AES Job Board

QSC, LLC - Software Engineer - Telephony

Posted On: 2019-12-23
Location: Boulder, CO, USA

The Software Engineer - Telephony will work with an experienced team of software, firmware, and hardware engineers to develop our Q-SYS platform. Q-SYS is a fast growing, award winning, software and hardware platform built on cutting-edge audio, video and control products. This position will focus on maintaining and enhancing the telephony features of the platform. The position is based in Boulder, Colorado.


•Develop world-class software within the pro audio, video & control industry
•Enhance the VoIP, telephony and conferencing capabilities of the Q-SYS platform
•Work with Software Quality Assurance to develop appropriate test strategies
•Perform other duties as assigned in an agile scrum environment
•At QSC you will not be a small part of a large team, but a large part of a small team


•B.S. in Computer Science or Electrical Engineering or Computer Engineering
•4+ years working in MS Windows and/or Linux software development environments
•Minimum of 4 years of experience with C/C++
•Solid understanding of SIP, VoIP, RTP/SRTP, TLS
•Understanding of softphone integration with systems from Cisco, Avaya, Mitel, Microsoft Skype
•Understanding of Voice codecs
•Experience with SIP stack integration
•Experience FreeSWITCH and/or Asterisk
•Experience with Linux, embedded Linux
•Familiarity with professional audio and video products is a bonus
•Passionate, persistent, creative - you find solutions to difficult problems and clever ways to work around them when necessary
•Great communication skills
•Must be self-motivated in order to achieve assigned objectives with minimal supervision

How to Apply: Please apply via our careers site at
Please reference the AES job board when applying.

Please mention AES001345 when applying for this position.

About QSC, LLC

1675 MacArthur Blvd.
Costa Mesa, CA 92626

Phone: +1 714 754 6175
Email: Send Email

QSC, LLC, is a globally recognized leader in the design, engineering, and manufacture of award winning high performance audio products including power amplifiers, loudspeakers, digital mixers, digital signal processors (DSP), and the Q-SYS networked audio, video, and control platform. Uniquely leveraging a broad range of technologies located under one roof, QSC products outperform the sum of their parts by delivering reliable, scalable, and flexible solutions for professional installed, portable, production, corporate, and cinema customers worldwide.

AES - Audio Engineering Society