Software Engineer – React

CONCEPT SOLUTIONS LLC•Reston, VA
•$100,000 - $120,000•Hybrid

About The Position

Concept Solutions, LLC (CS) is seeking a Software Engineer - React to support a mission-critical application modernization program for a Department of War (DoW) customer. This initiative focuses on creating a unified experience across multiple production applications through single sign-on, a shared user interface, and a standardized approach to integrating existing applications into a common platform. The selected candidate will support the ongoing maintenance and enhancement of React applications while helping ensure seamless integration with the broader platform.

Requirements

  • 3+ years of front-end software engineering experience using React.
  • Experience working within formal software release processes.

Nice To Haves

  • Experience working with Java back-end applications.
  • Familiarity with accessibility testing.
  • Active Secret security clearance.

Responsibilities

  • Troubleshoot and resolve front-end defects in two React applications, including a small public-facing single-page application supported by a Redis-backed service.
  • Support embedded-adapter integration that enables legacy functionality to operate within the modern platform interface.
  • Maintain application stability and functionality while supporting the broader modernization effort.
  • Participate in two-week Agile sprints, including customer demonstrations at the conclusion of each sprint.
  • Follow established release processes to support reliable application updates.

Benefits

  • health, dental, vision and life insurance
  • a comprehensive 401(k) plan with matching and immediate vesting
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