Principal Software Engineer (L5) - Email Platform

Posted May 10

Join the team as our next Principal Software Engineer (L5)

Who we are & why we’re hiring

Twilio powers real-time business communications and data solutions that help companies and developers worldwide build better applications and customer experiences.

Although we're headquartered in San Francisco, we have presence throughout South America, Europe, Asia and Australia. We're on a journey to becoming a globally anti-racist, anti-oppressive, anti-bias company that actively opposes racism and all forms of oppression and bias. At Twilio, we support diversity, equity & inclusion wherever we do business. We employ thousands of Twilions worldwide, and we're looking for more builders, creators, and visionaries to help fuel our growth momentum.

About the job

This position is needed to develop the most trusted and secure email platform, plus leading the effort to integrate SendGrid tech stacks into the Twilio platform.

The team offers tremendous opportunities for learning and growth. Ownership spans from the core services in the email platform to the integration points between SendGrid and other Twilio products. As the SendGrid representative, this team collaborated with Twilio Flex and Conversations to deliver the Email in Flex product, announced in Signal 2021.


In this role, you’ll:

  • Provide technical leadership by promoting best practices, driving innovation, and designing multi-organizational processes and systems
  • Build and operate your team's services in a distributed production environment used by millions of customers across the globe.
  • Lead incident troubleshooting, remediation, and prevention efforts
  • Cultivate a culture of ownership and growth by mentoring engineers and sharing technical expertise
  • Communicate effectively to executives, to your peers, and internally among your team.
  • Constantly look for areas of improvement in systems and optimize. Be an advocate for balancing tech debt and feature development


Not all applicants will have skills that match a job description exactly. Twilio values diverse experiences in other industries, and we encourage everyone who meets the required qualifications to apply. While having desired qualifications make for a strong candidate, we encourage applicants with alternative experiences to also apply. If your career is just starting or hasn't followed a traditional path, don't let that stop you from considering Twilio. We are always looking for people who will bring something new to the table!


  • 10+ years of work experience building and operating highly scalable products
  • Strong experience with Golang, Java, or similar technologies
  • Strong theoretical fundamentals and hands-on experience designing and implementing highly available, performant fault-tolerant distributed systems.
  • Prior experience leading the technical decision making process including an ability to prioritize effectively and bring stakeholders together
  • Strong communication skills and desire to make an impact and thrive in collaborative and energetic teams.
  • Operational excellence focussed: Understands value of monitoring with metrics and alerting. Knows how to build resilient systems that are maintainable for years to come.
  • Degree in Computer Science or a related field, or equivalent work experience


  • Experience delivering software using Containers/Kubernetes in production environments.
  • Experience with Kafka data pipelining.
  • Understanding of cloud technologies and experience in at least one cloud platform: AWS, GCP, or Azure.


This role will be remote friendly, working closely with teammates in Mountain View, Irvine and Denver, among other remote locations.

Approximately <10% travel is anticipated and is optional.

What We Offer

There are many benefits to working at Twilio, including, in addition to competitive pay, things like generous time-off, ample parental and wellness leave, healthcare, a retirement savings program, and much more. Offerings vary by location.

Twilio thinks big. Do you?

We like to solve problems, take initiative, pitch in when needed, and are always up for trying new things. That's why we seek out colleagues who embody our values something we call Twilio Magic. Additionally, we empower employees to build positive change in their communities by supporting their volunteering and donation efforts.

So, if you're ready to unleash your full potential, do your best work, and be the best version of yourself, apply now!

If this role isn't what you're looking for, please consider other open positions.

Please note this role is open to candidates outside of Colorado as well. The information below is provided for those hired in Colorado only.

If you are a Colorado applicant:

  • The estimated pay range for this role, based in Colorado, is 176,080 - 220,100.
  • Additionally, this role is eligible to participate in Twilio's equity plan.

The successful candidate’s starting salary will be determined based on permissible, non-discriminatory factors such as skills, experience, and geographic location within the state. This role is also eligible to participate in Twilio’s equity plan and for the following benefits: health care insurance, 401(k) retirement account, paid sick time, paid personal time off, paid parental leave.

Misc Info For This Position:

Remote Mix: 100% Remote

Position Level: Principal

Job Type: Full-Time

Regional Restrictions: USA Only

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United States


Job Info:
100% Remote

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