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Senior Software Engineer - Web

San Francisco, CA | Engineering

Job Description


About Us:

  • Twilio is powering the future of business communications, providing a platform for building modern, communications–enabled applications - light, cloud-based, scalable, and user experience focused. 
  • Nearly 150,000 developers have signed up to be a part of this disruption, building applications for security, privacy, and fraud prevention; customer service and help desk support; sales communications; marketing and lead management; business process and logistics; and business communications and collaboration.
  • Twilio customers include great brands like airbnb, eBay, Hulu, Intuit, LinkedIn, Quora, Sony, SurveyMonkey, Trulia, WalmartLabs, and ZenDesk.
  • Twilio is energizing the $1.3 trillion telecom market. Come help modernize an enormous industry with software.

About the Job:

  • We're seeking a Software Engineer to join Twilio's Web team and help build the best telecommunications API on the planet.
  • This is a role focused on creating the next generation of tools to help our customers and operations teams manage their telecommunication infrastructure.
  • Successful candidates will be strong full-stack developers with experience in creating user-facing features, maintaining large code bases, and engineering features with high scalability, security, and reliability.


  • Work directly with product management to define, architect, and build new features.
  • Maintain highly available, scalable, and reliable infrastructure.
  • Write quality, maintainable code in PHP, HTML, CSS, and JavaScript in a fast-paced professional software engineering environment.


  • A Bachelors or Masters degree in Computer Science or Computer Engineering, or equivalent experience.
  • 4+ years in industry as a developer working with public user-facing systems.
  • Strong background in frontend engineering
  • Experience with traditional RDBMS databases, such as MySQL, Postgres, Oracle, etc.
  • Deductive reasoning and problem solving skills.
  • Hands on. Passionate. Persistent. Creative. 

Bonus Points:

  • You know the difference between an Abstract Base Class and an Interface, and when to use them.
  • You have tuned an interface based off of customer feedback and empirical data.
  • You have used pseudo-selectors, deferreds, and delegates in jQuery
  • You have spent 4 hours figuring out what 4 characters are causing a bug
  • You are passionate about making software that delights and simplifies.


  • Competitive benefits, including medical, dental, vision, life insurance
  • An Amazon Kindle, $30/month to spend on books and a Twilio track jacket after demoing your first Twilio app in front of the company!
  • Pre-tax commuter benefits
  • Catered lunches and a weekly team dinner featuring invited technology and entrepreneurial speakers
  • Excellent gear (“We ❤ Apple computers and big monitors — two if you need ’em”);
  • A strong belief in life/work balance

How to apply:

  • Want to stand out? Sign up and build an app using the Twilio API. Include a link to it in your cover letter. Bonus points for pointing out bugs or things that annoyed you/could be better about the platform.
  • You must be authorized to work in the United States .
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