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Shyam Sundar S.
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Shyam Sundar S.

Office Add-ins & VSTO Expert | .NET C# Web | Cloud | AI Integration

🏆 10+ Years Experience | ⏱️ 12,000+ Upwork Hours | ⭐ 100% JSS | 🏅 AWS Certified Developer – Associate | 🏅 Microsoft Certified: Azure Fundamentals (AZ-900) | 🏅 Microsoft Certified: Azure Data Fundamentals (DP-900) | 🤖 AI Agent Development (OpenAI • Claude) | 🚀 300+ Projects Delivered I engineer secure, enterprise-grade Microsoft ecosystems. I specialize in bridging corporate data with modern workflows—transforming legacy infrastructures into intelligent environments using Microsoft 365 Copilot, Azure OpenAI, Semantic Kernel, and advanced AI Agents. If your enterprise needs to automate complex workflows, securely integrate custom AI tools, or modernize legacy systems without risking data leaks, I provide the senior architectural oversight to deliver. Enterprise Copilot & AI Integration Custom AI agents (Copilot, Claude, OpenAI APIs), Copilot Studio plugins connecting M365 Copilot to external databases, and secure Azure OpenAI / Semantic Kernel deployments — built to pass enterprise security review, not just demo well. Microsoft 365 & Graph API Architecture Deep Graph API integrations across Teams, Outlook, and SharePoint. Modern Office.js add-ins and legacy VSTO development for Excel/Word/Outlook. Power Automate workflows and custom connectors for teams retiring manual processes. Cloud Backend & Identity Security ASP.NET Core APIs and Azure Functions on .NET 8/9. OAuth2, OpenID Connect, and Microsoft Entra ID SSO. Legacy .NET Framework → modern .NET migrations. Cross-platform desktop via WPF, WinForms, and .NET MAUI. Availability: Europe time zone, with daily overlap into EST — real-time collaboration for US and EU teams. CERTIFICATIONS & TRUSTED CREDENTIALS • Microsoft Certified: Azure Fundamentals (AZ-900) • Microsoft Certified: Azure Data Fundamentals (DP-900) • AWS Certified Developer – Associate I work directly with enterprise stakeholders and technical teams to deliver clean architecture, strict data compliance, and long-term maintainability. Let’s connect to build your next-generation Microsoft ecosystem.

🇳🇵Kathmandu, Nepal$35/hr100% JSS4.86 (288)Since Nov 2013
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Earnings and projects

MRR
$153

Last 6 months ÷ 6

World#122,826 / 412k
🇳🇵Country#308 / 1,189
Revenue, last 30 days
$0

Last 6 months: $915

Total earnings
$403k

Billed in all: $410k

World#4,378 / 412k
🇳🇵Country#6 / 1,189
Per project
$1.3k

$458 in the last 6 months

World#105,724 / 412k
🇳🇵Country#290 / 1,189
Projects, last 6 months
2
50% fixed50% hourly
World#88,918 / 412k
🇳🇵Country#218 / 1,189
Projects in all
314

Across 356 contracts

56% fixed44% hourly
World#4,501 / 412k
🇳🇵Country#5 / 1,189

Earnings, last 30 days

$410kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$400k$405k$410k$415kOct 8Oct 23Nov 7

Skill rankings: Top 21% in Angular

Ranked by MRR among everyone on Upwork with the skill.

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  4. #174Google Chrome Extension660 freelancers · 🇳🇵 #3Top 26%
  5. #255Entity Framework1,047 freelancers · 🇳🇵 #1Top 24%
  6. #462Microsoft Power Automate1,387 freelancers · 🇳🇵 #1Top 33%
  7. #470AWS Development1,478 freelancers · 🇳🇵 #2Top 32%
  8. #538ASP.NET Core2,272 freelancers · 🇳🇵 #4Top 24%