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I'm one of the top social multiplayer game developers on Upwork. I only work with serious employers who are looking to make professional grade projects. If this is you, please get in touch with me and I'll provide you a list of my full portfolio for your review.

Passionate about coding and problem solving, possessing over 10 years of experience & proven success in Technical Support and Customer Service, with a strong ability to deliver efficient user focused solutions. Alongside extensive experience in AIR/Flex apps development and its different frameworks which allow me to produce cross platforms applications. I also have worked with several APIs & ANEs. I also have a good experience in FFmpeg which is the magic to edit and manipulate media files. I have a good experience and practices with timeline animation and tweens with Adobe Animate / Flash also some good practices with frame by frame animation and export it as swf or HTML5 canvas. I have gained this experience during the past 9 years since I had made and participated in several Adobe Air projects mostly were games, puzzles, educational, images & video processing and some utilities apps.

I am a Microsoft Office Add-ins Expert with 5+ years of professional experience designing, developing, and deploying end-to-end Office 365 Web Add-ins for Outlook, Excel, Word, PowerPoint, and OneNote. I help startups, enterprises, and SaaS companies build secure, scalable, and cross-platform Office Add-ins, from idea to successful Microsoft AppSource publication. What I Specialize In: 🔹 Custom Office Add-ins Development High-performance Office Web Add-ins, including Task Pane, Command, and Content Add-ins, built using React, TypeScript, Fluent UI, HTML5, CSS3, and JavaScript. All solutions are fully optimized for Windows, macOS, Office Online, iPad, and mobile. 🔹 Microsoft Graph & API Integrations Seamless integrations with Microsoft Graph API, Outlook Inspector, SharePoint, OneDrive, Firebase, Jira, and third-party platforms. I create powerful workflows using REST APIs, OAuth2, JWT authentication, and AI-powered features. 🔹 Secure Backend & SSO Integration Robust backend systems using Node.js (Express, NestJS) and Python (FastAPI, Django) with Single Sign-On (SSO) via Microsoft Identity. I follow best practices for security, performance, background tasks, and data protection. 🔹 AppSource Publishing & CI/CD Complete ownership of the Office Add-in lifecycle, including: ✓Office Add-in manifests & certificates ✓Automated CI/CD using Azure DevOps, GitHub Actions, Docker ✓Microsoft AppSource submission, validation, and publishing ✓Ongoing maintenance and version upgrades Technical Expertise Office Add-ins Developer, Microsoft Office 365 Add-in Expert, Outlook Add-in, Excel Add-in, Word Add-in, PowerPoint Add-in, Office Web Add-ins, Task Pane Add-ins, Microsoft Graph API, SSO Integration, Fluent UI, React, TypeScript, Node.js, FastAPI, Azure DevOps, AppSource Publishing, Cross-Platform Office Add-ins. Why Work With Me? ✓ End-to-end delivery (frontend, backend, deployment) ✓ Enterprise-grade security & compliance ✓ Clean, scalable, and maintainable code ✓ Clear communication and long-term support If you’re looking for a reliable Microsoft Office Add-ins Developer who can deliver a production ready, AppSource-approved solution, let’s connect and build something powerful together.

I am committed to delivering the finest application development solutions to customers worldwide. Leveraging advanced frameworks and the latest technologies, I build top-notch applications. With over six years of professional experience in web and mobile development, I ensure high-quality results for your projects. +Front-End Development: Technologies: HTML, CSS, JavaScript, and modern frameworks like React, Angular, or Vue.js. 🖥️ Skills: User interface (UI) design, responsive design, accessibility, performance optimization, and cross-browser compatibility. 🎨 +Back-End Development: Technologies: Server-side languages such as Node.js,, or asp.net frameworks⚙️ Skills: Database management (SQL and NoSQL), server, network, and hosting environments, API development (RESTful and GraphQL), authentication and security, and server-side logic. 🔒 +React Native Development: Cross-Platform App Development Wearable Device App Development Third-Party API Integration UI Development Using Material Design Transition Native App to Cross-Platform Using React Native App Version Updates Security Enhancements +Flutter Development: Cross-Platform App Development App Transition to Cross-Platform Application Integration with AWS Microservices Performance Optimization Security Enhancements

Top-rated Full-Stack Developer with 12+ years delivering secure, scalable solutions that produce measurable business outcomes for global clients. What clients achieved with my work Reduced login friction and support costs by up to 80% after SSO rollouts (SAML, OAuth2, OIDC), improving user adoption and lowering helpdesk tickets. Cut user onboarding time from days to minutes via centralized identity flows and automated provisioning. Increased team productivity up to 40% with custom Office and Google Workspace add-ins that automate repetitive work and integrate third-party systems. Strengthened security and compliance (SOC2, ISO, GDPR) by implementing hardened IAM, PKI, and cryptographic document signing. Scaled multi-tenant SaaS to thousands of organizations with sub-second auth latency and 99.9% uptime. Accelerated go-to-market and recurring revenue growth by delivering modular auth and API platforms. Selected results & experience 100+ SSO integrations across Okta, Auth0, Azure AD/Entra ID, Google Workspace, AWS Cognito, Ping Identity, ADFS, Salesforce. Architected a multi-tenant Identity Broker (sso.id) enabling customers to connect multiple identity providers in minutes, boosting partner integrations and conversions. Built 15+ Office & Google Workspace add-ins (Word, Excel, Outlook, PowerPoint, Gmail, Sheets, Docs), saving teams hundreds of person-hours per month. Developed 20+ SaaS platforms from MVP to enterprise scale with AI automation and APIs (YouTube, AWS, Firebase, Microsoft Graph), improving engagement and monetization. Implemented PKI, PDF signing, and blockchain anchoring to reduce fraud risk and streamline audits. Technical stack Protocols: SAML, OAuth2, OpenID Connect, SCIM, JWT Platforms: Okta, Auth0, Azure AD/Entra ID, Google Workspace, AWS Cognito, Ping Identity, ADFS, Salesforce Frontend: React, Next.js, Vue, Angular, TypeScript Backend: .NET 8 / C#, Node.js, Python, PHP (Laravel, Django) Databases: MySQL, Oracle, MongoDB Specialized: PKI, cryptography, PDF signing, blockchain-secured documents Why hire me ROI-focused: $1.2M+ earned across 200+ projects with measurable improvements in security, productivity, and time-to-market. Business-first engineering: I reduce operational costs, accelerate onboarding, and unlock new revenue channels. Long-term partner: responsive, reliable, and focused on evolving systems as your business grows. Tell me about your auth, add-in, or SaaS challenge and I’ll outline how we can reduce risk, save time, and increase adoption.

15+ years in Software Development Available for 40 hrs/wk Excellent references from CEOs of the companies I worked for/with Able to bring a product to the market from inception, through specification, architecture, design, and implementation and testing. Seeking for software development projects in the following areas: - Desktop applications - Client/Server systems - Web applications Technologies and Frameworks: - C++, C#/VB.NET, Java, React, Node.js/React.js, MFC/ATL/COM, Office OM/JS API, MSGraph, WinForms, WPF, DevExpress, NetAdvantage Infragistics, XML, JSON, WebServices (WCF, RESTFull), SQL, Entity Framework, sockets (.NET and Winsock), JQuery/AngularJS/Bootstrap, etc