Parsons Corporation is seeking a Software Developer to join their Federal Solutions team in McLean, VA. This role focuses on developing and maintaining voice media gateways that integrate with telephony infrastructure using Ruby, Ruby on Rails, and Linux systems. The position requires expertise in server management, telephony systems integration, and web application development. With a competitive salary range of $86,700 - $151,700, the role offers comprehensive benefits including medical, dental, vision, 401(k), and flexible work schedules. The ideal candidate will have 2+ years of experience and must possess an active TS/SCI clearance with Polygraph. This opportunity allows you to work on critical infrastructure and defense projects while being part of a company with a 75+ year legacy in delivering innovative solutions. The role combines backend development with telephony systems integration, making it an exciting opportunity for developers interested in working with both web and telecommunications technologies. Parsons offers a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining the nation's most critical assets.