Senior Software Engineer, Twilio

• 6+ years experience in designing, building and operating high-scale, mission critical cloud based production systems
• Familiarity with a production-grade code base in a modern programming language, applying best practice coding standards and writing high quality code
• Extensive experience with RESTful API design and development
• Bachelor’s degree in Computer Science or related industry experience
• Excellent written and verbal communication skills
• Schedule: ability to work non-standard, on-call rotation weekend and holiday hours

Desirable

• Join the team as a Senior Software Engineer for Stytch, where you'll shape the next generation of identity products
• As a Senior Software Engineer you will help scale Stytch’s core product as we bring Stytch capabilities to Twilio’s full customer base, delivering secure, developer-first identity experiences
• You’ll build backend APIs that power authentication, authorization, and emerging agentic and non-human identity use cases. You’ll partner closely with product and engineering leadership to design and deliver high-impact customer-facing features, and evolve our platform for Twilio’s scale
• This is a rare chance to operate like a startup within Twilio: you’ll work in a high-ownership environment with startup speed, backed by Twilio’s reach and scale
• Build and own backend product capabilities for Stytch’s identity platform on Twilio—shipping new API surfaces and core authentication flows, including agentic and non-human identity use cases
• Partner with Product and Engineering leadership to set direction, translate customer needs into product capabilities, and deliver high-impact roadmap features
• Collaborate across Twilio and Stytch teams to align on architecture, integrate platform capabilities, and unblock cross-team initiatives
• Operate with deep technical ownership: author design docs, drive key technical decisions, review code, and stay close to the systems you ship
• Build in ambiguity—break down complex problems, make pragmatic tradeoffs, and design developer experiences that delight our customers
• Improve production quality and resilience through strong observability, incident response and remediation
• Mentor and support other engineers through pairing, feedback, and knowledge-sharing, helping raise the team’s technical bar and culture

• We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions!