TL;DR

Senior Software Engineer (Backend): Designing, building, and maintaining large-scale backend services with a focus on reliability, availability, scalability, and performance. Focus on continuously improving Twilio’s developer experience for SDK customers, and supporting them by troubleshooting issues and promoting backend and SDK best practices.

Location: Remote - United Kingdom

Company

Twilio shapes the future of communications by delivering innovative solutions to businesses and empowering millions of developers worldwide.

What you will do

  • Design, build, and maintain large-scale backend services with a focus on reliability, availability, scalability, and performance.
  • Lead technical design efforts and ensure architecture decisions are well-documented and future-proof.
  • Collaborate closely with senior engineers, product managers, and cross-functional stakeholders.
  • Champion high-quality engineering practices, including automated testing, maintainable code, and thorough documentation.
  • Own and continuously improve Twilio’s developer experience for SDK customers.
  • Support customers by troubleshooting issues and promoting backend and SDK best practices.

Requirements

  • Bachelor’s/Master’s in Computer Science, Engineering, or related field.
  • 5+ years of experience building and operating cloud-scale backend systems.
  • Strong programming skills in backend languages such as Java or Scala.
  • Experience authoring technical specifications and delivering end-to-end system designs.
  • Strong fundamentals in concurrency and distributed systems.
  • Experience working with AWS or other cloud platforms at scale.

Nice to have

  • Excellent problem-solving and critical thinking skills.
  • Any prior experience building SDKs and GraphQL BFF layer is an added advantage.
  • Ability to establish backend engineering guidelines and represent the team within the broader Twilio engineering organization.

Culture & Benefits

  • Competitive pay, generous time off, and ample parental and wellness leave.
  • Healthcare and a retirement savings program.
  • Opportunity to build relationships with customers and colleagues through occasional travel for project or team in-person meetings.