Twilio

Senior Software Engineer, Identity & Security Products

Twilio

full-time

Posted on:

Origin:  • 🇺🇸 United States • California, Colorado

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Job Level

Senior

Tech Stack

AWSCloudDistributed SystemsGoJavaJavaScriptPythonReactTypeScript

About the role

  • Drive technical excellence by designing, implementing, and optimizing highly scalable distributed systems and full-stack features that power Twilio's Identity and Security products.
  • Collaborate with cross-functional teams including product, design, and infrastructure to deliver customer-focused solutions.
  • Improve the reliability, scalability, and efficiency of Twilio's Identity and Security’s systems.
  • Drive best practices in software engineering, including code reviews, testing, and deployment processes.
  • Contribute to architectural discussions and technical roadmaps.
  • Communicate technical decisions clearly by articulating trade-offs, customer impact, and ensuring team alignment.
  • Drive operational excellence by prioritizing observability, reliability, security and performance in all deliverables.
  • Mentor junior engineers, fostering a culture of technical excellence, ownership, and continuous learning.

Requirements

  • 4+ years of experience writing production-grade backend code in a modern programming language (e.g., Java, Golang, Python, or similar) with a focus on security, reliability, and performance.
  • Familiarity with front-end technologies like JavaScript, TypeScript, and React (or similar frameworks).
  • Strong fundamentals in distributed systems, event-driven and cellular architectures, and database design.
  • Deep understanding of software engineering best practices, including monitoring, observability, and building maintainable systems.
  • Experience working with AWS cloud-based infrastructure, CI/CD pipelines, testing, and automation.
  • Well-versed in designing and building high-scale, low-latency services/APIs.
  • Strong debugging and troubleshooting skills for complex distributed applications.
  • Effective communication skills and ability to collaborate in a fast-paced team environment.
  • Experience working with stakeholders at all levels, with the ability to thoroughly understand the details and mechanics of how things work as needed.
  • Degree in Computer Science or related field, or equivalent work experience.
  • Desired: Experience with identity and access management, authentication protocols, and security architecture.
  • Desired: Familiarity with modern verification techniques including SMS/voice verification, biometrics, and TOTP.
  • Desired: Experience with fraud detection and prevention systems.
  • Desired: Background in developing APIs with a focus on developer experience.
  • Desired: Experience with on-call support for mission-critical customer systems.
  • Desired: Experience working in a geographically distributed team.
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