Hi, I'm Zakaullah Javaid. A Senior Software Engineer with 4+ years of experience in the MERN stack, building scalable apps with Next.js and NestJS.
About me
As a Senior Software Engineer with years of industry experience, I specialize in building modern, scalable applicationsusing the MERN stack, complemented by frameworks like Next.js and NestJS. I thrive on developing high‑performance, maintainable solutions while solving complex challenges and pushing the boundaries of web development. With a strong focus on delivering user‑centric products and collaborating with cross‑functional teams, I turn innovative ideas into functional, production‑ready applications. I continuously hone my skills and stay ahead of industry trends to craft impactful software that drives business success.
What I Offer
Full-Stack Development
End-to-end web applications using MERN stack, Next.js, and NestJS with modern architecture patterns.
Mobile-First Design
Responsive web applications optimized for all devices with modern UI/UX principles.
Cloud & DevOps
AWS deployment, Docker containerization, CI/CD pipelines, and scalable infrastructure solutions.
Database Design
MongoDB, PostgreSQL, MySQL optimization with Prisma ORM and efficient data modeling.
Security & Authentication
JWT implementation, OAuth integration, and secure API development with best practices.
Performance Optimization
SSR/SSG implementation, code splitting, and performance monitoring for optimal user experience.
My projects
- •Full-featured hospital platform with integrated patient and doctor portals
- •Online and onsite appointment bookings with secure payment options
- •Twilio-based video consultations and real-time notifications
- •Scalable backend services using NestJS with Oracle and MySQL integration
- •Multilingual support (Arabic & English) with OTP authentication
- •Native mobile apps and Vue.js web platform with React.js appointment module
- •Patient history management, prescriptions, and medicine schedule tracking
Technologies Used
- Vue.js
- React.js
- NestJS
- MySQL
- Oracle
- Twilio
- Native Mobile Apps
- •AI-powered content transformation platform for text, audio, image, and video
- •Intelligent tools (SUM, BRIEF, VID, IMAGE) for content enhancement
- •Next.js 14 with dynamic routing and server-side rendering
- •OpenAI NLP models for summarization and keyword extraction
- •Chrome extension and CMS plugins for editorial workflows
- •Docker microservices on Azure with PostgreSQL database
- •Analytics dashboard with real-time content performance insights
Technologies Used
- Next.js
- Node.js
- Express.js
- PostgreSQL
- Docker
- Azure
- OpenAI
- Chrome Extension
- •SaaS solution for hospitals and doctors in Australia with RBAC
- •Clinic registration via credits and subscriptions with unique codes
- •QR code-based patient onboarding and question generation
- •Automated patient history generation and management
- •Multi-language support for international accessibility
- •Twilio OTP verification and collaborative workspaces
- •Supabase real-time database with AI APIs and Vercel deployment
Technologies Used
- Next.js
- Supabase
- AI APIs
- Vercel
- Twilio
- Multi-Language Support
- •Multi-tenant invoicing platform with Role-Based Access Control
- •Complete invoice lifecycle management and workflow automation
- •Complex approval chains with escalation paths and time-based decisions
- •Scheduled cron-jobs for Oracle DB synchronization
- •Secure payment handling with real-time status tracking
- •AWS S3 for document storage and SES for email communication
- •Finance dashboards with user activity logs and reporting
Technologies Used
- React.js
- Node.js
- Express.js
- MongoDB
- Oracle DB
- AWS (SES, S3, EC2)
- Cron Jobs
- •Robust SaaS platform with RBAC for user and team management
- •JWT authentication with Google and Facebook social login
- •Employee hierarchy management and project stage tracking
- •Real-time dashboards for project milestones and performance
- •Detailed finance module for budget and profit/loss calculations
- •Dynamic drag-and-drop UI for pipeline customization
- •AWS deployment with Jenkins CI/CD and Cloudinary integration
Technologies Used
- React.js
- Node.js
- Express.js
- MongoDB
- AWS
- Jenkins
- Cloudinary
- •Smart review system using NFC-enabled, QR-coded physical cards
- •Integration with Google and Instagram for platform-specific reviews
- •Comprehensive dashboard for staff performance monitoring
- •Ultra-fast 3-second review submission flow
- •Bulk card registration with unique link mapping
- •Analytics for customer engagement and review patterns
- •Heroku deployment with secure and efficient service delivery
Technologies Used
- MongoDB
- Express.js
- React.js
- Node.js
- Heroku
- •E-commerce platform for product sourcing from China
- •Product customization and wholesale services
- •Market-competitive pricing and fast global shipping
- •Next.js with Supabase and Vercel deployment
- •shadcn/ui components for beautiful, responsive design
- •Product catalog and sourcing service management
- •End-to-end sourcing solutions for business growth
Technologies Used
- Next.js
- Supabase
- Vercel
- shadcn/ui
- TypeScript
- Tailwind CSS
My skills
Frontend Development
Backend & APIs
Databases & ORMs
State & Forms
Cloud & DevOps
Security & Auth
Tools & Integrations
My experience
Senior Software Engineer
Ropstam Solutions, Lahore, PK
Built scalable microservices with NestJS, integrated databases, improved SEO and performance with SSR/SSG, implemented secure payments (Stripe), authored unit tests (Jest/RTL), and managed production deployments.
Mar 2023 - May 2025Software Engineer
Synergic Professionals, Faisalabad, PK
Handled data mapping/synchronization, developed modern front-ends, middleware for streamlined requests, used GraphQL for efficient querying, and built responsive UIs with reusable components.
Oct 2020 - Feb 2023BSCS - Computer Science
Virtual University of Pakistan
Bachelor in Computer Science covering algorithms, databases, networks, and software engineering.
2018 - 2022Client Testimonials
"Zakaullah worked as an embedded member of my team where he helped support full-stack development across a variety of our products. I was impressed by his excellent communication skills, expertise, and willingness to tackle all tasks big or small, frontend or backend. He worked exceptionally with our team and asked the relevant questions to ensure delivery of functional results with a timely and well-implemented solution. It was a privilege to both work with him as well as to provide this recommendation."
Jon McKinney
Technical Director at Nota
Nota
July 2025
"Excellent developer with great communication skills. Delivered our Medicare solutions platform on time with exceptional quality. Highly recommend for any healthcare technology projects."
M. Nabeel
Business Owner
Medicare Solutions • Birmingham, UK
2025
"Outstanding work on our logistics platform. Zakaullah understood our business requirements perfectly and delivered a robust solution that exceeded expectations."
Hammad Zahid
Business Owner
Logistics Services • Scotland, UK
2025
"Simple and good. Excellent developer handling custom creation product services. Very professional and delivers quality work."
M. Tahir
Custom Product Services
Beijing, China
2025
Contact me
Please contact me directly at zakaullahjavaid@gmail.com or through this form.