How I Architect RESTful APIs in ASP.NET Core for Production
A deep dive into the patterns, middleware, and architectural decisions that go into building production-grade APIs.
Read MoreSenior Full Stack Developer · 7+ Years · ASP.NET Core · Angular · C# · SQL Server
I help businesses, startups, and government organizations design, develop, and ship secure, scalable web applications — from robust APIs to pixel-perfect frontends. Whether you need a full product built from scratch or an experienced engineer on your team, I deliver.
I'm Anas Saleem — a Senior Full Stack Developer with over 7 years of professional experience building web applications that power real businesses.
My core expertise lies in the Microsoft ecosystem — ASP.NET Core Web API, C#, Entity Framework, and SQL Server on the backend, paired with Angular and TypeScript on the frontend. But I'm not limited to one stack — I've built mobile applications with Flutter, worked with Ionic for hybrid apps, and delivered e-commerce platforms, management systems, and consulting portals as a freelancer.
My professional journey spans three distinct sectors: I've engineered healthcare systems at Nixaam LLC that manage patient records and clinical workflows. I've built government-grade applications for Dubai's Knowledge & Human Development Authority. And at Datasoft Solutions, I currently architect RESTful APIs and enterprise applications that serve thousands of users.
Beyond my 9-to-5, I actively take on freelance projects — from animal management systems to full-stack e-commerce platforms — because I genuinely love building things that solve problems.
I write clean, scalable code. I communicate clearly. I deliver on time. And I care deeply about the craft.
Whether you're a startup needing an MVP or an enterprise modernizing legacy systems — here's what I bring to the table.
End-to-end web application development using ASP.NET Core, Angular, and SQL Server. From database design to deployment — I handle it all.
Secure, scalable, and well-documented RESTful APIs built with ASP.NET Core. Clean architecture, proper auth, and third-party integrations included.
Cross-platform mobile applications using Flutter and Ionic, connected to robust backend APIs. Smooth UI, native performance, both platforms.
Architecture review, code audit, performance optimization, and technical consulting for existing .NET and Angular projects.
A mix of enterprise work, government projects, and freelance builds.
Full-stack application built for Dubai's Knowledge & Human Development Authority. Developed secure backend services in ASP.NET Core and dynamic frontend modules in Angular. Handled authority operations, compliance workflows, and reporting dashboards for government stakeholders.
Comprehensive clinical system managing patient records, appointment scheduling, billing, and analytics dashboards. Served multiple healthcare facilities processing thousands of daily transactions.
End-to-end management system for animal tracking, health records, breeding management, and inventory. Built complete backend API + admin dashboard + reporting module.
Full-featured e-commerce application with product catalog, cart management, payment integration, order tracking, and admin panel. Built for a client to launch their online business.
A beautiful prayer times application that provides accurate salah timings, adhan notifications, and qibla direction. Built with Flutter for a smooth cross-platform experience, powered by a robust ASP.NET Core API backend.
Cross-platform mobile application built with Flutter and Dart. Clean UI/UX, API integration with .NET backend, push notifications, and offline capabilities.
Professional consultancy website with modern design, responsive layout, service pages, contact forms, and SEO optimization. Built and deployed for a consulting firm.
Custom content management system with dynamic page creation, media management, user roles, and CRUD operations.
Architected scalable API services at Datasoft Solutions powering multiple business applications. Implemented JWT authentication, role-based access, rate limiting, Swagger documentation, and third-party system integrations.
Datasoft Solutions (Pvt.) Ltd.
Karachi, Pakistan
Knowledge & Human Development Authority (via Kalsoft)
Karachi → Dubai, UAE (Remote)
Nixaam LLC
Karachi, Pakistan
PAF-Karachi Institute of Economics & Technology
Karachi, Pakistan
Independent
Remote / Worldwide
I believe in building in public. Here's some of my open-source work.

@anassaleem02
Senior Full Stack Developer building enterprise-grade applications
View Profile“Anas delivered our government portal on time with exceptional quality. His deep understanding of ASP.NET Core and Angular made the entire process smooth and professional.”
Project Manager
Senior PM · KHDA / Kalsoft
“Anas has been a cornerstone of our backend engineering at Datasoft. His API work is consistently clean, well-structured, and built to scale — the kind of code other developers actually enjoy working with. He takes ownership end-to-end, from database design to third-party integrations, and always delivers without needing his hand held. A genuinely reliable senior engineer.”
Team Lead
Snr Product Manager · Datasoft Solutions
A deep dive into the patterns, middleware, and architectural decisions that go into building production-grade APIs.
Read MorePractical performance optimizations I've learned from building large-scale Angular applications serving thousands of users.
Read MoreHow I manage a full-time senior role while running a successful freelance practice on the side.
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Read MoreDownload my complete resume in one click — optimized for ATS and hiring managers. All my experience, skills, and projects in a clean, professional format.
Download Resume (PDF)Whether you have a project idea, a job opportunity, or just want to chat about tech — I'd love to hear from you. I typically respond within 24 hours.
Phone
+92 321 2901464Location
Karachi, Pakistan
Available for remote work worldwide
Currently accepting freelance projects and open to full-time roles