Hire the Best .NET Core Developers in Riyadh, SA

⭐ Top Rated | 92 Jobs Completed | 1,200+ Hours ⭐ ***Senior Software Engineer who builds production-ready AI systems*** 🚀 Building an AI product, LLM system, or agentic workflow — but not sure how to structure it so engineers can actually ship it? I bridge the gap between AI ideas and production reality, delivering system designs, RAG architectures, and .NET backends that teams can build from day one. 🚀 With 10+ years in .NET engineering and system architecture, and deep hands-on experience in LangChain, LangGraph, OpenAI, and vector databases, I help startups and enterprises go from concept to a working, scalable AI system — without the expensive rework that kills most AI projects ━━━━━━━━━━━━━━━━━━━━━━ 🔨 WHAT I BUILD ━━━━━━━━━━━━━━━━━━━━━━ → Agentic AI systems — multi-agent workflows, tool-calling, memory & orchestration (LangGraph, CrewAI, AutoGen) → RAG pipelines — end-to-end retrieval systems with Pinecone, Chroma, FAISS, Weaviate → .NET AI backends — ASP.NET Core APIs integrating LLMs, webhooks, and microservices → AI system documentation — SRS, SDS, UML, architecture diagrams developers can build from → System architecture design — scalable blueprints for SaaS, enterprise, and government platforms → Cloud AI integration — Azure OpenAI, AWS Bedrock, Cognitive Services ━━━━━━━━━━━━━━━━━━━━━━ 🛠️ TECH STACK ━━━━━━━━━━━━━━━━━━━━━━ LangChain · LangGraph · CrewAI · AutoGen · OpenAI GPT-4o · Claude API · Pinecone · NodeJS · Chroma · FAISS · Weaviate · ASP.NET Core · .NET 8 · C# · Azure AI · AWS Bedrock · SQL Server · REST APIs · UML · n8n ━━━━━━━━━━━━━━━━━━━━━━ 📁 RECENT PROJECT HIGHLIGHTS ━━━━━━━━━━━━━━━━━━━━━━ ▸ AI Voice Agent — Designed and built a real-time voice agent with n8n automation and LLM-driven conversation flows. Result: fully automated tier-1 customer interaction, zero human handoff. ▸ AI Hotel Booking Engine — Architected a GenAI booking assistant with intent recognition, RAG-based policy retrieval, and .NET backend. Result: Result: self-serve resolution replaced manual support for common booking queries ▸ AI Contract & Compliance Platform — LLM extraction + vector DB + automated audit trail for enterprise compliance checks. Result: replaced a fully manual contract review process. ━━━━━━━━━━━━━━━━━━━━━━ 🔄 HOW I WORK ━━━━━━━━━━━━━━━━━━━━━━ 1. Understand your goals — map business requirements to AI capabilities honestly 2. Design the architecture — full system blueprint before any code: data flows, agent roles, API contracts, guardrails 3. Build iteratively — clean implementation, tested at each milestone 4. Document and hand off — SRS, SDS, UML so your team can maintain and scale independently ━━━━━━━━━━━━━━━━━━━━━━ 📩 LET'S WORK TOGETHER ━━━━━━━━━━━━━━━━━━━━━━ Most AI projects fail not because of bad code — but because of unclear architecture and missing requirements. I help you get that right first. Message me with your project idea — I'll respond within 2 hours with an honest assessment and a clear path forward. 📩

Summary Senior Full-Stack Developer with +7 years of expertise crafting scalable, high-performance enterprise applications using .NET, Angular, and microservices. Adept at optimizing system efficiency, architecting solutions that drive business growth, and delivering cutting-edge software products. Projects A real-time tracking system built for the National Water Company (NWC), enabling consumers to track driver locations live during active orders. Key Contributions: * Developed a high-performance tracking engine, ensuring seamless real-time location updates. * Integrated Redis, OSRM, and SignalR to calculate optimal routes and estimate delivery times. * Implemented deviation detection, alerting users when drivers stray from assigned routes. * Enabled third-party app integration for automated route calculations and tracking. Tracking Engine Load Testing & Performance Simulation

