Senior Software Engineer, Frontend

About the role

Marqeta is seeking a technical leader to build our new UX Toolkit for web and mobile. You will focus on creating cross-platform solutions that power our card issuing infrastructure for major global brands.

Key facts

What you'll do

• Partner with product and design teams to build cardholder experiences.
• Lead the creation of React Native SDKs and applications.
• Architect reusable components following modern design patterns.
• Improve mobile performance through rendering strategies, lazy loading, and code splitting.
• Define technical roadmaps and system architecture.
• Mentor junior engineers and promote engineering standards like automated testing and CI/CD.

Requirements

• 5+ years of experience in web and mobile development with a focus on React Native.
• Proficiency with React Navigation, Expo, and native module development (Swift, Kotlin, Objective-C, or Java).
• Experience bridging React Native with native iOS and Android components.
• Deep knowledge of React.js, state management (Redux, Context API), and component-based architecture.
• Experience with mobile performance profiling and memory management.
• Ability to integrate GraphQL and RESTful APIs.
• Familiarity with mobile authentication (OAuth, biometrics) and CI/CD tools (Fastlane, Bitrise, App Center).

Nice to have

• Experience with Swift or Kotlin for native integration.
• Background in Fintech or Payments.
• Knowledge of App Store and Google Play Store release processes.
• Experience using TypeScript.
• Familiarity with WebAssembly or PWAs.

Skills & tools

• React Native, JavaScript, TypeScript, HTML, CSS, Git.

Practical notes

• Marqeta operates on a Flexible First model.
• Compensation includes an annual bonus, equity, health insurance, retirement savings, and a monthly remote work stipend.
• Benefits include up to 20 weeks of parental leave and annual development funds.
• Hiring process: Recruiter call, pair programming, engineering leader interview, and a three-round virtual onsite.