Summary
Sean Mcnellis is a Principal Customer Engineer at Microsoft with 11+ years of deep expertise architecting and optimizing Dynamics 365 Customer Engagement, PowerPlatform, Dataverse, and Azure-based integrations. He blends hands-on development (C#, .NET, JavaScript, SQL) and scripting (PowerShell) with cloud-first patterns such as Azure Functions, Data Lake/Databricks, and serverless compute to solve complex performance and scale challenges for enterprise customers. Sean’s career traces back through escalations and field engineering, giving him rare end-to-end experience from triage and support to proactive architecture and automation. He is skilled at translating business requirements into maintainable CDS/PowerApps solutions and excels at cross-team coordination between product groups, partners, and accounts. Based in Minneapolis, he pairs deep Microsoft platform certifications and institutional knowledge with a practical focus on code and data optimization that prevents repeat incidents.
11 years of coding experience
23 years of employment as a software developer
Champlin Park High School
MCTS, MCITP, MCSE, MCSA, MCP, MCTS, MCITP, MCSE, MCSA, MCP at Microsoft Certifications
Management Information Systems (MIS), Business Management and Computer Science, Management Information Systems (MIS), Business Management and Computer Science at North Dakota State University