developer-apis enterprise-software telephony
San Francisco, CA

Software Engineer - Cloud Security


About us:

Twilio makes communications easy and powerful. With Twilio's platform, businesses can make communications relevant and contextual by embedding real-time communication and authentication capabilities directly into their software applications. Twilio gives businesses the ability to innovate, prototype, create, and connect with their customers at the right time and in the right way. Founded in 2008, Twilio is publicly held and based in San Francisco, California with other offices around the world.

Twilio Graduate Security Engineers develop software, systems, and tools that keep Twilio secure. Successful candidates will have a drive to build solutions to tough security problems, have experience developing software and have hands on experience with cloud environments and networking.

About the job:

  • This person will be responsible for building services, applications and security controls that protect Twilio‚Äôs cloud infrastructure and products. They will develop tools that measure and report infrastructure and production services‚Äô security posture. This person will also work with engineering teams to help them build applications and services which are secure by design


  • Be part of a small, high-impact and multi-talented Security team.
  • Develop tools to find and fix security issues at scale.
  • Create automated tests to enforce security standards.
  • Work with product management and engineering teams to perform security/privacy reviews of their platforms, products and systems.
  • Build, develop and maintain systems that control production access in multiple regions, including Twilio PKI and Bastion Hosts.
  • Build tools and systems for automated network security, credential management, service authentication, identity and access control.
  • Work with engineers and teams outside security to enhance their systems with security improvements, or integrate their systems with improved security tooling.
  • Excel as an engineer and be a productive member of the team where leadership is a behavioral trait, not a title.



  • A Bachelors degree in Computer Science or Computer Engineering, or equivalent experience
  • Proficient background in networking, operating systems, and security
  • Interest and awareness of common security vulnerabilities, attack vectors and how to resolve them.
  • Understanding of authentication and authorization protocols.
  • Development background
  • Familiar with cloud technologies and are hands-on with AWS.
  • Experience in a minimum of three (applied cryptography, web app security, security protocols, AWS security, threat modeling, network security, writing secure code).

Bonus points:

  • Show us your GitHub and/or website on your resume.


  • Competitive benefits, including medical, dental,¬†vision, 401k¬†and 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 ‚ÄĒ two if you need 'em).
  • A strong belief in life/work balance.

Twilio's mission is to fuel the future of communications. Developers and businesses use Twilio to make communications relevant and contextual by embedding messaging, voice and video capabilities directly into their software applications. Founded in 2008, Twilio has over 650 employees, with headquarters in San Francisco and other offices in Bogot√°, Dublin, Hong Kong, London, Madrid, Mountain View, Munich, New York City, Singapore and Tallinn.

Twilio is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal opportunity regardless of race, color, ancestry, religion, gender, gender identity, parental or pregnancy status, national origin, sexual orientation, age, citizenship, marital status, disability, or Veteran status and operate in compliance with the San Francisco Fair Chance Ordinance.


Work with this stack