Mark Johnson Email & Phone Number
Independent Contractor @ Sandbar
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Mark Johnson Location
- Blacksburg, VA, US
Mark Johnson Work
- Independent Contractor @ (June 2026 - Present)
- Software Engineer iOS Foundation @ (January 2022 - May 2026)
- Lead Mobile Engineer @ (May 2021 - November 2021)
- Mobile iOS Software Engineer @ Block.one (October 2019 - May 2021)
- Software Engineer - iOS @ (September 2017 - October 2019)
- Senior Architect Apple Products @ (March 2008 - July 2017)
- Principal Software Engineer @ (February 2001 - March 2008)
- Independent contracting @ Self-Employed (January 2000 - February 2001)
- Senior Software Developer @ Grace Ministries (January 1998 - January 1999)
- Senior Software Engineer @ Teletrac (January 1997 - January 1998)
- Software Engineer @ Informix / ISCC (January 1996 - January 1997)
- Team Leader - Senior Application Specialist @ (June 1989 - January 1996)
Mark Johnson Education
- University of Nebraska-Lincoln 1982-1985
- University of Nebraska at Kearney 1979-1982
Mark Johnson Skills
- .NET Framework
- ASP.NET
- AWS S3
- Active Server Pages (ASP)
- Amazon Web Services (AWS)
- Apollo GraphQL
- Blockchain
- C
- C #
- C#
- C++
- Combine
- Databases
- Git
- ISAPI
- Informix
- JSON
- Microsoft Foundation Class (MFC)
- Microsoft SQL Server
- Mobile Software Development
- OS/2
- Object-Oriented Programming (OOP)
- Objective-C
- Presentation Manager
- REST
- ReactiveSwift
- Realm
- RxSwift
- SQL
- Sockets
- Software Development
- Swift
- Swift Concurrency
- SwiftUI
- UIKit
- Visual Studio
- WinForms
- XML
- Xcode
- iOS
- iOS Development
- iPhone Application Development
- libxml2
- sqllite
Mark Johnson Summary
- Mark Johnson, based in Blacksburg, VA, US, is currently a Independent Contractor at Sandbar. Mark Johnson brings experience from previous roles at Square, Supersapiens, Block.one and Doximity. Mark Johnson holds a 1982 - 1985 University of Nebraska-Lincoln. With a robust skill set that includes .NET Framework, ASP.NET, AWS S3, Active Server Pages (ASP), Amazon Web Services (AWS) and more. Mark Johnson has 2 mobile phone numbers on RocketReach.
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