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Application Developer

Job in Dahlgren, King George County, Virginia, 22448, USA
Listing for: Sigma Defense Systems LLC
Full Time position
Listed on 2026-10-11
Job specializations:
  • Software Development
    Java Developer, Software Engineer, Full Stack Developer
Salary/Wage Range or Industry Benchmark: 80000 - 110000 USD Yearly USD 80000.00 110000.00 YEAR
Job Description & How to Apply Below
Position: 1760 - Application Developer

Sigma Defense is seeking an Application Developer to provide support to Naval Surface Warfare Center Dahlgren Division (NSWC DD) Engineering Life-Cycle Management & Development Resources (ELCMDR) Program for web-based applications and systems engineering tools, and other like support services.

This position will support the All Sites Module (ASM) and related applications, with an emphasis on Java-based application modernization, Oracle database support, Type Script/Vue development, security compliance, and Agile software development.

Equal Opportunity Employer/Veterans/Disabled:
Sigma Defense Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

Requirements
  • 2-3 years of relevant experience
  • 2+ years of experience using Java.
  • 2+ years of experience using NET/MVC, Angular, JavaScript, jQuery, and HTML5 is preferred
  • 2+ years of experience working with Git repositories.
  • 2+ years of experience using one or more of the following development environments:
    Visual Studio, JDeveloper, Net Beans, or Eclipse
  • 2+ years of experience with Agile software development and peer programming
  • Experience working with Oracle databases.
  • Must be a U.S. citizen
Candidate Differentiators
  • Experience modernizing legacy Java applications.
  • Experience developing applications using Type Script and Vue.js.
  • Experience with Vuetify or similar UI frameworks.
  • Experience with Oracle database procedures, functions, and triggers.
  • Experience developing and maintaining technical documentation, SOPs, installation instructions, and cutover plans.
  • Experience supporting applications within Department of Defense (DoD) environments.
  • Familiarity with DoD cybersecurity requirements and security compliance processes.
  • Experience working in an Agile/Scrum development environment
Mandatory Certifications
  • Cybersecurity Workforce (CSWF) certification
Computer Programs/Software
  • Java
  • Type Script
  • jQuery
  • HTML5
  • Angular
Personnel Clearance Level
  • Candidate must possess or have the ability to obtain an active Secret security clearance or higher
  • Clearance may be sponsored for the right candidate
Education Requirements
  • Bachelor's degree from an accredited college or university in an Engineering, Scientific, Business, or technical discipline with 2+ years of technical experience developing complex applications.
  • 6+ years of technical experience developing complex applications may be substituted for the education requirement.
Essential

Job Duties (not all-inclusive)
  • Application development, database support, modernization, testing, and sustainment for mission-critical applications supporting the Government.
  • Develop, maintain, enhance, and modernize complex applications supporting Government mission requirements.
  • Convert existing Java classes into Type Script.
  • Develop Vue.js components to replace legacy Java Frames.
  • Support development and integration using modern application development frameworks and tools.
  • Develop and execute software test procedures to validate application functionality and performance.
  • Troubleshoot application issues and provide timely technical solutions.
  • Participate in peer programming and collaborative software development activities.
  • Maintain application documentation, installation instructions, migration instructions, and delivery cutover plans.
  • Develop and maintain Oracle procedures, functions, and triggers.
  • Develop and maintain database procedures, technical documentation, and Standard Operating Procedures (SOPs).
  • Support application and database security requirements within classified and Government environments.
  • Support…
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