Senior Software Engineer, Identity
Senior Software Engineer building and scaling backend APIs for Stytch's identity platform at Twilio, focusing on authentication, authorization, and agentic/non-human identity use cases. Requires 6+ years experience with high-scale cloud systems, RESTful API design, and on-call availability.
About the job
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 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.
Qualifications
Required:
- 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.
Desired:
- 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.
Skills
Go, TypeScript, DynamoDB, REST APIs, Backend Development, API Design, Cloud Systems, Observability
Similar jobs
Backend Engineering jobs
Temporal
Seattle, WABuild and operate foundational infrastructure for Temporal Cloud, including multi-tenant control-plane systems, database scaling, HA/DR, deployment automation, and CI/CD. Requires senior backend engineering experience with cloud infrastructure, relational databases, high availability, and systems operating at scale.
ZoomInfo
Bethesda, MD
Build and scale high-performance backend services and microservices for a platform serving millions of users. The role requires strong Node.js expertise, distributed-systems experience, and technical leadership, with Java, cloud, and AI-assisted development experience preferred.
ZoomInfo
Bethesda, MD
Senior backend engineer building and scaling Node.js microservices, APIs, and distributed systems for a high-volume platform. Requires 6+ years of backend development experience, technical leadership, and expertise in performance, reliability, and modern development practices.
NinjaTrader
Chicago, IL
Owns the backend service layer for account activation and onboarding, building resilient Node.js and TypeScript workflows for identity verification, funding, and third-party integrations. Requires 6+ years of backend experience, event-driven architecture expertise, and production skills with cloud infrastructure and Kubernetes.
NinjaTrader
Chicago, IL
Leads development and operation of production Rust backend services for account creation, identity verification, and KYC/CIP decisioning. The role requires 6+ years of software development experience, strong async Rust expertise, secure data-handling experience, and the ability to drive cross-team technical design.