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Senior Software Engineer

Stytch

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Location:
United Kingdom

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

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Job Description:

This position is needed to deliver the best-in-class Twilio SDK experience for our customers. Twilio’s SDK engineering team builds robust, powerful SDKs and a GraphQL layer to enable developers build their own Contact Center UIs and real-time AI Contact Center products. Many other teams rely on integrating and exposing their services via the Unified SDK layer to deliver their advanced features to our customers. The position is especially critical in supporting Twilio’s expansion and will be central to creating a core product that provides leverage to all of Twilio’s Flex Contact Center and engineering teams!

Job Responsibility:

  • 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

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 we offer:
  • competitive pay
  • generous time off
  • ample parental and wellness leave
  • healthcare
  • a retirement savings program

Additional Information:

Job Posted:
March 19, 2026

Work Type:
Remote work
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