Hire the Best Microsoft Visual Studio Specialists

I’m a Top Rated Plus .NET Back-End Developer with 14+ years of experience and over $1M in Upwork earnings, specializing in robust, scalable, and high-performance systems built on the Microsoft stack. I’ve delivered enterprise-grade solutions to clients across many countries, helping businesses in e-commerce, SaaS, healthcare, and logistics transform their backends into powerful, efficient engines that drive growth and reliability. My focus is always on your business outcomes in clean code, maintainable architecture, and consistent delivery that enhances performance and ROI. 1. Advanced .NET Technologies: Expert in C#, .NET Core (including .NET 6/7/8), ASP.NET MVC, and Web API for building secure, scalable RESTful APIs and microservices architectures. I ensure your applications are fast, maintainable, and ready for future expansion. 2. Cloud & DevOps Expertise: Architect and deploy cloud-native solutions using Microsoft Azure (App Services, Functions, Azure SQL, Key Vault) and AWS. I design CI/CD pipelines, use Docker containers, and implement microservices and serverless functions to achieve agility and scalability. 3. Database & Performance Optimization: Experienced in SQL Server and Entity Framework, I design efficient schemas, write optimized queries, and use caching and indexing strategies to maximize speed and responsiveness. My focus: applications that run smoother and scale effortlessly. 4. Business-Focused Results: I deliver automation, cost efficiency, and measurable performance gains. For instance, I’ve helped eCommerce clients cut API response times by over 60% and enterprises scale their systems without increasing infrastructure costs through smarter architecture and optimized code. 5. Reliable Communication & Delivery: Native-level English fluency ensures clear communication across time zones. I provide transparent progress updates, honor deadlines, and approach every engagement, whether a sprint or a long-term collaboration, with reliability and professionalism. -------------------------------------------------------------------------------------------------------------------- GoHighLevel Certified Expert Troubleshooting & Automation Specialist 100% ready to TAKE ACTION on all YOUR Go High Level needs | Let’s Connect Now! I love working on challenging GoHighLevel Projects, micro & macros, and looking forward to a video/phone call to assess your needs whenever you need me, seven days a week, 4 hrs a day! Helping businesses scale to their highest level. The true power of GoHighLevel is your business growth. Helping businesses achieve success like you deserve their max potential by leveraging GoHighLevel marketing & automation. QA & Testing Expertise Includes: - Manual Testing (Functional, Regression, Smoke, Sanity, UAT) - Automation Testing using Selenium, Cypress, and Playwright - API Testing (Postman, Swagger, REST Assured) - Performance & Load Testing with JMeter - Test Case Design, Test Execution & Defect Reporting - End-to-End QA Process Setup and CI/CD Integration - Cross-Browser & Cross-Platform Testing for Web and Mobile Apps If you have a troubleshooting need or are interested in automating your operation for further growth, then I look forward to hearing more from you. You’ll appreciate my work ethic, professionalism, and ability to navigate complex tasks with excellent project follow-through. Whether you’re a startup building your next SaaS, an enterprise modernizing legacy systems, or a company scaling your platform, I’m here to deliver a back-end solution that’s secure, fast, and built for the future. Certified GoHighLevel Consultant working remotely, helping brands launch, re-launch & scale online, leveraging the Go HighLevel Software CRM system/tools. Go High Level is constantly updating its software, and my part-time hobby is remaining on the leading edge and testing new features while sharing them out to clients immediately for more effective results. I’m happy to work on any challenging GoHighLevel Projects, micro or macros, and looking forward to a video/phone call to assess your needs whenever you need me, seven days a week, 4 hrs a day! What I Offer: - Platform Setup & Configuration - Marketing Automation - Sales Pipeline Creation - CRM Implementation - SMS & Email Campaigns - Booking & Appointment System If you’re interested in our profile and experience, please feel free to reach out if you’d like to discuss anything further. Available to get hired on a Part-time, Full Time and Dedicated Basis Let’s talk about your goals and explore how I can help you bring your .NET project to life. Message me anytime to get started.

