You will get a Mern Stack Developer making React , Node, Mongodb and Express website
Project details
Backend Expert, Frontend Expert, Full-Stack Coder, API Specialist, Database Engineer, Mobile App Builder, Cloud Specialist, Blockchain Expert, UI Designer, UX Designer, DevOps Specialist, Payment Integration Specialist, Real-Time Features Builder. Focused on making secure, fast, and easy-to-use websites and apps for clients.Website Developer, App Developer, Backend Expert, Frontend Expert, Full-Stack Coder, API Specialist, Database Engineer, Mobile App Builder, Cloud Specialist, Blockchain Website Developer, App Developer, Backend Expert, Frontend Expert, Full-Stack Coder, API Specialist, Database Engineer, Mobile App Builder, Cloud Specialist, Blockchain Expert, UI Designer, UX Designer, DevOps Specialist, Payment Integration Specialist, Real-Time Features Builder. Focused on making secure, fast, and easy-to-use websites and apps for clients.Website Developer, App Developer, Backend Expert, Frontend Expert, Full-Stack Coder, API Specialist, Database Engineer, Mobile App Builder, Cloud Specialist, Blockchain Expert, UI Designer, UX Designer, DevOps Specialist, Payment Integration Specialist, Real-Time Features Builder. Focused on making secure, fast, and easy-to-use
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
PSD to HTML, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$150
|
Standard
$300
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 7 days |
Number of Revisions | Unlimited | Unlimited | Unlimited |
Number of Pages | 2 | 4 | 7 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
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AJ
Amisha J.
Nov 10, 2025
MEAN Stack Application Developer (Full-Time | Angular & Node.js)
AM
Ayomide M.
May 31, 2025
Experienced Chrome Extension Developer for Video Downloader & Ad Blocker
Will work with him again
YC
Yu C.
Mar 29, 2024
Small stripe dev task
About Qaisar
Sr Full Stack Dev React js | Node js | Express js | MongoDB | Nest js
50%
Job Success
Dera Ghazi Khan, Pakistan - 10:48 am local time
Technical Expertise
My core strength is developing RESTful APIs and GraphQL endpoints that serve as the backbone of web and mobile applications. Using Python and Node.js, I create performant backend systems that handle complex business logic, from payment processing to real-time data analytics. For databases, I optimize both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) systems, designing schemas for scalability and using indexing, sharding, and aggregation pipelines to reduce query latency by up to 70%.
In cloud environments, I deploy applications on AWS (EC2, S3, Lambda, RDS) using Docker and Kubernetes, ensuring high availability and fault tolerance. I automate CI/CD pipelines with GitHub Actions and Jenkins, reducing deployment times by 50% while maintaining rigorous testing standards with Pytest and Jest. My work with serverless architectures (AWS Lambda, Firebase) has helped clients cut infrastructure costs by 30-40%, and I implement robust security protocols like JWT, OAuth2, and RBAC to safeguard sensitive data.
Recent Projects
FinTech Payment Gateway:
Built a Python-based payment processing system integrated with Stripe and PayPal, handling $8M+ monthly transactions.
Reduced API response times to under 200ms using Redis caching and optimized PostgreSQL queries.
Achieved PCI DSS compliance and 99.99% uptime through load-balanced AWS EC2 instances and auto-scaling groups.
Healthcare Data Management System:
Developed a HIPAA-compliant Node.js API for a telehealth platform, managing 50,000+ patient records in MongoDB.
Implemented real-time notifications with WebSocket and audit logging for regulatory compliance.
Reduced server costs by 45% by migrating monolithic components to AWS Lambda serverless functions.
E-commerce Microservices Migration:
Converted a legacy monolithic backend into Dockerized microservices (Python + Flask), improving scalability.
Integrated Kafka for event-driven order processing, reducing checkout latency by 60%.
Set up Kubernetes clusters on AWS EKS, achieving zero downtime during peak traffic (Black Friday sales).
Real-Time Analytics Engine:
Designed a Python-based analytics pipeline processing 2M+ daily events for a SaaS platform.
Utilized PostgreSQL for relational data and Redis for real-time caching, improving report generation speed by 50%.
Deployed on AWS ECS with Terraform IaC, enabling seamless scaling across multiple regions.
Niche Specializations
FinTech: Payment gateways, fraud detection algorithms, and blockchain integrations (Web3.js).
Healthcare: HIPAA/GDPR-compliant systems, EHR/EMR integrations, and audit trail implementations.
E-commerce: Inventory management APIs, cart/checkout optimization, and headless commerce backends.
DevOps & Cloud: Cost-effective AWS/GCP architectures, Kubernetes orchestration, and Infrastructure-as-Code (Terraform).
Tools & Technologies
Languages: Python, Node.js, TypeScript, SQL, Bash
Frameworks: Django, Flask, Express.js, Nest.js, FastAPI
Databases: PostgreSQL, MySQL, MongoDB, Redis, DynamoDB
Cloud/DevOps: AWS (EC2, S3, Lambda, RDS, EKS), Docker, Kubernetes, Terraform, GitHub Actions, Jenkins
APIs: REST, GraphQL, WebSocket, gRPC, Swagger/OpenAPI
Testing: Pytest, Jest, Postman, Locust (load testing)
Security: JWT, OAuth2, RBAC, SSL/TLS, OWASP compliance
Why Hire Me?
Proven Scalability: Built systems supporting 1M+ daily active users with sub-second latency.
Cost Optimization: Reduced client cloud bills by 30-50% through serverless architectures and auto-scaling strategies.
Transparent Workflow: Daily updates via Slack/Teams, sprint planning with Jira, and thorough documentation.
Full-Cycle Ownership: From database design and API development to deployment, monitoring (CloudWatch), and maintenance.
Future-Proof Solutions: Prioritize clean code, modular architecture, and thorough testing to minimize technical debt.
Collaboration Process
Discovery: Understand your business goals, technical requirements, and pain points.
Planning: Propose architecture diagrams, tech stack recommendations, and milestones.
Development: Build, test, and iterate with weekly demos and feedback loops.
Deployment: Launch with zero downtime using blue-green deployments or canary releases.
Support: Post-launch monitoring, performance tuning, and scalability adjustments.
Steps for completing your project
After purchasing the project, send requirements so Qaisar can start the project.
Delivery time starts when Qaisar receives requirements from you.
Qaisar works on your project following the steps below.
Revisions may occur after the delivery date.
Responsive ECommerce Website Design | Modern UI/UX for Your Business
Whether you're starting fresh or revamping your existing store, I'll build a solution that's fast, user-friendly, and optimized for all devices. Fully responsive design for desktop, tablet, and mobile. User-focused interface. Payment gateway.