Senior Software Engineer

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
• Proven ability to maintain a high operational excellence bar and mentor junior engineers on reliability and maintainability
• Strong communication skills and the ability to thrive in collaborative, fast-moving teams

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
• Passion for delivering high-quality products and continuously learning new technologies
• Strong sense of ownership and accountability
• Comfortable navigating ambiguity and driving clarity in evolving environments

What You'll Be Doing

• 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
• Contribute to operational excellence by maintaining a high reliability bar and participating in incident response and system improvements

Perks and Benefits

• Competitive pay
• Generous time off
• Ample parental and wellness leave
• Healthcare
• Retirement savings program