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Software Developer, Server-Side Calling at TextNow
Waterloo City, Ontario, CA

extNow is building a virtual calling platform to service tens of millions of daily phone calls. We are looking for a software engineer to help with the server-side architecture, design, implementation, deployment, monitoring and alerting as we create our initial build-out and later enhance with quality improvements and extended the feature offerings.


  • BS in Computer Science or a related educational background
  • 3+ years of backend server software development
  • Ability to design solutions to meet requirements (OOA&D, UML, Sequence Diagram, Data Diagram, etc.)
  • Ability to implement solutions against designs
  • Understanding of best practices with unit, integration, load and performance testing
  • Familiar with CI/CD best practices


Highly Desired:

  • Experience with network protocols (UDP, TCP)
  • Experience in VoIP (SIP, RTP, RTCP, and market leading open source projects)


  • Impactful work
  • Competitive total compensation package
  • TextNow-powered smartphone
  • Catered lunches
  • Professional development


TextNow is committed to fostering a welcoming, accessible, respectful and inclusive environment ensuring equal access and participation for people with disabilities. We are committed to treating people with disabilities in a way that allows them to maintain their dignity and independence.

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