I'm a full-stack developer who loves building real-world systems that solve actual problems. My sweet spot is backend architecture , databases, APIs, authentication, and making things scale gracefully. I don't just write code; I build polished, production-ready applications.

• 🔨 Built 4 production-grade projects with 90+ APIs, multi-tenant architecture, and enterprise security
• 🧠 Deep expertise in database design, clean architecture, and scalable system patterns
• 🎯 Currently learning Go, Spring Boot, and distributed systems
• 💡 I believe in shipping real products, not just tutorials

• 🚀 Fuze — Extending this to other platforms like youtube and instagram
• 📚 Building microservices architecture in Go for learning distributed systems
• 🧪 Exploring Spring Boot and enterprise Java patterns
• 🤝Contributing to Open-Source Repositories like Appwrite , Vitest

Problem: Educational institutions struggle with certificate fraud, manual verification processes, and smooth placement process.

Solution: A Next-generation SaaS platform that automates certificate lifecycle management and college placements .

Tech Stack: Next.js TypeScript Supabase PostgreSQL Gemini AI W3C Standards

Key Features:

• 🤖 AI-powered certificate extraction using Gemini + Tesseract OCR with 95%+ accuracy
• 🔐 W3C Verifiable Credentials with Ed25519 cryptographic signatures
• 🏢 Multi-tenant Row-Level Security ensuring complete data isolation
• ⚡ 90+ optimized REST APIs with real-time updates and caching
• 📊 Admin dashboard with analytics and bulk operations

Impact: Reduces verification time from days to seconds, eliminates certificate fraud

Problem: Knowledge workers lose 30% of productivity searching for information scattered across platforms.

Solution: A unified knowledge hub that connects information across your digital workspace.

Tech Stack: Flask React PostgreSQL Vector Search Knowledge Graphs

Key Features:

• 🔍 Semantic search that understands context, not just keywords
• 🕸️ Automatic knowledge graph linking related concepts across projects
• 📚 Multi-platform capture (LinkedIn, Chrome, mobile, any URL)
• 🎯 Context-aware recommendations powered by ML
• 🔗 Smart project-knowledge associations

Impact: 40% faster information retrieval, reduced context switching

Problem: Teams need reliable, safe database migrations across multiple environments and database types.

Solution: A TypeScript-native migration framework with enterprise-grade safety features.

Tech Stack: TypeScript PostgreSQL MySQL SQLite CLI

Key Features:

• 🗄️ Multi-database support (PostgreSQL, MySQL/MariaDB, SQLite)
• 🔒 Transaction safety with automatic rollback on failure
• 🔐 Migration locking prevents concurrent execution conflicts
• ✅ Checksum verification ensures migration integrity
• 📊 Dependency resolution with topological sorting
• 🛠️ Rich CLI with dry-run, status, and environment-specific configs

Impact: Zero-downtime migrations, 100% rollback success rate

Problem: Understanding how web servers really work under the hood.

Solution: A fully-featured HTTP/1.1 server built from raw sockets—no frameworks.

Tech Stack: Python Threading Prometheus Low-level Networking

Key Features:

• 🌐 Complete HTTP/1.1 implementation with persistent connections
• ⚡ Multi-threaded architecture handling 500+ requests/second
• 🔒 Enterprise security (path traversal protection, rate limiting, CORS)
• 📊 Production observability (Prometheus metrics, structured logging)
• 🛡️ Real-time security dashboard and audit trails
• 🔐 Thread pool management with bounded concurrency

Impact: Learned TCP/IP internals, threading models, and production concerns

✅ Backend Architecture — Database design, API development, authentication, security
✅ Full-Stack Development — React/Next.js frontend + Node/Flask/FastAPI backend
✅ Production Mindset — Clean code, testing, documentation, scalability from day one
✅ Problem Solver — I build solutions, not just features
✅ Fast Learner — Picked up TypeScript, Go, and system design patterns independently

I'm always interested in:

• 💼 Backend/Full-stack opportunities where I can build impactful products
• 🚀 Open source collaboration on tools, frameworks, or developer productivity
• 💡 Technical discussions about databases, system design, or architecture patterns

📧 Email: [email protected]
💼 LinkedIn: Ujjwal Jain
🐙 GitHub: @Ujjwaljain16