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Sean M.

Sean M.

MVP Engineer | Full-Stack .NET Developer (Azure, OpenAI, Automation)

I’m a senior full-stack engineer specializing in building scalable web applications, automation pipelines, backend services, and AI-powered integrations. I’ve spent the last several years architecting enterprise systems that support mission-critical operations at national scale. Most recently, I designed and deployed massive-scale data integrations across an entire national K–12 education system—supporting 20,000+ schools and 13 million students, with platforms used daily by tens of thousands of administrators. I bring that same level of care, clarity, and engineering rigor to every client project, big or small. What I can build for you: • Custom web applications using C#, .NET, Blazor, and modern JavaScript • API integrations, automation workflows, and backend services • AI-powered features using any model provider (Azure OpenAI, OpenAI, Anthropic, Llama, etc.) • Secure cloud architectures using Azure Functions, serverless patterns, and identity systems • Power BI and Microsoft ecosystem integrations (REST API, automation, identity/security workflows) • MVPs and internal tools to streamline business operations and validate new product ideas What you can expect when working with me: • Clear communication and consistent delivery • Clean, maintainable, scalable code • Ability to take a concept from idea → architecture → implementation → deployment • Ability to work solo or integrate seamlessly into an existing engineering team If you need a developer who can own a project end-to-end—or jump into an existing system and make it better—I can help.

🇺🇸Spokane, United States$70/hr90% JSS5.00 (3)Since Dec 2025

Earnings and projects

MRR
$330

Last 6 months ÷ 6

World#94,465 / 412k
🇺🇸Country#13,628 / 62.1k
Revenue, last 30 days
$0

Last 6 months: $2k

Total earnings
$3.6k
World#283,266 / 412k
🇺🇸Country#44,222 / 62.1k
Per project
$1.2k

$2k in the last 6 months

World#110,768 / 412k
🇺🇸Country#18,895 / 62.1k
Projects, last 6 months
1
100% fixed0% hourly
World#128,092 / 412k
🇺🇸Country#16,472 / 62.1k
Projects in all
3
100% fixed0% hourly
World#304,140 / 412k
🇺🇸Country#44,018 / 62.1k

Earnings, last 30 days

$3.6kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$3,500$3,550$3,600$3,650Oct 8Oct 23Nov 7

Skill rankings: Top 18% in RESTful API

Ranked by MRR among everyone on Upwork with the skill.

  1. #169Blazor656 freelancers · 🇺🇸 #13Top 26%
  2. #449ASP.NET Core2,272 freelancers · 🇺🇸 #36Top 20%
  3. #451Database Design2,161 freelancers · 🇺🇸 #84Top 21%
  4. #958Microsoft Power BI4,543 freelancers · 🇺🇸 #183Top 21%
  5. #1,084Microsoft Azure4,659 freelancers · 🇺🇸 #157Top 23%
  6. #1,102RESTful API6,064 freelancers · 🇺🇸 #82Top 18%
  7. #1,543ChatGPT5,588 freelancers · 🇺🇸 #170Top 28%
  8. #1,608C#8,348 freelancers · 🇺🇸 #223Top 19%