Hire the Best ASP.NET Developers in Lahore, PK

Businesses don't struggle because they lack features. They struggle because slow APIs, unstable deployments, and poorly designed backend systems eventually become expensive to maintain. I build secure, scalable web applications with ASP.NET Core, Azure, React, and Angular that are designed for production from day one. Most of my work focuses on business applications where reliability matters, including fintech platforms, SaaS products, internal business tools, and enterprise systems. Core Expertise ✔ ASP.NET Core (.NET 8/10), C# ✔ REST APIs & Clean Architecture ✔ Azure App Services, Azure Functions, Azure DevOps ✔ React, Angular, Next.js, Vue.js ✔ SQL Server, PostgreSQL, Entity Framework Core ✔ Docker, GitHub Actions, CI/CD ✔ JWT Authentication & Role-Based Security Projects I've worked on include • Payment gateway integrations and wallet systems • KYC and user verification workflows • Crypto-to-fiat transaction platforms • Deal management systems • Internal admin dashboards • Enterprise REST APIs I focus on writing clean, maintainable code that scales as products grow. Whether it's building a new application, improving an existing backend, or deploying to Azure, I prefer solutions that are simple, reliable, and easy for future developers to maintain. If you're looking for someone who communicates clearly, delivers on time, and builds software that works in production, let's discuss your project.

I’m a Full Stack Developer specializing in ASP.NET Core, C#, Angular, and Laravel, helping businesses build, modernize, integrate, and maintain reliable web applications. I work with both new projects and existing applications, so whether you need to build a web application from scratch, add new features to an established system, integrate a third-party API, fix difficult bugs, or improve an application's performance, I can help take the project from requirement to implementation. My approach is simple: first understand what you’re trying to achieve, then build a solution that is clean, maintainable, secure, and practical for your business. What I Can Help You With Backend & Web Application Development ASP.NET Core / .NET / C# ASP.NET MVC Entity Framework Laravel / PHP RESTful API development Backend architecture and business logic Existing application improvements and feature development Frontend Development Angular ReactJS TypeScript JavaScript HTML5 SCSS Bootstrap Tailwind CSS Responsive web interfaces and dashboards Database & Data SQL Server MySQL PostgreSQL Firebase Database design, queries, relationships, and optimization API & Third-Party Integrations REST API integration Third-party service integrations OpenAI API integrations Payment gateway integrations Connecting frontend applications with backend services Troubleshooting API and integration issues Cloud & Deployment Microsoft Azure AWS Google Cloud VPS deployment Application configuration and deployment support Relevant Project Experience I’ve worked on a variety of web applications, including enterprise systems, SaaS platforms, dashboards, EMR systems, accounting solutions, and custom business applications. My recent work includes: Developing enterprise applications using ASP.NET Core, C#, and Angular Working on a multi-tenant SaaS platform using .NET Core, Angular, and microservices Building and maintaining Laravel/PHP web applications Working on Laravel + React applications Implementing and improving OpenAI integrations Integrating Stripe payments into an existing .NET + Angular application Developing and integrating REST APIs Adding features and fixing issues in existing production applications Working with databases and backend business logic to ensure reliable application functionality I Can Help If You Are... Starting a new web application Maintaining or extending an existing application Migrating or modernizing an older system Building a SaaS product Developing an admin dashboard or business portal Integrating APIs or third-party services Adding AI functionality using OpenAI Integrating online payments Fixing bugs or resolving difficult technical issues Improving application performance or reliability Looking for ongoing development and maintenance Why Clients Choose to Work With Me I don’t believe successful development is only about writing code. Good communication, understanding requirements, attention to detail, and taking ownership of the result are equally important. My Upwork clients have recognized me for being committed to quality, detail-oriented, solution-oriented, reliable, professional, and accountable for outcomes. I also maintain a 100% Job Success Score on Upwork. I keep communication clear throughout the project, provide progress updates when needed, listen carefully to feedback, and make sure the delivered functionality matches the agreed requirements. If you already have an existing application, I can first understand the current architecture and codebase before making changes. If you’re starting something new, I can help turn your requirements into a practical technical solution. Have a project in mind? Send me the details, and let’s discuss what you’re trying to build, improve, or solve.

