Senior Server Engineer, Identity Platform

Strava

Senior Server Engineer developing core identity platform capabilities for Strava. Leading initiatives in authentication, authorization, and account security systems.

Posted 4/12/2026full-timeSan Francisco • California • 🇺🇸 United StatesSenior💰 $180,375 - $200,850 per yearWebsite

Tech Stack

Tools & technologies

AndroidCassandraDistributed SystemsGoiOSJavaKafkaKubernetesMySQLNoSQLPythonRedisRubyScala

About the role

Key responsibilities & impact

Build core Identity platform capabilities, including authentication, authorization, token lifecycle management, session continuity, and account security systems.
Develop scalable, reliable server-side services that support sign-up, login, account recovery, MFA/passkeys, and cross-application identity.
Design and evolve modern identity protocols, integrating standards like OAuth 2.0, OIDC, WebAuthn, biometrics, and secure token exchange.
Improve identity flows across iOS, Android, and web, balancing frictionless user experience with world-class security.
Partner with cross-functional teams—Product, Security, Trust & Safety, Legal, and Mobile/Web Engineering—to build identity foundations that enable safety, privacy, and growth.
Drive technical excellence, contributing thoughtful architectural perspectives and shaping long-term Identity strategies.
Mentor and support fellow engineers, fostering a collaborative, inclusive, and high-trust environment.
Influence system design across teams, using deep identity expertise to lead discussions around security, performance, and scalability.

Requirements

What you’ll need

7+ years of experience building production backend systems in languages such as Ruby, Java, Scala, Go, or Python.
Proven experience with authentication, authorization, SSO, identity protocols, or account security systems at scale.
Strong knowledge of distributed systems, relational/NoSQL databases, and technologies like MySQL, Redis, Cassandra, Kafka, or Kubernetes.
Familiarity with or interest in modern identity technologies, such as OAuth 2.0/OIDC, WebAuthn, passkeys, MFA, and session management.
A track record of building secure, high-performance services that handle sensitive data responsibly.
Comfort navigating the intersection of security, user experience, and platform architecture.
A collaborative spirit, someone who communicates clearly, lifts others up, and thrives in a team that values mentorship and learning.

Benefits

Comp & perks

Health insurance
Flexible work arrangements
Professional development opportunities

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

RubyJavaScalaGoPythonauthenticationauthorizationidentity protocolsdistributed systemsrelational databases

Soft Skills

collaborationcommunicationmentorshipteamworkleadershipproblem-solvinginclusivitytrust-buildingtechnical excellencearchitectural perspective