Projects
Selected enterprise products and platforms delivered as Lead Engineer / Tech Lead / Architect / CTO.
Homnifi — Crypto Mining & MLM (Network-Marketing) Platform
[1M+ Users] homnifi.com ↗
1M+ Users
High-Traffic
500K+ Pings/Sec
Crypto Mining Machines
Genealogy & Commissions
Wallets & Payouts
Role: Lead Engineer & Architect. Large-scale platform combining crypto mining machine setup & mining operations management with a full MLM (network-marketing) engine — scaled to 1M+ users with high concurrent traffic. Delivered mining-machine onboarding & configuration, real-time mining status & rewards tracking, binary/matrix genealogy trees, multi-level commission engine, crypto e-wallets and payout processing, KYC integration, member dashboards with live downline & mining updates, referral/rank-progression logic, and a full admin control panel. Used RabbitMQ to process up to 500,000+ mining-machine status/heartbeat pings per second and TimescaleDB for time-series storage of mining & rewards history. Engineered for horizontal scalability with load-balanced application servers, caching, queue workers, and database optimization to sustain production-scale load.
React, Next.js, Node.js, Express, PostgreSQL, TimescaleDB, Redis, Apache Kafka, RabbitMQ, Socket.io, Web3.js, Crypto Wallet APIs, Queue Workers, AWS, Docker
$1M+ Revenue in 6 Months
Jewellery ERP
iOS & Android Apps
E-Commerce Web
Gold Buy / Sell
Multi-Currency
Multi-Wallet & Payouts
Live Gold Rates
Gold Installment Purchase
Auto-Debit Installments
Role: Lead Engineer & Architect. Full digital suite for Prime Jewellery — customer-facing e-commerce website, native iOS & Android applications (Flutter), and a complete jewellery ERP covering inventory, purity & karat tracking, making-charge calculations, branch & staff management, sales, and accounting. Includes a full gold buy/sell trading module, multi-currency support, a multi-wallet system with payout processing, and a core gold installment purchase system — letting customers buy gold in scheduled installments with automated auto-debit collection — all backed by live gold-rate integration across web and apps. Crossed $1M+ in transactions within 6 months of launch.
React, Next.js, Flutter, Dart, Node.js, Express, PostgreSQL, Redis, Socket.io, AWS, Multi-Currency FX APIs, Live Gold Rate APIs
Effora — Employee & Time Tracking System
Employee Tracking
Time & Attendance
Appointment & Delivery Tracking
Role: Lead Engineer & Architect. Employee and time tracking system for monitoring attendance and working hours, built with Node.js, React, and PostgreSQL, using Socket.io for real-time updates. Also includes an appointment & delivery tracking module for live location and status tracking of field staff and delivery personnel.
React, Node.js, Express, PostgreSQL, TimescaleDB, Elasticsearch, Socket.io
Multi-Currency
Wallet Integration
Merchant Dashboard
REST APIs & Webhooks
Role: Lead Engineer & Architect. Multi-currency cryptocurrency payment processing gateway with wallet integration, real-time exchange rate conversion, blockchain transaction confirmation, merchant dashboard, settlement reporting, and developer-friendly REST APIs & webhooks. Live and processing transactions for merchant clients.
Node.js, Express, Web3.js, Ethers.js, React, PostgreSQL, Redis, Apache Kafka, Socket.io, Blockchain APIs
Real-Time Price Feed
Metals & Crypto Data
Live API
Role: Lead Engineer & Architect. Real-time price feed API delivering live metal (gold, silver) and cryptocurrency pricing data, combining a Python-based data pipeline with a Node.js/Express API layer, Redis caching, and Socket.io for real-time price streaming to clients.
Node.js, Express, Python, Redis, PostgreSQL, Socket.io
ApexKYC — KYC & Identity Verification Platform
[LIVE • Subscription Revenue] apexkyc.com ↗
Subscription Revenue
AI Facial Recognition
OCR Document Reading
Multi-Platform SDK
Live in Production
Role: Lead Engineer. Cloud-based KYC verification platform powered by AI-driven facial recognition (face matching, liveness/anti-spoofing) and intelligent document reading (OCR + MRZ parsing for passports, national IDs, and driving licenses). Shipped with a full multi-platform developer ecosystem —
@apexkyc/sdk for JavaScript/TypeScript, a React component library, and
apex_kyc Flutter SDK for native iOS & Android.
Now generating recurring revenue through tiered subscription plans with per-verification pricing and developer-tier billing.
React, Flutter, Node.js, Express, TypeScript, Dart, MongoDB, Socket.io, AWS S3, AWS Rekognition, OpenCV, Tesseract OCR, MRZ Parser, Stripe
Quicker — Car Rental SaaS Platform
Booking Engine
iOS & Android Apps
Wallets & Payouts
Fleet & Pricing Management
Role: Lead Engineer. End-to-end car rental SaaS — customer web portal, native iOS & Android applications, vehicle catalog, real-time availability, online booking, payment integration, in-app wallets & payout system for owners/drivers, fleet management, dynamic pricing, and operator dashboards.
React, React Native, Node.js, Express, PostgreSQL, Socket.io, Stripe, Google Maps SDK
Enterprise HR Management System
Employee Lifecycle
Payroll
iOS & Android Apps
Attendance & Leave
Role: Lead Engineer. Complete HR platform covering employee onboarding, attendance, leave management, payroll, performance reviews, and document management — paired with companion native iOS & Android apps for self-service requests, geo-tagged attendance, and push notifications.
