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Sean McLellan

Principal Software Architect

Sean McLellan
Professional Status
Open to opportunities
About Me
A highly motivated full-stack Software Engineer/Architect with over 15 years of experience, architecting and developing both internal systems and commercial products.

My experience includes full-stack development, Cloud/Cloud Native on Azure/AWS, Containerization, SharePoint 2010/2013/2016 based internal and external portals, service-oriented applications (SOA), REST-based web services and Microservice based architectures on Windows and Linux platforms.

I have an in-depth knowledge of dotnet core, C#, ASP.NET and MVC as well as a passion for the latest trends in technologies including TypeScript, NodeJS, React, webpack and similar technologies. I'm very passionate about the DevOps experience and reach for CI/CD tools and automated processes. Hobby level interests in IoT and UAVs. Contributor and maintainer of open source projects.
  • Developed solutions and performed IT/IS administration in support of the Systems Engineering and Integration laboratory using .NET and Oracle technologies for internal consumption.
  • Held Security Clearance as part of responsibilities.
Detailed Description
  • Maintained and updated SRA data conversion utilities developed in C#.
  • Developed solutions in support of the SEIC laboratory using a combination of ASP.NET and ASMX-based Web services with Oracle and XML/XML Schema back ends.
  • Used Oracle Data Provider .NET (ODP.NET) to interface with Oracle database.
  • Administered an internal Windows SharePoint Services 2.0 site to support collaboration with systems engineering programs which involved customization of WSS functionality and development of custom Web parts as needed.
  • Performed IT management tasks in maintaining working server and lab environments in both classified and unclassified roles with defined software configurations.
  • Conducted beginning to intermediate training sessions on the use of systems requirements software to systems engineers and integrators.
  • Utilized XML Spy to create custom XML Schemas for data validation and transformation.