Telephony Engineer

Engineering (EN)


Telephony Engineer

  • R10312
  • Remote, United States
  • Bay Area, California, United States
  • Engineering (EN)
  • Full time

Work Styles at Zoom

In most cases, you will have the opportunity to choose your preferred working location from the following options when you join Zoom: in-person, hybrid or remote. Visit this page for more information about Zoom's Workstyles.

About Us

Zoomies help people stay connected so they can get more done together. We set out to build the best video product for the enterprise, and today help people communicate better with products like Zoom Contact Center, Zoom Phone, Zoom Events, Zoom Apps, Zoom Rooms, and Zoom Webinars.

We’re problem-solvers, working at a fast pace to design solutions with our customers and users in mind. Here, you’ll work across teams to deliver impactful projects that are changing the way people communicate and enjoy opportunities to advance your career in a diverse, inclusive environment.

We're looking for a Telephony or VoIP (Video and Voice over Internet Protocol) Engineer to manage and maintain a global SIP infrastructure to support real-time audio and video for Zoom Meeting. This role will be on the Zoom Gateway DevOps team. The team's responsibilities include but are not limited to Zoom Audio Conference, Zoom Conference Room Connectors, Zoom Web Client, Zoom Live Streaming.


  • Zoom services’ release deployment and maintenance

  • Design and implement zero-downtime Zoom services (99.99%)

  • Manage a SIP infrastructure with components: SBC, Gateway, Media Proxies, and Media Servers

  • Build SIP trunks with PSTN carriers, enterprise customers, and telecom partners

  • Implement CI/CD to maintain a scalable architecture; work closely with developers

  • Automate monitoring metrics; identify and troubleshoot service issues


  • Must be US Citizen (government focused)

  • Knowledge of telecommunications networks and environments

  • Experience with real-time video and audio in VoIP network

  • High level of understanding of the methods of sip trunking topology

  • Advanced level understanding of SIP, RTP, RTCP, TLS, SRTP, H.323, and related protocols

  • Experience in partnering with carriers around the globe and ability to work with them to achieve high-quality service for Zoom Meeting customers

  • FreeSWITCH and OpenSIPS is a must

  • Experience with Python, Shell, and other scripting languages

  • Experience with Ansible Playbooks, Ansible Tower, and Terraform

  • Experience with Git, Jenkins, and other DevOps tools

  • Experience with Linux and shells

  • Experience with Zabbix, Grafana, ELK Stack, and other monitoring tools

  • Experience with Kubernetes, Docker is a plus

  • Experience with Public Cloud, such as AWS, is a plus

  • Excellent communication skills

  • Excellent problem-solving skills in isolation, triage, and correlation, with strong ownership

  • BS degree in a related field; MS is preferred

We believe that the unique contributions of all Zoomies is the driver of our success. To make sure that our products and culture continue to incorporate everyone's perspectives and experience we never discriminate on the basis of race, religion, national origin, gender identity or expression, sexual orientation, age, or marital, veteran, or disability status. Zoom is proud to be an equal opportunity workplace and is an affirmative action employer. All your information will be kept confidential according to EEO guidelines. 

We welcome people of different backgrounds, experiences, abilities and perspectives including qualified applicants with arrest and conviction records and any qualified applicants requiring reasonable accommodations in accordance with the law. If you need any assistance or accommodations due to a medical condition, or if you need assistance accessing our website or completing the application process, please let us know by emailing us at

At Zoom, we care about our employees, their families, and their well-being. As part of our award-winning workplace culture and commitment to delivering happiness, our benefits program offers a variety of perks, benefits, and options to help employees maintain their physical, mental, emotional, and financial health; support work-life balance; and contribute to their community in meaningful ways. To view our benefits, click here.

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Fraudulent Employment Offers

Zoom is aware of scams that involve fake Zoom job listings posted on third-party sites. Responding applicants are contacted primarily over email, InMail and/or chat applications by people impersonating Zoom employees. Eventually a fake offer letter is sent in exchange for personal identification information as part of a fake new-hire screening process.

Please be advised that these offers, communications and impersonations are illegitimate and fraudulent. All communication with Zoom employees come from a “” email address. Zoom job applicants complete an interview process including in-person (on Zoom) meetings and phone calls. Our process also requires you to create an account with our applicant tracking system, Workday.

Zoom will never ask for your personally identifying information during the interview process or ask you to pay money or purchase equipment. If you have received a message from Zoom that appears suspicious, please contact 


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