React, React Native, Node.js, Express, PostgreSQL, Socket.io, JWT, Firebase Push Notifications
WhatsApp Marketing Platform (Unofficial API) [LIVE]
Bulk Broadcasts
Multi-Account Sessions
Delivery Analytics
Role: Lead Engineer. SaaS platform for bulk WhatsApp marketing campaigns — scheduled broadcasts, contact list management, message templates, multi-account sessions, and delivery analytics. Live in production with paying users.
Node.js, WhatsApp Web API, React, Redis, PostgreSQL, Socket.io, Queue Workers
Halyen — No-Code Website Builder [IN DEVELOPMENT]
Drag-and-Drop Editor
One-Click Publishing
Custom Domains
Role: Lead Engineer. SaaS no-code website builder enabling anyone to design, customize, and publish a fully functional website in under a minute. Includes a drag-and-drop visual editor, pre-built templates, responsive layouts, custom domains, one-click publishing, SEO controls, and a hosted CMS.
Next.js, React, Node.js, GrapesJS, Tailwind CSS, PostgreSQL, Socket.io, AWS S3, CloudFront, Docker
Karnaphuli Jewellery Trading LLC — End-to-End Jewellery & Gold ERP Suite
Gold ERP
Gold Trading System
iOS & Android Apps
E-Commerce Web
Role: Lead Engineer & Architect. Full digital ecosystem for Karnaphuli Jewellery Trading LLC — customer-facing e-commerce website, native iOS & Android applications (Flutter) published on Apple App Store and Google Play, a real-time gold trading system, and a complete jewellery & gold ERP covering inventory, purity tracking, making-charge calculations, branch management, and accounting.
React, Next.js, Flutter, Dart, Node.js, Express, PostgreSQL, Redis, Socket.io, AWS, Live Gold Rate APIs
Multi-Tenant E-Commerce SaaS Platform
Multi-Tenant SaaS
Storefront + Admin
Payments & Inventory
Role: Lead Engineer. Full e-commerce SaaS allowing merchants to spin up branded online stores with product catalog, cart & checkout, payment processing, inventory & order management, discount engine, and multi-vendor capabilities.
Next.js, React, Node.js, Express, PostgreSQL, Redis, Stripe, AWS S3, Socket.io
QuickDropX — Dropshipping Automation Platform
Dropshipping Automation
Supplier Sync
Order Automation
Role: Lead Engineer. Dropshipping automation platform enabling merchants to sync product catalogs and inventory from suppliers, automate order routing and fulfillment, and manage multi-store operations from a central dashboard.
React, Next.js, Node.js, Express, PostgreSQL, Redis, Socket.io, AWS
Blpro — MLM & Member Network Platform
MLM Engine
Commission Plans
Wallets & Payouts
Member Portal
Custom UI
Role: Lead Engineer & Architect. Independent MLM platform with its own product flow, branding, and UI — featuring a configurable commission engine, member onboarding, downline genealogy visualization, e-wallet and payout management, ranks/incentives, and an admin dashboard for plan and payout configuration.
React, Next.js, Node.js, Express, PostgreSQL, Redis, Socket.io, Queue Workers, AWS
AiFarm — AI / Farming-Themed MLM Platform
MLM Engine
Gamified Earning
Wallets & Payouts
Custom Theme
Role: Lead Engineer & Architect. Distinct MLM platform built around an AI / farming-themed earning model with its own design language and product mechanics — including gamified earning flows, multi-level referral & commission logic, e-wallet, payouts, KYC, and a separate admin control panel.
React, Next.js, Node.js, Express, PostgreSQL, Redis, Socket.io, Queue Workers, AWS
Skills
Languages:
JavaScript, TypeScript, Python, PHP, SQL, Solidity, HTML5, CSS3
Frontend:
React, Next.js, Redux, Vue.js, Tailwind CSS, Material UI, SASS
Backend, APIs & Real-Time:
Node.js, Express, NestJS, REST APIs, GraphQL, gRPC, Socket.io (across all production projects), WebSocket, Live Dashboards, Pub/Sub, Redis Adapter for Horizontal Scaling
Mobile:
React Native, Flutter, Expo, Android & iOS deployment
Databases:
PostgreSQL (primary), MongoDB, MySQL, Redis, Firebase, Database Design, Query Optimization, Indexing, Migrations (Prisma / TypeORM / Sequelize)
Cloud, DevOps & Architecture:
AWS (EC2, S3, Lambda), Docker, Nginx, Load Balancing, Linux (Ubuntu), CI/CD, Cloudflare, Microservices Architecture, Apache Kafka, Event-Driven Architecture, Domain-Driven Design (DDD), System Design, Agile/Scrum
Algorithmic & Automated Trading:
Algorithmic Trading Systems, Automated Trading Bots, Custom Indicator Development, Technical Analysis (RSI, MACD, Bollinger Bands, Moving Averages), Pine Script (TradingView), MQL4 / MQL5 (MetaTrader), TA-Lib, Backtesting Frameworks, Strategy Optimization, Real-Time Market Data (WebSocket), Exchange APIs (Binance, Bybit, Forex brokers), CCXT, Risk Management Logic — across Forex, Stocks, Crypto & Currency markets