Lead threat modeling and architecture security reviews, perform hands-on penetration tests of web applications, APIs, mobile clients, and cloud infrastructure, and define secure architecture patterns and remediation guidance. Requires 5+ years in security domains with strong application security architecture and offensive testing experience and proficiency in languages such as Python, .NET, or TypeScript.

Work on backend systems and microservices powering ClassPass (Playlist). Partner with Product, Design, and QA to design, build, and operate reliable, scalable backend services and APIs. Requirements include 8+ years building large-scale SaaS backend systems, strong OOP skills (Java, Kotlin, C#, etc.), SQL/relational database expertise, familiarity with monitoring tools (New Relic, Kibana), and engineering best practices such as automated testing and code reviews. Base salary range in the United States is $151,000 to $200,000.

Join as a Senior Android Engineer on a cross-functional team to create new features for ClassPass mobile apps. Responsibilities include building robust user-friendly apps, separating concerns across app layers, shipping frequently, mentoring junior engineers, performing code reviews, writing technical documentation, and collaborating with product and design. Technologies include Kotlin and Jetpack Compose; experience with large modular codebases and Google Play Store deployments is expected. Flutter experience is a plus. Base salary range (US): $151,300–$201,700/year.