I'm a Senior Full-Stack .NET Developer with 8+ years building secure, scalable web applications using ASP.NET Core, C#, Entity Framework Core, and React — deployed on AWS and Microsoft Azure. I've led development teams and delivered production systems for fintech, real estate, logistics, and SaaS businesses. What I've built: A cryptocurrency exchange platform with real-time trading, KYC verification, and multi-currency wallets (Binance, Stripe, Veriff API integrations) A property management SaaS platform with automated rent collection, digital leasing, and AI-powered maintenance workflows A business operations platform (Tamarran) handling bookings, POS, and payments for enterprise clients Multiple REST APIs and microservices on AWS Lambda and Azure Functions Core stack: C#, ASP.NET Core, .NET 6/8, Entity Framework Core, SQL Server, React, AWS (Lambda, API Gateway), Azure (Functions, Blob Storage, Service Bus), REST APIs, CI/CD. Bonus: I also integrate AI features into .NET/React applications — chatbots, workflow automation, and LLM-powered tools — for clients who want to add intelligence to existing systems. I've completed 72 jobs on Upwork with a 100% Job Success Score and Top Rated status. I communicate clearly, deliver on time, and write code meant to be maintained, not just shipped. Let's talk about what you're building.

🎁 A 100% refund if I set the wrong expectation and can’t deliver. 🏆 10+ Years of Experience 🏆 Top Rated Plus Freelancer 🏆 100% Job Success 🏆 40+ Successfully Completed Projects Expert in full-stack web application development, Azure Bot Framework, Microsoft Teams apps, legacy application modernization, and long-term product support using ASP.NET Core, C#, Blazor, MVC, Web API, React, Angular, and modern cloud technologies. 𝐋𝐨𝐨𝐤𝐢𝐧𝐠 𝐟𝐨𝐫 𝐦𝐨𝐫𝐞 𝐭𝐡𝐚𝐧 𝐣𝐮𝐬𝐭 𝐚 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫? Hi, I'm Arslan Zafar—a Senior Full Stack .NET Developer focused on building secure, scalable, and high-performance applications that solve real business problems. With 8+ years of experience, including work with organizations like TCS, T-Mobile, and CBA, I bridge the gap between complex business requirements and clean, scalable technical solutions. ASP.NET MVC and legacy modernization ## Tech stack * C#, .NET, ASP.NET Core, Blazor * WPF, WinForms * Entity Framework, LINQ, SQL Server * DevExpress, Telerik * REST APIs and backend integrations Some of my most complex ASP.NET MVC work has been in defence and industrial sectors. I modernized a legacy web platform for a company managing high-uptime naval fleet assets — warships that cannot afford downtime. T. I stabilized the ASP.NET Core back-end, eliminated the performance bottlenecks, and established proper development processes from scratch. ASP.NET Zero and enterprise acceleration ASP.NET Zero is my go-to when enterprise clients need multi-tenancy, role-based permissions, and audit logging without spending the first three sprints on boilerplate. I have used it to accelerate delivery on projects in pharma automation, workplace management software, and industrial IoT — cutting setup time significantly and letting the team focus on actual business logic from day one. 🌳 Backend Expertise 🍂 .NET 10, ASP.NET Core, C# 🍂 REST API Development 🍂 Minimal APIs 🍂 Microservices & Distributed Systems 🍂 Clean Architecture 🍂 Entity Framework Core 🍂 Secure Authentication (JWT, OAuth, Identity) 🍂 Role-Based Access Control 🍂 SignalR 🍂 Background Services & Job Processing 🍂 Third-Party API Integration 🌲 Desktop & Mobile Development 🌱 Cross-Platform Desktop Applications 🌱 Windows Desktop Applications 🌱 Mobile Application Backends 🌱 Business Productivity Applications 🌱 Enterprise Desktop Solutions 🖼️ Frontend & Cross-Platform Expertise 🔸 Blazor 🔸 Razor Pag What I can help you with: ✅ ASP.NET Core, C#, .NET 8, Web API, and backend development ✅ React, Angular, Blazor, TypeScript, and full-stack web applications ✅ SaaS platforms, admin panels, dashboards, and enterprise business systems ✅ Legacy .NET Framework / ASP.NET MVC modernization ✅ SQL Server, EF Core, database design, reporting, and performance tuning ✅ Azure App Services, Azure Functions, Azure Service Bus, Azure SQL, and Key Vault ✅ Microservices, clean architecture, CQRS, background jobs, and distributed systems ✅ API integrations with Xero, QuickBooks, Zoho Books, Stripe, PayPal, Twilio, and third-party platforms ✅ AI integrations using OpenAI, automation workflows, OCR, and intelligent business tools ✅ WinForms, WPF, desktop applications, printer SDKs, RFID, barcode, and hardware integrations ✅ CI/CD pipelines, GitHub Actions, Azure DevOps, Docker, deployment, and production support Keywords Senior .NET Developer Upwork Full-Stack .NET Developer Upwork ASP.NET Core Developer Upwork ASP.NET MVC Developer Upwork C# Developer Upwork .NET Core Developer Upwork .NET Backend Developer Upwork .NET API Developer Upwork REST API Developer Upwork Microservices Developer Upwork Enterprise Application Developer Upwork SaaS Application Developer Upwork Cloud Application Developer Upwork Azure .NET Developer Upwork SQL Server Developer Upwork Database Architecture Specialist Upwork Performance Optimization Specialist Upwork Software Maintenance & Support Upwork Application Migration & Upgrade Services Upwork Third-Party Integration Specialist Upwork Core Skills .NET 10, C#, ASP.NET Core, Entity Framework Core, Blazor, Razor Pages, .NET MAUI, Avalonia UI, React, Next.js, JavaScript, TypeScript, SQL Server, PostgreSQL, MySQL, MongoDB, Redis, Azure, AWS, Docker, REST APIs, SignalR, OpenAI, Claude, Gemini, Semantic Kernel, RAG, MCP, AI Agents, AI Automation, WordPress, WooCommerce, Microservices, Clean Architecture, DevOps, CI/CD, Enterprise Software, SaaS Development, Desktop Applications, Mobile Solutions. ASP.NET Webform, VB.NET, ASP.NET Core, NETMUAI, C#, Blazor, Microservices, Azure, SQL Server, Web API, Angular, Docker, DevOps, Cloud Architecture, SSRS, Enterprise Applications, Legacy application, Stripe Integration, PayPal API, Payment Processing, Third-Party APIs*

