Demo

Senior Developer C#/.NET

Johnson Technology Systems Inc
Fairfax, VA Contractor
POSTED ON 5/7/2026
AVAILABLE BEFORE 6/6/2026

Role Title: SENIOR DEVELOPER C#/.NET 

Job Location: - Radford, VA

Project: - US ARMY

Clearance: - ***Active Secret Clearance Required***

Role Description:

The primary requirement for this position is being a support developer for a variety of C# .NET applications. It will require direct interaction with the proponent and Experience with handling large volumes of e-mail and communication.

Tasks and assignments will include:

  • Serve as the support developer for application requirements
  • Developing server-side code for internal and external web applications.
  • Writing unit tests, automated regression tests and tracking defects as they occur.
  • Developing applications using both C# .NET, utilizing the .NET MVC framework
  • Maintaining a high level of security and code reusability.
  • Working with clients to develop requirements documents and project schedules.

Required Skills:

  • A minimum of at least 5 years of experience in performing the specified functions.
  • Experience with C#/.NET MVC
  • Experience with nHibernate, Microsoft Entity Framework, or similar database modeling framework
  • Understanding of IIS and the deployment of C#/.NET applications
  • Experience with JIRA, Confluence, and the Atlassian sutie of tools
  • Experience working in a SCRUM-based Agile environment 
  • Experience managing a project schedule
  • Experience with leading a development team
  •  DOD Interim Secret as a minimum.

Hourly Wage Estimation for Senior Developer C#/.NET in Fairfax, VA
$56.00 to $71.00
If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

Sign up to receive alerts about other jobs with skills like those required for the Senior Developer C#/.NET.

Click the checkbox next to the jobs that you are interested in.

  • Access Control Skill

    • Income Estimation: $43,750 - $56,299
    • Income Estimation: $56,485 - $78,332
  • BI Analytics/Reporting Tools Skill

    • Income Estimation: $85,565 - $116,579
    • Income Estimation: $94,396 - $120,089
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Johnson Technology Systems Inc

  • Johnson Technology Systems Inc Reston, VA
  • "WE DO WHAT WE SAY " JTSi is a federal government consulting firm, providing technical services to the Federal Government, i.e., DoD, Client and various Ci... more
  • 3 Days Ago

  • Johnson Technology Systems Inc Fairfax, VA
  • Position for Training Analyst for Project Lightfoot. This position will work with clients and the implementation team to develop and update Training materi... more
  • 4 Days Ago

  • Johnson Technology Systems Inc Fairfax, VA
  • Role Title: UNIX Senior Administrator Job Location:- Kingstowne, VA Project: - US ARMY Clearance:- ***Active Secret Clearance Required*** Role Description:... more
  • 5 Days Ago

  • Johnson Technology Systems Inc Reston, VA
  • "WE DO WHAT WE SAY " JTSi is a federal government consulting firm, providing technical services to the Federal Government, i.e., DoD, Client and various Ci... more
  • 6 Days Ago


Not the job you're looking for? Here are some other Senior Developer C#/.NET jobs in the Fairfax, VA area that may be a better fit.

  • Evolver Washington, DC
  • Evolver is a cybersecurity and digital transformation company supporting national defense, federal civilian agencies, and Fortune 500 organizations. We hel... more
  • 4 Days Ago

  • Donan Consulting Washington, DC
  • THE OVERALL PURPOSE OF POSITION: Senior .Net Developer will provide support for critical business functions through the development, implementation, testin... more
  • 9 Days Ago

AI Assistant is available now!

Feel free to start your new journey!