems that handle real-world load and complexity

Custom Chat Server (Go)

• Designed for 10K+ concurrent connections
• Stable long-lived WebSocket connections
• Production-hardened with proper error handling, reconnection logic, and monitoring

Multi-Language Signaling Servers

• JavaScript/TypeScript (Node.js + Socket.IO) for rapid development
• Rust implementation for performance-critical deployments
• Used for WebRTC call setup, peer coordination, and real-time messaging

Additional Real-Time Tech

• WebSocket & Socket.IO protocols
• Kafka for event streaming
• FRP/Tunneling for secure remote access

Go-Based Chat Server

• Production-grade architecture with proper connection pooling
• Handles thousands of concurrent users with sub-100ms latency
• Built-in observability with metrics and structured logging

WebRTC Signaling Servers

• JavaScript implementation: Rapid prototyping, easy deployment
• Rust implementation: 40% lower latency, minimal resource usage
• Battle-tested in production video calling applications

Image & Metadata Pipeline

• HDFS-backed storage for millions of images
• Real-time bounding box predictions with ML integration
• Geo-location aware datasets with spatial indexing
• Designed for terabyte-scale data processing

Student Management Platform

• Role-based access control (RBAC) with JWT authentication
• Separate dashboards for teachers, students, and administrators
• RESTful APIs with comprehensive Swagger documentation
• PostgreSQL with optimized query patterns for sub-second response times

I build software guided by these principles:

🎯 Production-First
   └─ Every line of code should be deployable to real users

🧩 Clean Architecture
   └─ Maintainable, testable, and understandable by others

⚡ Performance Matters
   └─ Measure everything, optimize what counts

🌍 Open Source
   └─ Share knowledge, build in public, lift others up

🔒 Security by Design
   └─ Authentication, authorization, and encryption from day one

• 🔨 Building next-generation real-time collaboration tools
• 🚀 Contributing to open-source distributed systems
• 📚 Exploring Rust for system-level performance optimization
• 🌐 Scaling WebSocket infrastructure for 100K+ concurrent users

• 🔗 Current Account: @brian-Lab-0
• 📚 Archive & History: @brianlangay4

I'm always interested in collaborating on:

• Real-time systems and WebSocket infrastructure
• Distributed backends with high availability requirements
• Open-source projects that solve real problems
• Performance optimization challenges

Found something interesting? Feel free to ⭐ star repos, 🍴 fork for your own use, or 📝 open an issue to discuss improvements.