Software Engineer, Identity

Twilio is seeking a Software Engineer to help build the next generation of Stytch identity products for its customer base. The role focuses on creating onboarding and integration experiences, developer-first SDK APIs, and secure authentication and authorization flows while improving product quality, reliability, performance, and security.

Responsibilities:

• Design, build and own the onboarding and integration experience for our customers, including intuitive, reliable SDK APIs that make our product easy to adopt for developers
• Partner closely with Product, Design, and Engineering leadership to shape the team’s roadmap, prioritize high-impact work, and deliver features that unlock customer value quickly
• Build in ambiguity: break down complex authentication and identity problems, make pragmatic tradeoffs, and deliver incremental milestones to production
• Raise the bar for the quality of the products you work on through testing, versioning, documentation, backward compatibility, and smooth migration paths
• Improve performance, reliability, and security of client-side flows, especially those on customers’ critical paths
• Mentor and support other engineers through pairing, feedback, and knowledge-sharing, helping raise the team’s technical bar and culture

Requirements:

• 3+ years of experience as a fullstack engineer delivering customer-facing web products in production using modern frontend technologies (Next.js experience is a must)
• Experience developing and maintaining complex web applications and/or public-facing web SDKs
• Experience building developer-first APIs and tools, with a focus on integration experience
• Proven ability to ship high-quality, reliable software that runs across browsers and environments
• Excellent written and verbal communication skills; comfortable writing design docs and leading technical discussions
• Bachelor's degree in Computer Science or equivalent practical experience
• Schedule: ability to work non-standard, on-call rotation weekend and holiday hours
• This role will be remote, but is not eligible to be hired in San Francisco, CA, Oakland, CA, San Jose, CA, or the surrounding areas
• For this role, you may be required to travel occasionally to participate in project or team in-person meetings
• Experience owning or contributing to open-source libraries or SDKs
• Familiarity with authentication, identity, security, or fraud-adjacent client-side flows
• Experience supporting public SDKs: release automation, semantic versioning, deprecations, and long-term maintenance
• Interest in emerging identity patterns, including agentic/non-human identity and new auth workflows