William Sellinger

Software Engineer at accesso Siriusware
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Contact Information
us****@****om
(386) 825-5501
Location
Longwood, Florida, United States, US

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Experience

    • United States
    • Software Development
    • 1 - 100 Employee
    • Software Engineer
      • Apr 2016 - Oct 2023

      Lake Mary, FL Drove development of modern REST API in C#, writing over 20 endpoints and thousands of unit tests to deliver a more resilient, state-of-the-art product to over 90 clients Migrated critical legacy features from C++ and raw SQL to C# .NET Core and EF Core, enhancing speed, security, and reliability. Revised and repaired crucial CI/CD pipeline operation via GitHub Actions, ensuring uninterrupted development workflow on the eve of launch Shipped major updates to venerable… Show more Drove development of modern REST API in C#, writing over 20 endpoints and thousands of unit tests to deliver a more resilient, state-of-the-art product to over 90 clients Migrated critical legacy features from C++ and raw SQL to C# .NET Core and EF Core, enhancing speed, security, and reliability. Revised and repaired crucial CI/CD pipeline operation via GitHub Actions, ensuring uninterrupted development workflow on the eve of launch Shipped major updates to venerable flagship Point-of-Sale system in C++, delivering product wide refund functionality, complex inventory search, and multi currency display Maintained legacy C++ API across over 8 simultaneously in use versions, empowering clients to update safely and conveniently on their own terms Partnered with external stakeholders, developing bespoke integrations translating data across organizational bounds, enhancing user experience and driving sales Swiftly resolved client crises in tandem with on-call support and triage team, tackling multi client sales blockers and rectifying client wide credit processing outages Created and maintained comprehensive documentation for over 100 API endpoints equipping clients, affiliates, and internal developers to pursue solutions independently Lead development of crucial architecture enabling integration of multiple lead revenue generating products Show less

    • United States
    • Advertising Services
    • 1 - 100 Employee
    • Lead Interactive Developer
      • Nov 2013 - Jan 2016

      Orlando, Florida Area - Lead development on Best Digital Out-of-Home Addy award winning interactive media - Directed development of more than 20 projects from pre-production to launch - Designed and developed critical systems for the Monster Social platform - Developed and social visualization templates used in over 20 campaigns - Provided on-site support for projects in both Manhattan and Siemens HQ in D.C.

    • Interactive Developer
      • Jul 2011 - Nov 2013

      Orlando, Florida Area - Developed user interface for Silver OBIE award winning advertisement - Launched over 25 campaigns for clients as large as Chase, Verizon, and Disney - Released applications stationed in airports and amusement parks across the US - Provided live support for events including Fashion Week and the 2014 Olympics

    • Design Services
    • 1 - 100 Employee
    • Freelance Motion Graphic Designer
      • Apr 2011 - Jul 2011

    • Lead Level Designer
      • Mar 2011 - Mar 2011

      Designed quest-flow, and began level design for a proposed Browser Based MMO.

Education

  • Florida Interactive Entertainment Academy
    Master of Science - MS, Interactive Entertainment
    2009 - 2010
  • University of Central Florida
    B.A., Digital Media - Internet and Interactive Systems
    2005 - 2009

Community

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