Projects

6 production systems, each with the problem statement, architectural decisions, trade-offs, metrics, and an interview-mode deep-dive.

NexusOne.coach
LMS / Coaching2024Shipped

NexusOne.coach

LMS, Live Classes & Coaching Platform

  • Courses, live Zoom classes, cohort management, automated assessments
  • RBAC permission controls with Socket.IO-driven attendance tracking
  • Stripe Checkout, Subscriptions & Connect for instructor payouts
  • Automated live-class reminders via Zoom SDK, Google Calendar and Firebase
Zoom SDK
Live Classes
Checkout / Sub / Connect
Billing
Socket.IO
Attendance
RBAC
Access Control
ReactNode.jsMySQLSocket.ioStripeZoom SDK+3
View case study
Seltrix
SaaS Platform2024Shipped

Seltrix

Multi-Tenant Website Builder & Template Commerce Platform

  • Multi-tenant SaaS website builder with custom-domain publishing
  • Template marketplace for buying and selling reusable site templates
  • Dynamic public tenant rendering resolves tenant identity per request
Next.jsNode.jsExpressMySQL+4
View case study
ZPONZ
Marketplace / Wallet2024Shipped

ZPONZ

Expert Marketplace, Wallet & CMS Platform

  • Drag-and-drop page builder with master components and ordered schema sections
  • Stripe-backed wallet: deposits, withdrawals, escrow, scheduled expert payouts
  • Expert monetization marketplace: landing site, ad dashboard, admin CMS
ReactNode.jsMySQLSocket.io+5
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GovPass
Government / Compliance2024Shipped

GovPass

Government Visa Application Management System

  • Replaced paper workflow: 30% error rate → < 2%
  • Immutable event-sourced audit log (7-year retention)
  • 15+ officer role tiers with RBAC middleware
ReactNode.jsExpressMySQL+7
View case study
Appolo Smart Test
Serverless / EdTech2025Live

Appolo Smart Test

Enterprise Exam Evaluation & Serverless Processing

  • Serverless PDF processing pipeline, 90% less manual grading effort
  • Cursor-based MongoDB pagination: 60% faster API response times
  • TUS resumable uploads for 500MB+ video files, XSS/injection hardened
AWS LambdaSQSS3MongoDB+8
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AdUnity
AI / CRM2023Shipped

AdUnity

Multi-Tenant CRM & AI Call Analytics Platform

  • Real-estate CRM: lead tracking, site-visit planning, tenant-scoped workflows
  • Click-to-call with AI transcription and sentiment analysis via AssemblyAI
  • Real-time incoming-call alerts and duplicate lead detection
ReactNode.jsMySQLSocket.io+3
View case study

All projects are from real production environments. Company names omitted per NDA.