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Problem: Small businesses need affordable, multi-tenant SaaS tools to manage operations across users and roles without enterprise pricing.

\n

Architecture: Full-stack SaaS platform with multi-tenant architecture, JWT auth, role-based access control, admin dashboards, and REST APIs deployed on AWS EC2 + RDS.

\n

Key Decision: Used PostgreSQL over MongoDB for relational integrity in tenant isolation. Implemented RBAC for scalable permission management across user hierarchies.

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Impact: Serving 100+ active users handling real production workloads.

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Problem: Retail investors need real-time stock insights without the complexity of full trading platforms.

\n

Architecture: Real-time stock insights platform with secure JWT authentication, deployed on VPS with Nginx reverse proxy and SSL termination. PostgreSQL for reliable financial data storage.

\n

Key Decision: Chose VPS + Nginx over serverless for persistent connections required for real-time data streaming. PostgreSQL ensures ACID-compliant financial data integrity.

\n

Impact: Handling 100+ API requests/day with sub-second response times in production.

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Problem: Logistics companies need intelligent driver assignment and live delivery tracking to optimize routes and reduce operational costs.

\n

Architecture: Full-stack logistics platform with intelligent driver assignment algorithm, live GPS tracking, and role-based dashboards for admins, drivers, and customers. Built with TypeScript end-to-end.

\n

Key Decision: Used MongoDB with geospatial indexing for location-based driver matching. Implemented real-time tracking using WebSocket connections for live delivery updates.

\n

Impact: Improved delivery efficiency by 25% through automated driver-delivery matching.

"}},{"node":{"frontmatter":{"title":"AI Buddy","covers":[{"childImageSharp":{"gatsbyImageData":{"layout":"constrained","placeholder":{"fallback":"data:image/jpeg;base64,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"},"images":{"fallback":{"src":"/static/9cef12703d8cc33c05f757dfd6c82f0a/2b365/cover.jpg","srcSet":"/static/9cef12703d8cc33c05f757dfd6c82f0a/1849b/cover.jpg 175w,\n/static/9cef12703d8cc33c05f757dfd6c82f0a/3f5de/cover.jpg 350w,\n/static/9cef12703d8cc33c05f757dfd6c82f0a/2b365/cover.jpg 700w","sizes":"(min-width: 700px) 700px, 100vw"},"sources":[{"srcSet":"/static/9cef12703d8cc33c05f757dfd6c82f0a/5d873/cover.webp 175w,\n/static/9cef12703d8cc33c05f757dfd6c82f0a/26a00/cover.webp 350w,\n/static/9cef12703d8cc33c05f757dfd6c82f0a/f23f0/cover.webp 700w","type":"image/webp","sizes":"(min-width: 700px) 700px, 100vw"}]},"width":700,"height":394}}}],"tech":["Python","OpenCV","PostgreSQL","Docker"],"github":"https://github.com/YashSharma2129","external":null},"html":"

Problem: Home workout users have no way to verify exercise form or count reps accurately without a personal trainer.

\n

Architecture: AI-powered fitness assistant using OpenCV for real-time posture detection and rep counting. Containerized with Docker for consistent deployment. PostgreSQL for structured workout history and analytics.

\n

Key Decision: Chose OpenCV over TensorFlow Lite for lower latency in real-time video processing. Dockerized the entire stack for reproducible builds across environments.

\n

Impact: Achieved 90%+ posture detection accuracy with real-time feedback during exercises.

"}}]}}}