🎯 𝗪𝗼𝗿𝗸𝗲𝗱 𝘄𝗶𝘁𝗵 𝗠𝗲𝗿𝗰𝗲𝗱𝗲𝘀-𝗕𝗲𝗻𝘇, 𝗣𝗼𝗿𝘀𝗰𝗵𝗲, 𝗧𝗼𝘆𝗼𝘁𝗮 & 𝗙𝗼𝗿𝗱. 🇩🇪 𝗚𝗲𝗿𝗺𝗮𝗻 𝘄𝗼𝗿𝗸 𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 𝗼𝗻-𝘁𝗶𝗺𝗲 𝗲𝘃𝗲𝗿𝘆-𝘁𝗶𝗺𝗲 🤝 𝗖𝗼𝗺𝗽𝗲𝘁𝗶𝘁𝗶𝘃𝗲 𝗽𝗿𝗶𝗰𝗶𝗻𝗴. ✅ 𝟭𝟭+ 𝘆𝗲𝗮𝗿𝘀 𝗽𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲. 𝟮𝟬𝟬+ 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱. 🇺🇸 𝗨𝗦 & 🇪🇺 𝗘𝘂𝗿 𝘀𝘁𝗮𝗿𝘁𝘂𝗽 𝗰𝗹𝗶𝗲𝗻𝘁 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻. ☑️ <𝟴 𝗵𝗼𝘂𝗿 𝗿𝗲𝘀𝗽𝗼𝗻𝘀𝗲 𝘁𝗶𝗺𝗲𝘀, 𝟳 𝗱𝗮𝘆𝘀 𝗮 𝘄𝗲𝗲𝗸. 🛠 𝟮-𝗺𝗼𝗻𝘁𝗵 𝘀𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗯𝘂𝗴 𝘄𝗮𝗿𝗿𝗮𝗻𝘁𝘆 𝗼𝗻 𝘄𝗼𝗿𝗸. 🥋 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗲𝗱 𝗟𝗲𝗮𝗻 𝗦𝗶𝘅 𝗦𝗶𝗴𝗺𝗮 𝗕𝗹𝗮𝗰𝗸 𝗕𝗲𝗹𝘁 (𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝘄𝗶𝗹𝗹 𝗯𝗲 𝗺𝗮𝗻𝗮𝗴𝗲𝗱 𝗲𝘅𝗰𝗲𝗽𝘁𝗶𝗼𝗻𝗮𝗹𝗹𝘆 𝘀𝗺𝗼𝗼𝘁𝗵𝗹𝘆) Hi, I’m Muhammad! You can think of me as your go-to expert to design and develop the firmware and software for all types of hardware devices and products. I cover both on-device needs and their matching companion apps on desktop and mobile. Beyond the software, I work in person with a small, talented team that can support every aspect of hardware development and mechanical design as well. When you work with me, you get a one-stop shop for bringing your product to market. 📞 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝗼𝗿 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝘁𝗼 𝗯𝗼𝗼𝗸 𝗮𝗻 𝗲𝗮𝗿𝗻𝗲𝘀𝘁𝗹𝘆 𝗵𝗲𝗹𝗽𝗳𝘂𝗹 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝗰𝗮𝗹𝗹 𝘁𝗼 𝗰𝗵𝗮𝘁 𝗮𝗯𝗼𝘂𝘁 𝗯𝗿𝗶𝗻𝗴𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝘁𝗼 𝗹𝗶𝗳𝗲. ⭐️⭐️⭐️⭐️⭐️ ❝ Muhammad and his team did an absolutely fantastic job. They are the real deal. Not only did they complete everything I asked for to build me a very complicated machine, they constantly added in their own innovations and modifications to improve the performance of the device. It was extremely easy to work with them, and they are extremely professional and true experts in their fields. I proposed many changes during the development of the product, and they were able to accommodate my requests and provide valuable insight if changes weren’t needed or were too costly. They are backed by an engineering firm with specialists in so many fields, so we never needed to outsource work to an outside firm. Their firm felt like a one-stop shop that had all the resources needed to build a complicated mechanical product. I really could not imagine that many other engineer