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My Expertise

I specialize in building scalable backend systems and polished web products. Here is a deep dive into the specific domains and technologies I work with.

Full Stack Engineering

End-to-end product delivery with React, Next.js, Node.js, and polished API contracts that teams can build on.

ReactNext.jsTypeScriptREST APIs

Backend & Microservices

Scalable service architectures with NestJS, RabbitMQ, Redis, and PostgreSQL for high-throughput domains.

NestJSRabbitMQRedisDocker

SaaS Platform Design

Multi-tenant backends with RBAC, subscription billing, BullMQ job queues, and real-time WebSocket flows.

Multi-tenantRBACBullMQWebSockets

Travel & Booking Systems

Flight booking engines, halal travel APIs, idempotent bookings, vendor integrations, and queue-based reconciliation.

Airline APIsIdempotencyCachingMongoDB

Need proof of work?

The strongest examples are in the project section: booking APIs, SaaS backends, realtime systems, and microservice workflows.

View projects

Available for collaboration

Have a product idea, dashboard, or API that needs a steady builder?

I help teams ship reliable full-stack products with thoughtful interfaces and maintainable systems.

Book a Call

Say hello

mamuncse17@gmail.com+880 1521-322300

Dhaka, Bangladesh

Built with

Next.jsTypeScriptTailwind CSSFramer Motion

© 2026 Mamunur Rashid. All rights reserved.

Designed and built in Dhaka, Bangladesh.