Senior Software Engineer with 7+ years crafting high-performance .NET & MERN Stack applications. Specialist in eCommerce platforms, automation systems, and cloud infrastructure.
I'm a Senior Software Engineer with 7+ years building enterprise-grade eCommerce platforms serving U.S. and international markets. My expertise spans the full stack — from database optimization and backend automation to pixel-perfect frontend experiences.
Currently pursuing an MS in Information Security at NED University, adding security-first thinking to every system I architect. I bring a rare combination of deep .NET expertise and modern MERN Stack proficiency.
Let's Work TogetherEnd-to-end software engineering services — from architecture to deployment. I deliver production-ready solutions with measurable impact.
End-to-end development of web applications using ASP.NET WebForms, C#, React.js, and Node.js. Scalable architecture with clean, maintainable code.
Enterprise eCommerce solutions with payment gateway integrations (Stripe, PayPal, Authorize.Net, Braintree), shipping APIs, and automated order workflows.
Advanced SQL Server performance tuning — stored procedures, CTEs, window functions, pagination optimization, and index strategies for high-volume systems.
CRON jobs, Windows Services, SSIS pipelines, and business automation — abandoned cart recall, supplier imports, order processing — reducing manual effort dramatically.
AWS EC2 & S3 deployment, Cloudflare CDN configuration, CI/CD pipeline setup, and production monitoring. Performance-first infrastructure management.
Secure payment processing, data protection, authentication systems, and security-first architecture. Pursuing MS in Information Security for cutting-edge expertise.
7+ years of progressive growth at IT Verticals Inc., from junior engineer to senior team lead.
Leading Agile/Scrum teams on enterprise eCommerce platforms. Driving architecture decisions, conducting code reviews, and managing production deployments for USA-based global businesses.
Built React.js frontends, Node.js/Express.js APIs, and MongoDB data layers. Delivered responsive, high-performance web applications for international clients.
Started in ASP.NET WebForms development, building eCommerce modules, payment integrations, and SQL Server stored procedures. Foundation in enterprise software engineering.
Real results from enterprise-scale engineering.
Designed and implemented an enterprise abandoned-cart recall system with configurable business rules, employee action logging, and post-order automation. Directly contributed to significant revenue growth for a USA-based eCommerce platform serving international markets.
End-to-end performance audit and optimization of a high-traffic checkout flow. Frontend bundling, image optimization, SQL query tuning, and Cloudflare CDN integration.
Unified FedEx, UPS, and USPS shipping APIs alongside Authorize.Net, PayPal, Braintree, and Stripe into a single fault-tolerant enterprise gateway with real-time rate calculations.
7+ years of hands-on expertise across enterprise software stacks.
Open to senior engineering roles in GCC, Gulf, and international markets. Let's discuss how I can add value to your team.
Shahzaib Moin (also referenced as Qateba Moin Shahzaib and shahzaib moin developer) is a Senior Full Stack Software Engineer based in Karachi, Pakistan with over 7 years of professional experience in enterprise software engineering. He is a specialist in both .NET technologies (ASP.NET WebForms, C#, SQL Server, SSIS) and the MERN Stack (MongoDB, Express.js, React.js, Node.js).
As a MERN Stack Developer and Full Stack Developer, Shahzaib has built enterprise eCommerce platforms, automated shipping integrations with FedEx, UPS, and USPS APIs, and payment gateways including Stripe, PayPal, Authorize.Net, and Braintree. His React.js frontends, Node.js APIs, and SQL Server database optimizations serve international markets including the United States, UAE, and GCC countries.
Shahzaib Moin is currently employed at IT Verticals Inc. in Karachi as a Senior Software Engineer and Team Lead, and is also pursuing a Masters in Information Security at NED University of Engineering & Technology (NEDUET), Karachi. He holds a BS in Computer Engineering from Sir Syed University of Engineering & Technology (SSUET).
Shahzaib is actively seeking Senior Software Engineer roles in Dubai, Abu Dhabi, UAE, Saudi Arabia (KSA), Qatar, Kuwait, Bahrain, and Oman. He is available for relocation to any GCC country and brings expertise in full stack web development, cloud infrastructure (AWS), and secure software engineering.