Language
Language
Core programming languages for problem solving and product development.
01
- JS
- TS
- C
- C++
Available for opportunities
Backend Engineer Portfolio
Md Abdur Razzak
Backend Developer
Building
Architecting systems that scale. Solving problems that matter.
2+ years experience
Scalable backend systems
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About Me
I believe backend development is an exercise in empathy — for the systems that depend on your code, the teams who maintain it, and the users who never see it but always feel it.
I build the invisible infrastructure that powers great products. With 2+ years of crafting backend systems, I've learned that great software isn't just about making things work — it's about making them scale, perform, and survive production chaos. I obsess over distributed systems, database optimization, and clean API design. When I'm not building, I'm probably reading about system design or debugging something interesting.
about.ts
const developer = {
name: 'Md Abdur Razzak',
focus: 'Backend Systems',
strengths: [
'scalability',
'performance',
'system design',
],
available: true,
}
2+
Years Experience
15+
Projects Shipped
99.9%
Uptime Target
∞
Problems Solved
API-First Thinking
Every system starts with clear contracts. I design APIs that are intuitive, versioned, and abuse-resistant.
System Design
From database schemas to service boundaries, I think in systems — balancing simplicity with scalability.
Performance Obsessed
Milliseconds matter. I profile before optimizing, measure after, and never guess at bottlenecks.
Production Mindset
Software that can't survive real traffic isn't done. Observability, error handling, and graceful degradation are non-negotiable.
Skills
A fresh technical breakdown of my language, backend, and frontend stack.
Backend
Backend
API, queue, database, and infrastructure tools for scalable systems.
02
- Node
- Express
- Prisma
- MongoDB
- PostgreSQL
- RabbitMQ
- BullMQ
- Docker
- Nginx
Frontend
Frontend
Modern web UI stack focused on responsive and maintainable interfaces.
03
- NextJS
- ReactJS
- TailwindCSS
Projects
Production-grade projects tackling real backend challenges — not tutorials, not todos.
Marketplace
Ooh Ahh
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
Node.jsExpress.jsMongoDBRedis+2
Rental Services
SELE
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
Node.jsExpress.jsMongoDBSocket.io+2
Marketplace
Re-Wears
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
Node.jsExpress.jsMongoDBSocket.io+2
Real Estate
Project Finder
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
Node.jsExpress.jsMongoDBRedis+3
Marketplace
263ProLink
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
Node.jsExpress.jsMongoDBSocket.io+2
Experience
Two years of turning coffee into distributed systems.
Backend Developer
Spark Tech Agency
Architecting and maintaining scalable backend systems for B2B SaaS and B2C applications. Built a monorepo-based microservices architecture using Node.js, Express, and MongoDB. Improved API performance by ~40% through query optimization and Redis caching. Implemented background job processing with BullMQ, SMS and SMTP services, and containerized deployments using Docker with CI/CD pipelines.
Node.jsExpress.jsMongoDBRedisBullMQDockerCI/CDMonorepo
Frontend Developer Intern
FKR IT
Worked primarily on frontend development using React and Next.js, building responsive and user-friendly interfaces. Collaborated with backend teams to integrate RESTful APIs and contributed to small backend services when needed. Focused on performance optimization and clean UI architecture.
ReactNext.jsTypeScriptTailwind CSSREST APIGitHub Actions
Let's Connect
Open to full-time roles, freelance projects, and interesting conversations about backend systems.
Whether you have a role in mind, a project that needs a solid backend, or just want to talk system design — my inbox is always open.
Md Abdur Razzak
Backend Developer