Concurrency, Inc. - Brookfield, WI

Senior Software Developer -Identity and Security

US-WI-Brookfield | US-IL-Chicago | US-MN-Minneapolis
6 months ago
# of Openings
Modern Applications


Concurrency is seeking a Senior Software Developer to join our growing Modern Applications development team. The successful candidate will have both broad and deep technology knowledge and will assist with the architecture and the implementation of web and identity related applications. Demonstrated ability to engage in senior level technology decision maker discussions related to agility, business value, and .NET is also a must.  This role includes responsibilities within Concurrency’s product development efforts including research and testing to determine best-of-breed new technologies.



  • Development, testing and deployment of n-tier software applications.
  • Create technical documentation as required.
  • Participate in requirements gathering and technical review meetings at milestones throughout the project.
  • Provide excellent status and communication on project tasks.
  • Consider and research emerging technologies to improve current applications, architectures and processes.



  • 5 or more years of experience in Microsoft .NET-based enterprise systems design, development, testing, deployment, and operational support, including 4 or more years of ASP.NET.
  • Experience executing Single Sign-on and claims based identity initiatives.
  • Experience with advanced integration scenarios in web solutions.
  • Knowledge of or experience with enterprise architecture, server topologies and distributed systems.
  • Experience with layered (n-tier) and service oriented (SOA) application architectures
  • Demonstrated verbal and written communication skills
  • Demonstrated technical documentation skills
  • Prior consulting experience

Skills Requirements:

  • SAML, WS-FED and OAuth protocols
  • OAUTH 2 and OpenId Connect
  • C# .NET 4.0 and 4.5.1
  • Windows Identity Foundation 3.5 and OWIN/Katana
  • ADAL
  • ASP.NET web development practices
  • ADFS or Azure Active Directory (or 3rd party Identity Providers)
  • Prior experience with mobile development a plus
  • Auth0 experience a plus


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