Hire the Best .NET Core Developers in Gujranwala, PK

🕒 5+ Years of Experience |🏢 Enterprise and Startup Clients | 🐞 Bug-Fixing Specialist Need an AI-powered CRM, WhatsApp automation, SaaS platform, or real estate portal built right the first time? That is exactly what I do. I build AI-integrated, full-stack web applications using ASP.NET Core and React/Next.js — clean architecture, production-ready, built to scale. I'm Yasir Rehman. Most recently, I built a complete AI-powered digital ecosystem for RTD Huttons — one of Singapore's largest real estate agencies — serving 4,000+ agents daily across six production platforms. Here is what I delivered for them: - RTD HUB: WhatsApp Business CRM with Meta Business API, broadcast automation, AI auto-replies, sequence builder, and contact management - RTD Advisor: AI-powered property scoring, market analysis, financial calculators, BI dashboards, and full CRM — used daily by thousands of agents - AI Ads Platform: Facebook Ads API + TikTok Ads API integration with AI-driven lead scoring, automated lead distribution, and inbound lead capture via a custom website AI - Showflat: CMS-based property website builder with Google Ads conversion tracking, custom domains, spam filtering, and lead management - AI Assessment Platform: adaptive AI question generation, timed exams, progress tracking, and agent certification workflows - RES Exam App: mobile learning platform with mock tests, performance analytics, and agent onboarding That is real enterprise software — built, shipped, and running in production at scale. 💻 Core Services --------------------------------- 🔹 AI-Powered SaaS Platforms Multi-tenant architecture, LLM integration, OpenAI API, AI workflows 🔹 Custom CRM Development AI lead scoring, pipelines, automation, agent dashboards, multi-platform 🔹 WhatsApp Business Automation Broadcasts, drip sequences, AI chatbot, Meta CAPI, WhatsApp Business API 🔹 Ad Platform Integration Facebook Ads API, TikTok Ads API, lead distribution, and AI routing 🔹 Real Estate Technology Property portals, listing builders, agent platforms, market intelligence 🔹 Admin Dashboards and Panels Role-based access, analytics, reporting, and data management 🔹 API Development and Integration RESTful APIs, JWT, OAuth2, Stripe, Google Ads API, third-party services 🔹 AI Integration & Automation OpenAI API, agentic workflows, AI bug fixing, legacy app modernization 🧰 Tech Stack --------------------------------- 🔹 Backend: ASP.NET Core, .NET MVC, C#, Entity Framework, Razor Pages 🔹 Frontend: React.js, Next.js, TypeScript, JavaScript ES6, Tailwind CSS 🔹 AI & Automation: OpenAI API, LangChain, Meta Business API, WhatsApp Cloud API 🔹 Ad Platforms: Facebook Ads API, TikTok Ads API, Google Ads API 🔹 Databases: SQL Server, PostgreSQL 🔹 Cloud & DevOps: Azure, AWS, Docker, CI/CD 🔹 Integrations: Stripe, PayPal, Meta CAPI, third-party APIs 💡 Why Clients Choose Me --------------------------------- ✅ Real Enterprise Experience at Scale 6 production systems serving 4,000+ daily users — not side projects ✅ AI Built In, Not Bolted On I've shipped AI-powered scoring, auto-replies, lead routing, and adaptive assessments in live production environments ✅ Full Stack in One Person Frontend, backend, AI, database, and deployment — no handoff gaps ✅ Business-Focused Thinking I understand your business problem first, then build the right solution ✅ 100% Job Success Score 20 completed jobs. Zero unhappy clients. 📩 Ready to Build Something Serious? --------------------------------- Whether you need an AI-powered SaaS platform, WhatsApp automation, custom CRM, or real estate technology — I deliver clean, scalable, production-ready solutions. Message me or invite me to your job post. Let's build.