freelancers would have access to the resources needed to build my machine, so I am very grateful I found Muhammad instead of wasting my time and money with other freelancers. Do not hesitate to hire him. ❞ 🗣𝙏𝙖𝙣𝙫𝙞𝙧 𝙆𝙖𝙗𝙞𝙧 - 𝘾𝙀𝙊 - 𝘼𝙪𝙩𝙤𝙈𝙚𝙖𝙡 𝘿𝙮𝙣𝙖𝙢𝙞𝙘𝙨 Highlights of the software skills I support my clients with include: ☑️ Hardware Device Firmware Development - ☑️ Software Development - Software Architecture Design ☑️ Desktop App Development - Desktop Software Development ☑️ Printed Circuit Boards - PCB - Circuit Design - Altium - KiCAD - Eagle ☑️ Controllers - Raspberry Pi - Nordic (NRF) - Espressif - ESP32 - ESP8266 - STM - NXP - TI - Nvidia Jetson ☑️ Programmable Circuit Boards - Microcontroller Projects - Integrated Development Environment (IDE) ☑️ Electronic Design Automation - EDA - Eagle ☑️ Mobile App Development For Hardware Devices - Flutter (Hybrid) - Swift (Apple iOS) - Java/Kotlin (Android) ☑️ IoT Development ☑️ Embedded Systems - Embedded Engineering - C - C++ - Python - Rust - RTOS - Zephyr ☑️ Web Technologies - HTML5 - JavaScript - Node.js - RESTful APIs - PyQt ☑️ Tools & IDEs - Visual Studio - STM32CubeIDE - Eclipse - Keil Product Examples I’ve Worked On Include: 🔹 Consumer Electronics - Headphones - Smartwatches 🔹 Kitchen Appliances 🔹 Medical & Health - Medical Devices 🔹 Vending Machines - Retail 🔹 Automotive Tech 🔹 IoT - Internet of Things 🔹 Gadgets 📞 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝗼𝗿 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝘁𝗼 𝗯𝗼𝗼𝗸 𝗮𝗻 𝗲𝗮𝗿𝗻𝗲𝘀𝘁𝗹𝘆 𝗵𝗲𝗹𝗽𝗳𝘂𝗹 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝗰𝗮𝗹𝗹 𝘁𝗼 𝗰𝗵𝗮𝘁 𝗮𝗯𝗼𝘂𝘁 𝗯𝗿𝗶𝗻𝗴𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝘁𝗼 𝗹𝗶𝗳𝗲. Thanks for taking the time to learn a bit more about me. Look forward to supporting you with your product soon! Muhammad Usman Sardar ⭐️⭐️⭐️⭐️⭐️ ❝ Working with Muhammad has been an absolute pleasure! He is incredibly skilled, reliable, and went above and beyond to deliver high-quality work on time. He communicated clearly throughout the project, understood the requirements perfectly, and handled every challenge with professionalism and a positive attitude. The end result exceeded expectations, and I’m truly grateful for his contribution. I highly recommend Muhammad to anyone looking for a talented and trustworthy developer. ❞ 🗣 𝘾𝙝𝙡𝙤𝙚 𝙑𝙞𝙡𝙙𝙚 - 𝘾𝙀𝙊 - 𝙏𝙚𝙙 & 𝘾𝙤.

