Hi, I'mHabib Ur Rehman
Full Stack Engineer
Building scalable and performance-optimized web applications with 5+ years of experience
About Me
I'm a Full Stack Engineer with over 5 years of experience crafting scalable web applications that deliver exceptional user experiences.
My expertise spans the entire development lifecycle from ideation and architecture to deployment and maintenance. I specialize in building high-performance applications using modern technologies and best practices.
I'm passionate about clean code, performance optimization, and creating intuitive user interfaces that solve real-world problems. My approach combines technical excellence with a deep understanding of business needs.

Work Experience
Senior Software Engineer
Devsinc
Key Achievements:
- •Developed and contributed to 10+ web applications using JavaScript, React, Next.js, Express, NestJS, Node.js Microservice Architecture, AWS and GCP.
- •Designed and implemented scalable backend solutions with ExpressJs and MongoDB, implementing indexing, aggregation pipelines, optimizing code performance and reducing server response time by 30%.
- •Developed micro frontend solutions with React.js, Next.js and Redux, increasing user engagement and overall satisfaction by 40%, using SSR, SSG and ISR.
- •Integrated React applications with Google Cloud Platform (GCP) services, including Cloud Run, Firestore, Cloud Storage, Cloud Functions, and Pub/Sub, achieving a 99.9% uptime, reducing latency by 40%, and enhancing scalability.
- •Redesigned a monolithic application into a microservices architecture with Docker, Kubernetes (GKE), and Nestjs, enhancing deployment speed and cutting downtime by 60%.
Featured Projects
Explore some of my recent work showcasing my expertise in building complex applications

PUBLISHING.AI
AI-powered self-publishing platform helping authors generate and refine full manuscripts, supported by a comprehensive dashboard and automation tooling.

INSTANTLY.AI
Full-stack cold email outreach platform with AI-driven personalization, campaign automation, inbox warm-up, and real-time analytics for B2B engagement.
Podimetrics
Web dashboard and data pipeline for remote patient monitoring of diabetic foot ulcers using a smart mat device, enabling early detection via heatmaps and trends.

INSTANTLY.AI Mobile App
React Native app for managing email campaigns on-the-go, leveraging OpenAI prompts and WebSockets to personalize messages and track real-time engagement.
Web Projects
A collection of web applications and websites I've developed throughout my career.

Digbi Health
Move beyond Point Solutions to Holistic Care informed by Gut Microbiome, CGM, and Genetics. We use genetic, gut microbiome, food, lifestyle, and clinical signals to target the root cause of illness.

Staples
We eliminate the need for direct contact, as our delivery drivers will leave your package at the front door after the driver knocks or rings your doorbell. If a signature is needed, the driver will step 6 feet back and wait for you to sign for your package before returning to their vehicle.

QFC
We are a leading onshore business and financial centre located in Doha, welcoming international and domestic companies to become registered QFC entities. QFC aims to promote Qatar as a major business and commercial hub at the crossroads between East and West.

Joey Joey
One-click RSVP to group hangouts, classes and adventures nearby. Have other ideas? Host your own and we can help rally a fun crowd. Remember when friends were just a block away? We recreate that magic, turning your classmates from yoga into your go-to crew for impromtu dinners and bad jokes.

Aire Health
AIRE Skinstor Allowing Dermatologists to conduct real-time research studies and patient outcome analysis to foster health care breakthroughs. AIRE EDU is skincare sampling platform for Residents where they can learn about new products, research studies, and obtain free samples throughout the year.

Vet and Tech
VetAndTech Is Your Ultimate Source For Educational And Professional Needs In Veterinary Practices. Easily Explore Veterinary Educational Resources, Access CE Courses, Webinars, and Guides, And Get Updates On Upcoming Conference.

Equip-bid
Equip-Bid Auctions is your full-service online auction company that offers an array of products and services- ranging from business liquidations to antiques and restaurant equipment. Sign up now to create and add new auctions and get optimum value for personal and commercial property.

MCG(MyCareGorithm)
MyCareGorithm was created with the singular purpose of developing the tools to transform the consultation encounter between a cancer patient and a cancer specialist. Intent is to replace the status quo with a multimedia, educational, impactful, personalized, and visually impressive experience.

