Twilio
Communications
SoftwareEngineer(L3)
Neural analysis suggests this role is
optimal for Senior candidates.
“Software Engineer (L3) at Twilio. Skills: Designing, building and operating high-scale, mission critical cloud based production systems, RESTful API design and development, Building backend APIs, Authentication, Authorization, Agentic and non-human identity use cases. 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 l”
What You'll Achieve.
Scale Stytch’s core product; Bring Stytch capabilities to Twilio’s full customer base; Deliver secure, developer-first identity experiences; Build backend APIs that power authentication, authorization, and emerging agentic and non-human identity use cases; Design and deliver high-impact customer-facing features; Evolve our platform for Twilio’s scale; Ship new API surfaces and core authentication flows; Deliver high-impact roadmap features; Integrate platform capabilities; Unblock cross-team initiatives; Stay close to the systems you ship; Improve production quality and resilience; Raise the team’s technical bar and culture
Industry & Context.
Break down complex problems; Make pragmatic tradeoffs
Ability to work non-standard, on-call rotation weekend and holiday hours, May be required to travel occasionally to participate in project or team in-person meetings
What They're Looking For.
Must Have
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, Ability to work non-standard, on-call rotation weekend and holiday hours
Nice to Have
Familiarity with Go, TypeScript, and DynamoDB, Experience building developer tools or SDKs, Experience building and owning products consumed by paying customers, Builder at heart. Through a hobby or your profession, you are passionate about being hands on and seeing your work come to life.
What You'll Do.
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
Operate with deep technical ownership: author design docs
drive key technical decisions
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 observability
incident response and remediation
Mentor and support other engineers through pairing
and knowledge-sharing
helping raise the team’s technical bar and culture
How You'll Work.
Team & Collaboration
Collaborate across Twilio and Stytch teams to align on architecture, integrate platform capabilities, and unblock cross-team initiatives; Partner with Product and Engineering leadership; Mentor and support other engineers through pairing, feedback, and knowledge-sharing
Communication Scope
Excellent written and verbal communication skills
Process & Methodology
Author design docs, Drive key technical decisions, Break down complex problems, Make pragmatic tradeoffs
Full Job Description
Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work, and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! . See yourself at Twilio Join the team as a Senior Software Engineer for Stytch, where you'll shape the next generation of identity products. About the job 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. Responsibilities 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
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