🟢 𝐀𝐕𝐀𝐈𝐋𝐀𝐁𝐋𝐄 𝐓𝐎𝐃𝐀𝐘 Outdated systems slowing you down? I help teams 𝗺𝗼𝗱𝗲𝗿𝗻𝗶𝘇𝗲 𝗹𝗲𝗴𝗮𝗰𝘆 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀, 𝗯𝘂𝗶𝗹𝗱 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀, 𝗮𝗻𝗱 𝗹𝗲𝘃𝗲𝗿𝗮𝗴𝗲 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁’𝘀 𝗳𝘂𝗹𝗹 𝘁𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝘀𝘁𝗮𝗰𝗸 I’m Ishrar, 𝗮 𝗦𝗲𝗻𝗶𝗼𝗿 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁 & 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 𝟭𝟲 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 in designing, developing, and deploying both desktop and web applications. Over the years, I’ve delivered everything from enterprise-grade .NET applications to cloud-native Azure solutions, database-driven systems, and modern microservices. ✅ 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 🔹𝗕𝗮𝗰𝗸𝗲𝗻𝗱: .𝗡𝗘𝗧 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸, .NET Core, ASP.NET MVC, C#, VB.NET, REST & SOAP APIs 🔹𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: Razor, WinForms, responsive & multithreaded applications 🔹𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: Microsoft Azure (Functions, SQL Server, CosmosDB, Vault, AD, Microservices, EntraID), CI/CD 🔹𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀:SQL Server, MySQL, MongoDB, CosmosDB 🔹𝗔𝗣𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: Internal & external services, enterprise systems 🏆𝐏𝐫𝐨𝐯𝐞𝐧 𝐑𝐞𝐬𝐮𝐥𝐭𝐬 🔹Designed and deployed scalable enterprise applications serving thousands of users 🔹Optimized database systems for performance, reliability, and scalability 🔹Integrated complex internal/external services (REST/SOAP) seamlessly 🔹Helped businesses transition from legacy systems to cloud-first architectures 💬 Let’s connect! Share your project goals, and I’ll provide a few tailored solution ideas or run a quick audit of your current stack—no strings attached.

With 8+ years of extensive experience in software development, I specialize in building high performance, scalable, and user centric WEB and DESKTOP APPLICATIONS using modern technologies. My core expertise lies in Microsoft based development (.NET, C#, ASP.NET Core/MVC, Blazor), combined with modern frontend frameworks like React, Angular, and mapping/GIS tools including ArcGIS. I also have strong proficiency in working with a variety of databases, including SQL Server, PostgreSQL, Supabase, MySQL, and MongoDB; ensuring robust data modeling, performance tuning, and secure data handling across applications. Whether you need an enterprise-grade backend, interactive frontend interfaces, geospatial data integration, or a reliable full-stack partner, I bring the right blend of technical skill, professionalism, and client focused service. - Why Clients Hire Me: A. Proven Track Record – Top Rated, $100K+ earnings, and 90%+ long-term client retention. B. Strict Deadline Adherence – I consistently deliver on time, without compromising quality. C. Scalable, Clean Code – Maintainable, modular codebase following best practices. D. Exceptional Communication – Transparent, responsive, and proactive collaboration. - Technical Expertise: a. Backend: C#, ASP.NET Core/MVC, Web API, Node.js, Express.js, Blazor, OWIN, IIS b. Frontend: React, Angular, Razor, Next.js, Vue.js, Typescript, Bootstrap, Tailwind CSS, Kendo UI, jQuery c. GIS/Mapping: ArcGIS JavaScript API, ArcGIS REST services integration d. Databases: SQL Server, PostgreSQL, MySQL, Supabase, MongoDB e. Cloud/DevOps: Azure DevOps, AWS (S3, EC2, Lambda), GitHub Actions, Docker f. APIs & Integrations: REST, GraphQL, SOAP/WSDL, SSO/Auth systems Primary Skills (Core Stack): - Full Stack Developer - .NET Developer - ASP.NET Core Developer - C# Backend Developer - React.js Developer - Angular Developer - Blazor Developer - MAUI App Developer - .NET MAUI Developer - Web API Developer - Entity