I am a Microsoft Certified Azure Developer Associate (AZ-204) with 13+ years of experience in designing and delivering scalable, secure, and high-performance software solutions using .NET and Azure. I help businesses build and modernize enterprise-grade systems, including SaaS platforms, APIs, microservices architectures, and cloud-native applications. My focus is not just writing code, but delivering reliable systems that scale, perform, and remain maintainable in production environments. Over the years, I have worked across the full software lifecycle—from architecture and development to deployment and optimization—on complex systems involving authentication, role-based access control, ERP integrations, financial modules, and real-time processing systems. My core expertise includes: • ASP.NET Core, C#, Web APIs, Blazor • Azure Cloud (App Services, Functions, Service Bus, Cosmos DB, SQL, Key Vault) • Microservices architecture and distributed systems • Docker, Kubernetes (AKS), CI/CD pipelines (Azure DevOps, GitHub Actions) • SQL Server, PostgreSQL, MongoDB, Entity Framework Core • Secure authentication systems (JWT, OAuth, IdentityServer) I also actively work with modern development tools and AI-assisted workflows to improve delivery speed and code quality, including GitHub Copilot, Cursor AI, and OpenAI integrations. What I bring to your project: • Strong architectural thinking for scalable solutions • Fast understanding of existing complex codebases • Clean, production-ready, maintainable code • Clear communication and reliable delivery • Experience in both building new systems and improving legacy applications I am comfortable working on both short-term critical fixes and long-term enterprise projects, and I enjoy solving complex technical challenges that require deep system understanding. Let’s connect if you need a senior .NET/Azure engineer who can take ownership of backend systems, cloud architecture, or full-stack enterprise development.

Technical Skills & Experience: • ASP.NET Core – 5+ years (Expert) • ASP.NET MVC – 5 years (Expert) • Angular – 4 years (Advanced) • JavaScript / TypeScript – 4 years (Advanced) • CSS / HTML – 5 years (Good) • IIS Server Deployment – 5 years (Expert) • Desktop Application Development – 6 years (Expert) • Microsoft SQL Server – 7+ years (Expert) • Database Optimization – 4 years (Expert) • Accounting Systems Development – 5 years (Advanced) • ERP Module Integration – 5 years (Advanced) • Payment & Invoice Automation – 5 years (Advanced)

Summary I have a versatile hands-on experience in software development for more than 15 years working on a variety of projects from conception to delivery. I am conversant in a wide range of technologies, database systems,programming languages and frameworks, front end and back end. I follow the latest industry trends with great interest. My approach is methodical but creative, and I always look to code to the highest standards possible. I am a confident communicator and comfortable working either independently or as a part or a leader of a team.

Need to modernize a legacy .NET system, fix slow APIs, or migrate to Azure cloud? I've helped Healthcare, Fintech, and Government enterprises achieve 50-95% performance improvements — and I can do the same for your project. I'm Waleed — a Solution Architect with 12+ years of hands-on experience building and modernizing enterprise .NET systems. I don't just design architectures on whiteboards; I implement them. What I've delivered recently: → Migrated a healthcare middleware platform (.NET 3.1 → .NET 8), cutting API response times from 20 minutes to 7 seconds — a 95% improvement across 25+ services. → Led modernization of J.P. Morgan's debtor management system (.NET Framework 4.7 → .NET 6), improving scalability for multi-million dollar transaction processing. → Migrated legacy WCF services to .NET 6 REST APIs, reducing server load by 50%+ with full observability via centralized logging. My core expertise: .NET Core/.NET 6-8, C#, ASP.NET, Entity Framework Azure (AD, Functions, DevOps CI/CD, Queues, Service Bus) API design, Kong API Management, microservices architecture Healthcare IT (EHR, HIPAA, SFDA integrations) SSO, OAuth2, OpenID Connect, JWT security Docker, Redis, RabbitMQ, SQL Server, Oracle I'm a great fit if you need: Legacy .NET modernization to cloud-native architecture Enterprise API development or integration (EHR, ERP, government) Performance optimization for slow systems Secure, scalable microservices with proper authentication Based in Riyadh, Saudi Arabia — available for remote work and on-site consulting. Send me a message with your challenge, desired outcome, and timeline. I'll respond within 24 hours with initial thoughts. I'll review and respond within 24 hours with initial thoughts and next steps. --- **Certifications:** ✓ Post Graduate Program in AI & Machine Learning (Caltech) ✓ Microsoft Certified dot Net Specialist ✓ AZ-900: Microsoft Azure Fundamentals (Udemy) ✓ AZ-204: Developing Solutions for Microsoft Azure (Udemy) ✓ REST API Management using Kong 3 (Udemy) ✓ Microservices: Design Pattren