Senior Software Engineer (Telephony)

About CallRail

CallRail serves over 150,000 companies with straightforward software, an analytics platform that surfaces and connects data from calls, forms, chat, and beyond—helping marketers get to better outcomes. Our platform is powered by a team of passionate and hardworking leaders and contributors. We put our customers first and are dedicated to working on what makes sense for them and doing that well.

Our team has been honored numerous times as one of Atlanta’s Best Places to Work, Inc. 500’s fastest-growing companies, and G2Crowd’s top-rated inbound call tracking platform. While we’re proud of our history so far, we’re even more excited about what’s next.  Our platform helps hundreds of thousands of businesses get complete visibility into their digital marketing efforts, and we can’t wait for you to help us keep building.


The Position

CallRail is looking for a Senior Software Engineer (Telephony) with a backend focus to join our growing team. Experience with VoIP telephony is required and Twilio API is preferred.


What You'll Do

  • Deliver incredible products. We’re a product-first company, and we aren’t satisfied until we’ve built a product so clearly superior that customers have no reason to consider anything else.
  • Be a strong technical contributor. As an individual contributor, you’ll write testable, maintainable, scalable code and deploy it frequently. You’ll review the code of other developers, and be open to feedback about your own.
  • Prioritize delivery. Our team ships code multiple times daily, and you’ll help us deliver small continuous improvements with each iteration, if not more frequently.
  • Communicate well. You'll explain your work clearly to team members, and seek feedback to build a codebase we all enjoy contributing to. You’ll keep engineering leadership apprised of important developments on your team, and areas needing attention when appropriate.
  • Be a good teammate. You'll be helpful, open-minded, respectful, and collaborative. You'll support your teammates and challenge them to do their best work.
  • Learn. Regardless of your level of experience or seniority, you'll work to improve your skills and learn more about our customers and their needs.


Desired Skills & Experience

We require you to be willing and able to do all of the things in the previous section. Beyond that, there are a handful of things that may make you a better fit. We'll consider candidates who don't check all of these boxes. If you've got analogous experience or a track record of being able to pick things up quickly, please tell us in your application!

Experience with the following would be helpful:

  • Writing web applications with an MVC framework, especially Ruby on Rails
  • Deep understanding of Telephony technologies, including Twilio API and Freeswitch
  • Writing automated unit and integration tests
  • Building software-as-a-service platforms, particularly for small and medium-sized businesses
  • Developing software with security and regulatory compliance in mind
  • Refactoring systems to perform well at scale while still being readable and easy to maintain
  • Reviewing the code in a way that empowers your teammates while improving our codebase
  • Mentoring and coaching other engineers
  • A Bachelor’s degree in a related field or comparable work experience

Technologies and Tools We Use:

  • Ruby, Rails, Sidekiq, and Rspec
  • Freeswitch
  • Angular, Javascript, Typescript, and Ionic
  • Postgres, Redis, RabbitMQ, and Elasticsearch
  • Twilio and other telephony providers


Additional Perks

  • Health Benefits, 401(k) matching
  • Stock Options
  • Excellent PTO Policy
  • Paid Parking/ Paid Marta
  • Flex Hours/ Work From Home Options

Submit your application