Need an existing .NET application fixed, modernized, or extended without breaking the business workflows already running in production? I help businesses maintain and modernize .NET systems using C#, ASP.NET Core, REST APIs, SQL Server, Azure, and modern frontend technologies. A large part of my work involves existing and legacy applications - understanding the current architecture first, fixing production issues, separating business logic, building secure APIs, improving database performance, and progressively moving older functionality into cleaner ASP.NET Core solutions. I can help with: * ASP.NET Core applications and REST APIs * Legacy .NET / ASP.NET modernization * SaaS, ERP and business applications * SQL Server, EF Core, Dapper and performance optimization * Authentication, RBAC and multi-tenant systems * Azure deployment and cloud integrations * Blazor and React frontend development * Third-party API and payment integrations * OpenAI / Azure OpenAI and custom RAG integrations * Production debugging, performance and stability issues I’m a Top Rated Upwork developer and Microsoft Certified Azure Developer Associate (AZ-204). My approach is straightforward: understand the existing system and business requirement first, identify the real problem, and then implement the simplest maintainable solution instead of adding unnecessary complexity. If you have an existing .NET system that needs attention, a legacy application that needs modernization, or a backend/API that needs to scale, send me the current challenge. I’ll review it and suggest a practical technical approach before we move forward. Keywords: .NET Full Stack Developer | ASP.NET Core | C# | ASP.NET Web API | REST API Integration | Microsoft Azure | SQL Server | Entity Framework Core | Blazor | React.js | SaaS Development | Admin Dashboards | Third-Party API Integration | Legacy .NET Modernization | OpenAI API | RAG Development

I’m an ASP.NET Core Developer with strong experience building secure, scalable, and high-performance web applications and APIs using C# and SQL Server. My focus is on delivering clean, maintainable, and enterprise-ready solutions that help businesses run efficiently. 🔹 Core Skills Backend Development: ASP.NET Core, C#, Web API, Entity Framework Core, LINQ Database: SQL Server (design, stored procedures, indexing, query optimization) Architecture & Patterns: Clean Architecture, DDD, Repository Pattern, Modular Design Real-time & Messaging: SignalR, background jobs, event-driven workflows Authentication & Security: ASP.NET Identity, JWT, OAuth2, OpenID Connect, role-based access Cloud & DevOps: Azure App Services, Azure SQL, Docker, CI/CD pipelines (Jenkins/GitHub Actions) 🔹 What I Deliver ✔ Robust REST APIs with secure authentication/authorization ✔ Enterprise applications with modular architecture and reusable components ✔ Role-based dashboards, reporting modules, and admin panels ✔ Database optimization (queries, indexing, performance tuning) ✔ Real-time communication using SignalR for notifications and live updates ✔ Deployment-ready solutions on Azure & Docker 🔹 Recent Projects Sales & Inventory Management API – ASP.NET Core Web API with multi-tenant support, EF Core, and SQL Server backend. Notification System – Implemented SignalR real-time messaging with role-based delivery. Business Application Migration – Legacy system modernized to ASP.NET Core with clean architecture and CI/CD pipelines. 🔹 Why Clients Hire Me Strong background in the .NET ecosystem with proven enterprise experience Ability to deliver secure, production-ready APIs and applications Clean, testable code with a focus on long-term maintainability Clear communication, responsiveness, and commitment to deadlines