Production systems Md Abdur Razzak Rakib has built or contributed to, with the problem, approach, and technologies used.
Dating & Social Platform for STI Community
A privacy-first modular monolithic backend API and real-time social engine for individuals living with STI conditions (HPV, HIV, HSV-1/2)—enabling match discovery via swipes, post feeds, winks, blogs, events, first-date ideas, and Stripe-powered premium messaging and private albums.
Flushes thousands of buffered social interactions per minute with sub-20ms database queries
Enterprise Field-Service & Operations Platform
A robust backend API and real-time operations engine for landscaping and field-service enterprises—handling estimates, automated invoicing, project scheduling, crew attendance, payroll, equipment dispatch, and Stripe one Time payment.
Processes async background jobs & real-time crew dispatches with sub-20ms database queries
On-Demand Beauty Service Platform
A location-based service marketplace connecting users with nearby beauty professionals, similar to an Uber-style booking system for salon and home services.
Handled real-time booking workflows with low-latency updates
Car Rental Platform in USA
A rental app that allows agencies to list cars for rent and users to rent them with real-time booking and payment. Includes in-app messaging between agencies and renters.
Handled multiple concurrent rentals with instant booking confirmation
B2C Marketplace in Dubai
A Dubai-based e-commerce platform where users can buy and sell products. The platform supports in-app messaging, notifications, and real-time booking for products or services.
Scalable platform with real-time communication and transactions
Real Estate Agency Platform
A subscription-based real estate platform that allows users to discover and browse properties. Users receive notifications from admins, use advanced filters, and access premium listings after subscribing.
Thousands of property views per month with real-time updates
Service Marketplace Platform
A platform where users can provide and receive services. Supports subscription-based access, one-time payments, and real-time communication.
Facilitated seamless service transactions with real-time communication