> Markdown version of [/jobs/ext/3534115-applications-developer](https://www.wearedevelopers.com/jobs/ext/3534115-applications-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Applications Developer

- **Company:** J5 Consulting
- **Location:** Reston, VA, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Software Applications, Software Bug Management, C Sharp (Programming Language), DevOps, SQL Stored Procedures, Systems Architecture, Git, Legacy Systems
- **Published:** October 1, 2026
- **Apply:** https://www.juju.com/job/16_784613c517

## About the Role

* 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, * The successful candidate must have an active U.S. Government Top Secret Security Clearance with a Full Scope Polygraph.

## Description

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.