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Sean McLellan

Principal Software Architect

Sean McLellan
Professional Status
Employed
Open to opportunities
About Me
A highly motivated full-stack Software Engineer/Architect with over 20 years of experience, architecting and developing both internal systems and commercial products.

My experience includes AI/ML integration, full-stack development, Cloud/Cloud Native with Kubernetes 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.

Polyglot, with expertise across multiple languages and frameworks, including Python, Golang, and the .NET ecosystem (C#, ASP.NET, MVC). Enthusiastic about modern web technologies, with strong experience in TypeScript, React, NextJS, Bun, and Node.js. Deeply committed to DevOps practices, specializing in CI/CD pipelines and automation. Maintains and contributes to open-source projects while pursuing interests in Internet of Things (IoT) and Unmanned Aerial Vehicles (UAVs).
  • Created and maintained a data transition tool using .NET which migrating legacy ICBM systems requirement data from a 16-bit in-house application into a modern systems engineering package called CORE.
Detailed Description
  • Used C# to develop a conversion tool including using MarshalAs and StructLayout attributes to create C# proxies of C-based data structures in order to read legacy data natively in .NET.