developer-apis enterprise-software telephony
San Fracisco, CA

Principal Network Engineer - Voice Operations


Because you belong at Twilio

The Who, What, Where and Why



Twilio is looking for a Principal Network Engineer to oversee the overall voice infrastructure of Twilio’s carrier platform and manage day-to-day operations with all of Twilio’s carrier partners. The right candidate will be passionate about serving customers and have deep telecom experience, a strength that will go a long way is the ability to dig into voice packet capture and track a problem down to its root cause. You should enjoy looking at network designs and be able to spot flaws or deficiencies that have the potential to cause problems for our customers. Getting into the gritty details to solve meaty customer problems should be an enjoyable adventure for you. You have experience building and operating production service provider networks for security, scalability, and reliability. You should be used to a high-paced telecom environment with shifting priorities and understand how to juggle a wide range of issues.



In this role, you will work with carrier partners, customers, and internal engineering teams as well as mentor carrier engineers in operating and troubleshooting our global telecommunications network. The role will include handling urgent escalations and working across multiple teams to resolve issues. You will have an eye for detail in maintaining our interconnection standards and designing and implementing monitoring and automation for our network. In addition, you should be able to navigate the Twilio organization to partner with the right teams for the problems we are trying to solve for our customers. You should be able to apply what you know about voice over IP networks to a microservices setup. You know that things change quickly so that what you were taught in month 1 might need to be reevaluated in month 5 due to architecture changes that can happen quickly in an agile environment. There is no manual. Here at Twilio drawing the owl (i.e., the ability to dive and figure it out on your own) can be a road to systemic improvements and personal discovery.



Twilio’s mission is to fuel the future of communications, and the mission of the Voice Operations team is to ensure high quality of every call that Twilio routes over our global network. Your experience will help the team continue to deliver on this mission as Twilio expands its Super Network and Voice product offerings.


Twilio is truly unique; we are a company committed to your growth, your learning, your development, and your entire employee experience. We only win when our employees succeed and we're dedicated to helping you develop your strengths. We invest in weeks dedicated to tackling hard problems and creating your own ideas. We have a cultural foundation built on diversity, inclusion, and innovation, and we want you and your ideas to thrive at Twilio. Come join us.  



This position will be located in our beautiful office at 375 Beale Street in San Francisco (or you can work remotely just about anywhere in the world and make periodic trips to San Francisco). You should expect the normal perks: catered meals, snacks, game room, ergonomic desks, etc. What you will also get to experience is a company that believes in small teams for maximum impact; that strives to balance work and home life, that understands that this is a marathon, not a sprint; that continuously and purposefully builds an inclusive culture where everyone is able to do and be the best version of themselves. We seek people who naturally demonstrate our values, are challenged by problems, empower others to thrive, and can draw the owl and not be beholden to one playbook.

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