J5holdingscorporation logo

Applications Developer

j5holdingscorporation

On-site
Reston, VA
Full-time
Senior
5+ yrs
Salary not listedPosted 3mo ago

Real job — pulled straight from j5holdingscorporation’s careers page · Verified May 24, 2026 · No reposts.

Job description

j5holdingscorporation is hiring a Applications Developer — a full-time, based in Reston, VA role. Apply directly on j5holdingscorporation's careers page below.

Applications Developer

Location: Reston Area, VA

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.

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Frequently asked questions

What skills are required for Applications Developer at j5holdingscorporation?

The required skills for Applications Developer at j5holdingscorporation include: FullStack, C#, Git, DevOps.

What is the seniority level for Applications Developer at j5holdingscorporation?

Applications Developer at j5holdingscorporation is a Senior level position.

How do I apply for Applications Developer at j5holdingscorporation?

You can view the full description and apply for Applications Developer at j5holdingscorporation on EchoJobs: https://echojobs.io/job/j5holdingscorporation-applications-developer-tkgho.