Framework Core - Razor Pages - SignalR Developer Frontend Technologies: - JavaScript Developer - TypeScript Developer - HTML5 / CSS3 / SCSS - Responsive Web Design - Tailwind CSS - Bootstrap - React Hooks - Angular Material - RxJS - Material UI (MUI) Backend / Server-Side - ASP.NET Core Web API - RESTful API Development - Microservices Architecture - Clean Architecture - Dependency Injection - Middleware in .NET - LINQ / EF Core - SQL Server / PostgreSQL / MySQL - IdentityServer / JWT Authentication Version Control & Tools: - Git / GitHub / GitLab / Bitbucket - Azure DevOps Pipelines - Jira / Trello / ClickUp - Visual Studio 2022 - Postman / Swagger - Figma to React/Angular Testing & Quality: - Unit Testing in .NET (xUnit, MSTest) - Jest for React - Cypress / Selenium - Playwright - Code Review & Refactoring Cloud & DevOps: - Azure Developer - AWS Developer - Azure App Services - Azure Functions - AWS Lambda - CI/CD (GitHub Actions, Azure DevOps) - Docker - Kubernetes - Cloudflare I work with different technologies and like complex and long-term projects, my experience allows me to solve complex problems related to the design of the project during the negotiation phase. I prefer long-term cooperation with the client and therefore try to provide maximum comfort and quality.

⭐⭐⭐⭐⭐ Top Rated | Senior .NET Desktop, ASP.NET Core, SQL Server, QuickBooks & SAP Crystal Reports Expert | 10+ Years I help businesses build, modernize, and optimize desktop applications, web systems, databases, and reporting solutions using Microsoft technologies. With over 10 years of experience, I've delivered enterprise software for manufacturers, wholesalers, accounting firms, and service businesses worldwide. I specialize in solving complex technical challenges—from fixing slow applications and optimizing SQL Server databases to integrating QuickBooks Desktop, developing SAP Business One Crystal Reports, and building complete ERP solutions. Whether you're starting a new project or maintaining a legacy system, I focus on clean architecture, performance, and long-term maintainability. 🔹 Core Expertise Desktop Development • C & VB.NET WinForms • DevExpress UI • Windows Services • Multi-threaded Applications • Modern Windows 11 UI • Desktop Performance Optimization Web Development • ASP.NET Core • RESTful Web APIs • Third-party API Integrations • OAuth Authentication • JSON & XML Processing Database Development • Microsoft SQL Server • T-SQL • Stored Procedures • Performance Tuning • Query Optimization • Index Optimization • Database Design • Data Migration • Import & Export Automation SAP Business One & Crystal Reports I have developed hundreds of Crystal Reports for SAP Business One, including: • Sales Orders • Purchase Orders • A/R & A/P Invoices • Delivery Notes • Inventory Reports • Production Reports • Financial Reports • Customer Statements • Aging Reports • Barcode Labels • Custom Business Reports I also specialize in: • PLD to Crystal Report Conversion • Crystal Report Customization • SQL-Based Reports • Report Optimization • Complex Formulas • Parameters & Subreports QuickBooks Desktop Integration • QBFC SDK • Customer Synchronization • Order Synchronization • Invoice Synchronization • Inventory Synchronization • Price Updates • Windows Background Services • Custom Accounting Integrations ERP & Business Automation • Inventory Management • ERP Development • Workflow Automation • Business Process Automation • Dashboard Development • Reporting Solutions Hardware Integration • Serial Port (RS232/RS485) • Bluetooth Communication • Industrial Equipment • Machine Automation • Real-time Monitoring Systems Legacy Modernization • VBA to .NET Migration • Excel Macro Conversion • Legacy Application Refactoring • Desktop Application Upgrades 🔹 Recent Projects ✔ Developed a complete ERP solution for the diamond