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GustoGustoSan Francisco, CA

Software Engineer

Develops secure native Android apps and mobile web-views for identity engineering, focusing on frictionless authentication with biometrics and passkeys. Requires 8+ years mobile experience, strong Kotlin/Android skills, and GraphQL knowledge; collaborates cross-functionally and mentors juniors.

197k – 247k
Hybrid8+ YOEAndroid Engineering

About the role

Responsibilities

  • Architect, build, test, and refine Gusto's native Android app and supporting mobile web-views
  • Build, iterate, and refine experiences that allow users to successfully and easily access key product features and offerings
  • Integrate biometric authentication methods (fingerprint, face unlock) and passkey functionalities to enhance user login security and improve user experience
  • Implement and maintain secure coding practices to protect user data and ensure compliance with privacy regulations
  • Collaborate with our product management, design, and other partner teams to understand technical and customer pain points, come up with solutions, and then prototype, iterate, and launch
  • Mentor other junior engineers
  • Build a product that our customers genuinely love

Requirements

  • At least 6 years of experience in Kotlin Android development and a minimum of 8 years in mobile software engineering
  • Strong knowledge of GraphQL
  • Self-driven mindset, and the ability to work on green field projects
  • Working knowledge of MVVM
  • Experience with Android testing frameworks and best practices
  • Experience implementing biometric authentication (BiometricPrompt API) and passkey solutions (FIDO2/WebAuthn) in mobile applications
  • Experience in constructing platform and common components to enhance scalability, consistency, and maintainability throughout the product development lifecycle
  • Strong critical thinking skills, and a keen attention to detail
  • Strong communication and cross-functional partnership skills
  • Commitment to continuous learning and mentorship

Nice-to-haves

  • Previous knowledge of the Android security model, including the Android Keystore system, encrypted shared preferences, and secure networking practices
  • Previous experience in a security-focused role or with security-related projects
  • Ability to deliver high-quality code across a diverse tech stack
  • Familiarity with analytics and monitoring tools
  • Familiarity with mobile infrastructure such as CI/CD, automated test environments, build & release systems
  • Comfortable dealing with ambiguity, setting milestones and deliverables for the team

Compensation

  • Cash compensation targeted at $197,000 - $247,000 for San Francisco, Seattle & New York and $163,000 - $204,000 for Denver

Skills

KotlinAndroidGraphQLMvvmBiometricprompt ApiFido2WebauthnAndroid KeystoreCI/CD

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