I build and scale multi-tenant SaaS platforms, Angular frontends, NestJS/Node.js backends, AWS serverless infrastructure. 8+ years, Top Rated, 100% Job Success. Most of my work is with product teams who need someone to own a feature or module end-to-end: design it, build it, ship it, and keep communicating clearly the whole way through. Recent work includes an Industrial IoT platform running in manufacturing facilities across Europe, and a CRM used by multiple US companies. I've also migrated legacy monoliths into multi-tenant cloud systems and built serverless backends on AWS Lambda, API Gateway, and DynamoDB. What I can help you with: • SaaS product development - Angular + NestJS or .NET Core • Multi-tenant architecture (data isolation, tenant onboarding, role-based access) • AWS serverless: Lambda, API Gateway, DynamoDB, S3, Cognito, CloudFormation • REST & GraphQL APIs, third-party integrations • Modernizing legacy codebases without breaking production If you're an engineering lead or founder who wants a senior developer who asks the right questions upfront and delivers without surprises, let's talk.

🚀 Senior ASP.NET Core Developer | Angular Developer | C# Developer | .NET Core Developer | REST API Developer | SQL Server Developer | Azure DevOps Engineer I help businesses build scalable ASP.NET Core applications, Angular web applications, REST APIs, SaaS platforms, and enterprise software solutions using C#, .NET Core, ASP.NET Web API, SQL Server, and Azure DevOps. If you need a developer to build a secure ASP.NET Core backend, optimize a SQL Server database, develop Angular frontend applications, or create REST API integrations, I can help. 💡 My expertise focuses on solving business problems through: ✅ ASP.NET Core Development ✅ Angular Development ✅ .NET Core Development ✅ C# Backend Development ✅ REST API Development ✅ ASP.NET Web API ✅ SQL Server Database Design ✅ SQL Query Optimization ✅ Microservices Architecture ✅ Clean Architecture ✅ MVC Framework Development ✅ Full-Stack Development ✅ TypeScript Development ✅ JavaScript Development ✅ Azure DevOps CI/CD Pipelines I have developed and delivered multiple enterprise applications, POS systems, Inventory Management Systems, CRM Dashboards, Clinic Management Systems, Property Management Systems, E-commerce Platforms, and SaaS Products. 🔹 Enterprise Projects I Have Built: ✅ Enterprise POS System Built with ASP.NET Core, Angular, SQL Server, Microservices, and Clean Architecture for billing, inventory, reporting, and business workflows. ✅ Property Management System (PMS) Developed with ASP.NET Zero, Angular, C#, SQL Server, and REST API for operational automation and management workflows. ✅ CRM Dashboard Built using ASP.NET Core, REST API, Clean Architecture, and SQL Server for customer data management and business insights. ✅ Inventory Management POS Developed using .NET Core, Angular, Onion Architecture, and SQL Server for stock control and inventory workflows. ✅ Clinic Management System Built using ASP.NET Core, C#, Angular, and SQL Server for appointments, billing, and patient workflows. ✅ E-commerce Platform Developed using Microservices, REST API, ASP.NET Core, and Angular for scalable online sales systems. 🔹 Core Tech Stack: ✔ ASP.NET Core ✔ .NET Core ✔ .NET Framework ✔ ASP.NET Web API ✔ Angular ✔ TypeScript ✔ JavaScript ✔ C# ✔ SQL Server ✔ REST API ✔ Microservices ✔ Clean Architecture ✔ MVC Framework ✔ Azure DevOps ✔ CI/CD 🔹 What Clients Get: ✔ Scalable ASP.NET Core backend systems ✔ Modern Angular frontend applications ✔ Secure REST API development ✔ SQL Server performance optimization ✔ Clean Architecture implementation ✔ Microservices based backend systems ✔ Azure DevOps deployment pipelines ✔ Maintainable C# code ✔ Enterprise level architecture ✔ Long term support and scalability 🎯 I build business focused software not just code. My goal is to create scalable ASP.NET Core applications, Angular platforms, and REST APIs that improve performance, automate workflows, and solve real operational challenges. 📩 Need an ASP.NET Core Developer, Angular Developer, C# Developer, .NET Core Developer, REST API Developer, SQL Server Developer, or Azure DevOps Engineer? Let’s discuss your project.

