Principal Mobile Engineer, Billing

Twilio is hiring a Principal Mobile Engineer, Billing to join our fully remote team in the United States. As a Principal Mobile Engineer, Billing, you'll design, build, and ship reliable software that scales to millions of users. This is a full-time, work-from-home role open to candidates across the US (Remote — US (West Coast)). About the role You'll design, build, and ship reliable software that scales to millions of users, partnering with a friendly, distributed team across US time zones. We care about outcomes over hours and give you the autonomy, tools, and support to do your best work from home. What you'll do: • Review pull requests and mentor teammates • Improve performance, reliability, and developer experience • Write clean, well-tested, and documented code • Collaborate with product and design on new initiatives • Develop, test, and maintain features across the stack What we offer: • 401(k) retirement plan with company match • Paid parental leave • Flexible working hours across US time zones • 100% remote, work-from-anywhere-in-the-US culture • Comprehensive medical, dental, and vision coverage How we work We're remote-first and async-friendly. Expect clear documentation, regular feedback, supportive teammates, and real opportunities to grow your career. Twilio is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for everyone.

Minimum qualifications: • 7+ years of experience, including leading teams or projects • Proficiency in one or more modern languages (TypeScript, Go, Python, or Java) • Strong communication in a remote, async environment • Solid understanding of data structures, APIs, and databases • US work authorization Nice to have: • Experience working in a fully remote or distributed team • Familiarity with modern collaboration tools (Slack, Notion, Linear)