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Senior Applications Developer

Leidos

$126,100 - $227,950
Aug 27, 2025
Washington, DC, USA
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The Department of Justice (DOJ) is looking to support several customers, including the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), with IT applications and infrastructure services, and is seeking a Senior Application Developer to work on the ESA V program to satisfy rapidly emerging Java and .NET development requirements.

Requirements

  • Application Server Experience with Agile development Cloud development experience
  • Java Development JDK 1.7 / 1.8 (or higher); J2EE Technologies
  • Microsoft .Net technologies C, ASP.NET, VB.NET, ADO.NET, Web Services, and Windows Communication Foundation WCF
  • REST API, SOAP
  • Relational SQL
  • JBoss Middleware
  • Apache Web Server
  • HTML, CSS & Webservices
  • JavaScript frameworks Node / Angular / Express
  • RedHat Linux
  • AWS Technologies (API Gateway, S3, Lamba, etc.)

Responsibilities

  • Develop and maintain Java and .NET applications using Agile software development techniques.
  • Enhance, monitor, and maintain Microsoft Identity Manager (MIM) to ensure the data streaming smoothly to integrated systems and applications.
  • Support software application migration from an on-premise data center to a cloud environment.
  • Consult with the business process owners, customers, users and constituents to develop and analyze customer requirements, enhance features, fix defects, and upgrade the application.
  • Perform application testing, vulnerability fixes, regular application maintenance, license/certificate update, and solving complex issues.
  • Create and maintain application documentation.
  • Collaborate with members of project teams to ensure successful, technically sound projects which are completed on time and on budget.

Other

  • Excellent communication and teamwork skills, including team leadership experience
  • Customer interface experience
  • US Citizenship is required
  • Current clearance is not required, but selected individual cannot start the assignment until the required security clearance is granted by the customer
  • Bachelor’s degree from an accredited college in a related discipline, with 12 years of prior relevant experience; or a Master’s degree with 10 years of prior relevant experience