Marion Owen
Verified Expert in Engineering
Microsoft Power Platform and SharePoint Developer
Kennesaw, GA, United States
Toptal member since August 8, 2025
Marion is a senior Microsoft Power Platform and SharePoint consultant with 15+ years of experience. He delivers scalable solutions for organizations like the CDC, Booz Allen Hamilton, and INPO. Marion specializes in workflow automation, SharePoint migrations, and building intuitive business apps that streamline operations and enhance productivity in SharePoint or Microsoft Power Platform.
Portfolio
Experience
- SharePoint - 15 years
- Microsoft Power Automate - 12 years
- JavaScript - 12 years
- Nintex Workflow - 12 years
- SharePoint Migration - 10 years
- Nintex Forms - 10 years
- Microsoft Power Apps - 10 years
- ShareGate - 7 years
Preferred Environment
Windows, SharePoint, Microsoft Power Apps, Microsoft Power Automate, ShareGate, PnP PowerShell
The most amazing...
...project I've led was migrating 200+ legacy Nintex workflows to Microsoft Power Automate for the CDC under a deadline and with zero data loss.
Work Experience
SharePoint and Power Automate SME
CDC
- Spearheaded the migration of 200+ legacy Nintex workflows to Microsoft Power Automate, ensuring compliance and maintaining data integrity under tight deadlines.
- Architected and implemented solutions combining Microsoft Power Automate, Power Apps, and SharePoint Online to modernize outdated business processes.
- Mentored junior developers in Microsoft Power Platform best practices, including ALM, API integration, and performance optimization.
- Streamlined internal operations by automating reporting processes using Power BI, reducing manual effort by 40%.
- Acted as a key liaison between technical teams and stakeholders to ensure alignment and on-time delivery.
SharePoint/.NET Consultant
Booz Allen Hamilton
- Consolidated and optimized multiple SharePoint 2013 sites, eliminating redundant content and improving navigability.
- Rebuilt legacy workflows with Microsoft Power Automate, reducing maintenance complexity and increasing user adoption.
- Implemented secure solutions using Graph API and REST to integrate third-party platforms with Microsoft 365.
- Designed and executed migration strategy, reducing overall site sprawl by 60%.
SharePoint and Power Platform Developer
CDC
- Built reusable SharePoint 2013 components and dashboards to simplify departmental reporting across agencies.
- Developed and deployed mobile-friendly interfaces using jQuery, REST, and Microsoft Power Platform.
- Reduced cross-departmental data silos by integrating custom apps and workflows.
- Collaborated with third-party vendors to research, implement, and support integrated systems.
- Provided Tier 2 and 3 service desk support, resolving configuration issues and documenting fixes for reuse.
Software Engineer
Institute of Nuclear Power Operations
- Architected and delivered a SharePoint 2010-based BI portal that consolidated critical industry metrics, improving data accessibility and executive reporting across the organization.
- Reduced data processing time by over 75% by implementing advanced workflows with ASP.NET, WPF, WCF, XML, and XSLT, cutting average load times from 8+ hours to just 2 hours.
- Developed and deployed custom SharePoint 2013 display templates to enable dynamic content rendering and improve user interaction with real-time data dashboards.
- Built multiple SharePoint 2013 solutions using jQuery, REST, and Less to streamline business processes and replace manual data entry and reporting tasks.
- Led and supported SharePoint 2013 installation and migration efforts, including environment setup, feature configuration, and site testing, accelerating deployment timelines.
- Parsed and managed large volumes of list data by leveraging both SharePoint client and server object models, improving list query performance and data accuracy.
Experience
Legacy Workflow Migration to Microsoft Power Automate
Booz Allen Hamilton | SharePoint Site Consolidation and Automation
INPO | Business Intelligence Portal for Industry Metrics
Microsoft Power Platform Dashboards and Workflow Automation
Booz Allen Hamilton | Secure API Integration for SharePoint and Microsoft 365
Education
Bachelor's Degree in Computer Engineering
Southern Polytechnic State University - Atlanta, Georgia, USA
Skills
Libraries/APIs
jQuery, REST APIs, Metadata API, jQuery UI, Auth0 API
Tools
Microsoft Power Apps, Nintex Forms, SharePoint Designer, Microsoft Teams, Nintex, ShareGate, Microsoft Power BI, Visual Studio, Microsoft Access, Google Workspace
Languages
CSS, HTML, JavaScript, C#.NET, PHP, XML, XSLT
Platforms
SharePoint, Microsoft Power Automate, WordPress, Nintex Workflow, SharePoint 365, Visual Studio Code (VS Code), Azure, Windows, SharePoint 2013, SharePoint 2010, Microsoft Power Platform
Frameworks
SharePoint Framework (SPFx), ASP.NET, Windows Presentation Foundation (WPF)
Paradigms
Agile, Low-code Development
Storage
MySQL, JSON, Azure Active Directory
Other
SharePoint Migration, Web Development, SharePoint Online, IT Consulting, IT Support, Development, Microsoft Dataverse, IT Infrastructure, IT Security, System Administration, Microsoft Azure, PnP PowerShell, Key Performance Indicators (KPIs), Data Visualization, Workflow Analysis, System Architecture Design, Permissions Modeling, Architecture, IT Governance, Microsoft 365, Workflow Optimization, Agile Delivery, Stakeholder Engagement, Stakeholder Management, Microsoft Graph API, RESTful Services, Security Groups, Hardware Provisioning, IT Networking, Networking, Hardware
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