Telus
Everything you need is in the My TELUS app. Manage your services anywhere, anytime. Pay your bill, check your usage, change your plan, stay on top of your account and more with the My TELUS app.
React Native Applications
A showcase of React Native mobile applications I've developed for Android and iOS platforms.
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My Technical Palette
A colorful showcase of my technical expertise across different domains of software development.
Interactive content
Frontend
Backend
Mobile
Database
DevOps
Cloud & Serverless
Testing
Security
Real-Time
Monitoring & Performance
APIs & Integrations
Project & Collaboration
Version Control
My Development Philosophy
Just as an artist carefully selects colors from their palette to create a masterpiece, I combine these technical skills to craft elegant, efficient, and scalable software solutions that solve real-world problems.
Technical Skills
Backend Technologies
- Node.js
- Express.js
- NestJS
- TypeScript
- Fastify.js
- GraphQL
- REST
- Webhooks
- Bull Queues
- Socket.io
- Microservice Architecture
- Event-Driven Architecture
- gRPC
- SOAP APIs
Serverless Technologies
- Google Cloud Functions
- Firebase Functions
- Cloud Run
- AWS Lambda
- API Gateway
- WebSocket APIs
- EventBridge
- Firebase Hosting
Real-Time & Messaging
- WebSockets
- Firebase Realtime Database
- Redis Pub/Sub
- GraphQL Subscriptions
- MQTT
- Kafka
- RabbitMQ
- ActiveMQ
- SignalR (.NET)
Frontend Technologies
- React.js
- Next.js
- Vue.js
- Nuxt.js
- Redux
- RTK (Redux Toolkit)
- React Query
- Zustand
- MobX
- Preact
- TypeScript
- PWA (Progressive Web Apps)
- SSR (Server-Side Rendering)
- ISR (Incremental Static Regeneration)
- SSG (Static Site Generation)
UI Libraries & Styling
- Material UI
- Tailwind CSS
- Bootstrap
- Reactstrap
- Vuetify
- Shadcn
- Reka UI
- Radix UI
- Chakra UI
- CSS Grid
- Flexbox
Testing & Quality Assurance
- Jest
- Supertest
- Vitest
- Cypress
- xUnit
- Test-Driven Development (TDD)
- Behavior-Driven Development (BDD)
- End-to-End Testing (E2E)
- Unit Testing
- Integration Testing
- Continuous Integration (CI)
Database & ORM
- PostgreSQL
- MySQL
- MongoDB
- Firebase Firestore
- Firebase Realtime Database
- Appwrite
- Amazon RDS
- Azure SQL Database
- TypeORM
- Mongoose (ODM)
- Prisma
- Knex.js
- Entity Framework Core
- Dapper
- Database Replication & Sharding
Cloud & DevOps
- AWS (S3, Lambda, RDS, EC2, CloudFront, API Gateway, IAM)
- Google Cloud Platform (GCP)
- Firebase
- Heroku
- Terraform
- Pulumi
- GitHub Actions
- Google Cloud Build
- Docker
- Kubernetes
- Infrastructure as Code (IaC)
- Automated Testing & Deployment
Security & Authentication
- OAuth 2.0
- OpenID Connect
- JWT (JSON Web Tokens)
- Firebase Authentication
- Auth0
- Single Sign-On (SSO)
- Role-Based Access Control (RBAC)
- HTTPS / SSL / TLS
- API Rate Limiting
- Secure Coding Practices
- Data Encryption
Monitoring & Logging
- Google Stackdriver
- Prometheus
- Grafana
- DataDog (DD)
APIs & Integrations
- RESTful APIs
- GraphQL APIs
- gRPC
- Stripe
- Twilio
- SendGrid
- PayPal
- Google APIs
- AWS SDK
- OpenAI API
- Third-Party API Integration
- API Rate Limiting
Performance & Scalability
- Caching (Redis, Memcached)
- Load Balancing
- Horizontal & Vertical Scaling
- Auto-Scaling
- Content Delivery Networks (CDNs)
- Asset Optimization (Lazy Loading, Image Compression)
- Query Optimization
- Database Indexing & Tuning
- Asynchronous Programming (.NET async/await, TPL)
Project & Version Control
- Git
- GitHub
- GitLab
- Bitbucket
- Jira
- Figma
- Miro
- ClickUp
- Slack
- Microsoft Teams
- Confluence
- Zoom
Interested in working with me?
I'm available for freelance or contract work. Let’s build something great together!
Hire Me on UpworkGet In Touch
Contact Information
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