industry handling high-volume daily transactions. ✔ Designed and developed hundreds of SAP Business One Crystal Reports and converted numerous PLD reports into Crystal Reports. ✔ Built an unattended QuickBooks Desktop synchronization application using the QBFC SDK to automatically synchronize customers, orders, invoices, inventory, and pricing. ✔ Developed a real-time manufacturing dashboard monitoring production across 15+ plants. ✔ Implemented a fully compliant Saudi Arabia ZATCA Phase 2 e-invoicing solution. ✔ Built coffee roaster control software integrating hardware through Serial Port and Bluetooth communication. ✔ Developed an automatic desktop application updater with database migration support. ✔ Migrated legacy Excel/VBA business systems into scalable .NET desktop applications. 🔹 Why Clients Hire Me ✔ 10+ years of professional experience ✔ Top Rated on Upwork ✔ Strong expertise across Desktop, Web, Database, Reporting, and Enterprise Integration ✔ Clean, maintainable, and scalable code ✔ Fast problem diagnosis and performance optimization ✔ Direct communication with the developer doing the work ✔ Reliable delivery and long-term support 🔹 Technologies Languages: C, VB.NET, SQL (T-SQL) Desktop: WinForms, DevExpress Web: ASP.NET Core, REST APIs Database: Microsoft SQL Server Reporting: SAP Business One, Crystal Reports, RDLC Accounting: QuickBooks Desktop (QBFC SDK) Other: REST APIs, JSON, XML, OAuth, Windows Services, Barcode Systems, Serial Communication, Bluetooth, VBA Modernization 📩 If you're looking for a developer who can build, optimize, or modernize your desktop application, SQL Server database, Crystal Reports, QuickBooks integration, or ERP system, I'd be happy to discuss your project. Send me a message, and let's build a reliable solution that scales with your business.

I build production-ready Microsoft 365 Add-ins for Outlook, Excel, Word, and PowerPoint using Office.js, VSTO, SSO, Microsoft Graph API, SharePoint, and AI. I help businesses automate email, document, spreadsheet, and presentation workflows directly inside Microsoft Office with secure authentication, clean UI, backend integration, and deployment support. 🧩 Office Addins Platform Architecture & Development • Office Add-in development using Office.js and VSTO • Cross-platform solutions for Web, Windows, Mac, and Office Online • SharePoint Framework (SPFx) development for custom web parts and extensions • Microsoft Graph API, SharePoint, and OneDrive integrations • Custom Ribbon, Task Pane, and Office UI extensions • Legacy VBA migration to modern Office.js architecture • ChatGPT and Claude-augmented Office Addins for smart email and document workflows 🔐 Authentication, Security & Performance • OAuth2, Auth0, MSAL, Azure AD / Entra ID SSO • Secure enterprise-level API integration for Office ecosystems • Performance optimization for large-scale Office Add-ins • Secure data handling across Microsoft 365 and cloud systems • CRM integrations with Salesforce, HubSpot, and Dynamics 365 🤖 AI, Backend & Full-Stack Support • AI integration using OpenAI and Claude APIs • AI automation for emails, documents, summaries, and data extraction workflows • Backend APIs using Node.js, ASP.NET Core, C#, and Python • Databases: SQL Server and MongoDB • Frontend: React, TypeScript, and Fluent UI • Cloud/DevOps: Azure, AWS, Docker, and CI/CD Why me: ✔ Deep experience with Office.js, VSTO, Graph API, SharePoint, SSO, and AppSource-ready delivery ✔ Strong understanding of Outlook, Excel, Word, and PowerPoint host limitations ✔ Ability to handle full product flow: add-in UI, backend APIs, authentication, deployment, and support ✔ Focus on secure, scalable, long-term Microsoft 365 solutions 📨 Send me a message if you need a reliable Microsoft 365 add-in, Office automation tool, or AI-powered workflow built the right way.