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Applications Developer

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Hybrid

Applications Developer

J5 Consulting

Applications Developer

Skills

C#

4 months ago

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Important information


Contract type:

Permanent

Location:

Reston, VA, USA

Work mode:

Hybrid

Published on:

7 August 2026

What they need


J5 Consulting is a Maryland based company established in 2006 to provide computing and consulting services for government and commercial entities. Our services improve Information System networking performance and compliance and protect electronic assets from loss and compromise. We welcome your application to receive consideration for the following position.

Job Overview: Available Immediately Introduction This position will assist with maintenance of existing legacy applications and support the transition to a new system architecture. Location is the Reston area. ***NOTE: Additional security scrub required.

Required skills and demonstrated experience:

  • 5 or more years with Full Stack development experience
  • 5 or more years with supporting legacy applications
  • Demonstrated experience (3+years) with C# desktop application development experience
  • Design and deploy bug fixes written in the C# software language to support an existing legacy system
  • Experience working on an application built on client/server-based architecture
  • 3 years experience with RDMS support
  • Experience developing, implementing and maintaining complex functions, scripts, stored procedures and triggers in support of applications
  • Demonstrated strong troubleshooting experience
  • Experience working in an Agile development environment
  • Proficiency with Git

Highly desired, though not required, include:

  • Familiarity with the Sponsor's A&A process
  • Familiarity with DevOps

__________________________________________________________________________________

US Citizenship:

  • This position requires US Citizenship. Verification of US Citizenship to meet federal government security requirements will be confirmed

Security Clearance:

  • The successful candidate must have an active U.S. Government Top Secret Security Clearance with a Full Scope Polygraph
  • Clearance Verification: This position requires successful verification of the stated security clearance to meet federal government customer requirements. You will be asked to provide clearance verification information prior to an offer of employment

Travel:

  • This position is expected to be onsite. The position will be located within the Washington Metropolitan Area (WMA). Local travel/POV will be on an as needed basis, within the local place of performance

Join J5 Consulting and Grow Your Cybersecurity Career At J5, we’re a team of innovators protecting organizations from evolving cyber threats. With 18+ years of success in government and commercial sectors, we offer meaningful opportunities to grow your career.

Enjoy comprehensive benefits, including:

  • 100% employer-paid health coverage
  • a 6% 401(k) match
  • PTO
  • tuition reimbursement
  • bonuses
  • professional development, and more

Ready to make an impact? Explore our open positions and apply today. Powered by JazzHR

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