⚡ I build scalable web apps, SaaS platforms, dashboards & APIs that are clean, fast, and built to last. 👋 Hi, I'm Saadullah, a Full-Stack Developer with 9+ years of experience helping startups and businesses turn ideas into production-ready products. I own projects end-to-end: from architecture and development to testing, deployment, and scaling. 🏆 Top Rated | 100% Job Success I focus on clean architecture, performance, and long-term maintainability, so what I build today keeps working as your business grows. ━━━━━━━━━━━━━━━━━━━━━━ 💼 Recent Work 🔹 Built and deployed a complete MVP (Peepeep), taking it from existing UI to a fully functional production app 🔹 Multi-vendor eCommerce platform built on the MERN stack 🔹 Fractional real-estate investment platform (Kudo Property) 🔹 Solved critical Azure App Insights & Service Bus integration bugs, delivered same day 🔹 Found and fixed a production bug no other developer could locate, saving the client's deadline ━━━━━━━━━━━━━━━━━━━━━━ 💻 What I Do 🔹 Frontend: React, Next.js, Angular, TypeScript 🔹 Backend: Node.js, NestJS, ASP.NET Core, .NET APIs 🔹 Architecture: REST APIs, Microservices, SaaS platforms 🔹 UI/UX: Responsive dashboards & web apps (Tailwind CSS, Material UI, Shadcn, Bootstrap) 🗄️ Databases & Cloud 🔹 PostgreSQL, MongoDB, MySQL, SQL Server 🔹 AWS, Azure, Docker, CI/CD pipelines 🔹 Authentication & security (JWT, OAuth2, RBAC) ━━━━━━━━━━━━━━━━━━━━━━ 🛠️ How I Work 1️⃣ Requirements analysis 2️⃣ Architecture planning 3️⃣ Development 4️⃣ Testing & deployment 5️⃣ Maintenance & scaling ━━━━━━━━━━━━━━━━━━━━━━ ✅ Why Clients Choose Me ⭐ Clear communicator: I keep you updated and ask the right questions ⭐ Reliable under deadlines: I deliver what I promise, on time ⭐ Solution-oriented: I find bugs and fixes others miss ⭐ I treat every project like it's my own, and my clients mention these qualities again and again in their reviews ━━━━━━━━━━━━━━━━━━━━━━ 📩 Whether you need a quick fix or a long-term partner to build something from scratch, let's talk. Send me a message describing your project and I'll reply within a few hours. 🚀 Let's build something solid together.

Full-stack developer with 5-8 years of experience building production web applications, APIs, and SaaS platforms across .NET, React, Node.js, and modern JavaScript/TypeScript stacks. I specialize in: 📌 .NET Core / C# backend development & API design 📌 React & Next.js frontends with clean, responsive UI 📌 Node.js/Express APIs and microservices 📌 SaaS platforms, admin dashboards, and internal tools 📌 AI-powered features using OpenAI and Claude APIs 📌 Cloud deployment (AWS/Azure), CI/CD, and Docker What I bring to a project: - End-to-end ownership: from architecture and database design through deployment and support - Clean, maintainable code with proper testing (xUnit, Jest, Mocha) - Clear communication and realistic timelines — no scope surprises - Experience across both enterprise .NET environments and fast-moving JavaScript/React stacks, so I can bridge legacy systems and modern apps Tech stack: Backend: C#, .NET Core, ASP.NET, Node.js, Express, Python Frontend: React, Next.js, TypeScript, JavaScript, Tailwind CSS Databases: SQL Server, PostgreSQL, MongoDB, Redis Cloud & DevOps: AWS, Azure, Docker, CI/CD, GitHub Actions APIs & Integrations: REST, GraphQL, Stripe, OpenAI, Claude API I'm currently building my Upwork history, but not my skills — I bring enterprise-grade engineering experience to every project, at a rate that reflects a growing profile. Let's talk about what you're building.

Need an AI application, scalable backend, or modern web/mobile app? I build reliable software that helps businesses automate processes, improve efficiency, and grow. With 3+ years of experience, I've delivered ERP systems, AI chatbots, e-commerce platforms, and mobile applications for businesses across manufacturing, retail, healthcare, and education. Services I Offer ✅ AI Chatbots & LLM Integration ✅ RAG & AI Automation ✅ Full Stack Web Development ✅ Backend API Development ✅ React Native Mobile Apps Tech Stack: Next.js, React, Node.js, React Native, Python, PostgreSQL, MongoDB, OpenAI, LangChain, AWS. I write clean, maintainable code, communicate clearly, and build software that's ready for production. Let's build a reliable, scalable solution that delivers real business value.