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Credit Key · 5 hours ago

Backend Engineer (Copy)

United States

Full-time

Remote

Senior Level, Lead/Staff

6+ years exp

Credit Key is a fast-growing startup on a mission to disrupt B2B lending by providing flexible pay-over-time solutions. They are seeking a Lead Frontend Engineer (Mobile & Web) to lead the development of customer-facing experiences and own major initiatives from implementation to ongoing iteration.

E-CommerceFinancial ServicesPayments

Responsibilities

Lead the development of customer-facing mobile and web experiences, with React Native as the center of gravity and React web as a key companion surface

Own major initiatives end-to-end, including implementation, testing strategy, release coordination, analytics/monitoring, and ongoing iteration

Set technical direction for frontend/mobile: architecture patterns, component standards, performance best practices, and a scalable design system approach

Partner with Product and the VP of Engineering to define realistic MVPs, prioritize the backlog, and deliver iteratively with fast feedback loops

Help improve our overall use of frontend technologies via cross-pod mentoring and code review interactions

Collaborate with backend/platform teams—and when needed, build lightweight result/data-access APIs to support mobile/web experiences

Qualification

ReactTypeScriptReact NativeGitAPIs (RESTful)Backlog managementLeadershipCollaborationMentoringProblem-solving

Required

6+ years building and shipping production software, including significant experience in React and TypeScript

Strong hands-on experience delivering production mobile apps with React Native and Expo (navigation, performance, device behaviors, debugging)

Proven ability to lead: driving technical decisions, mentoring, and owning delivery for complex initiatives

Solid Git fundamentals and a collaborative PR/review workflow mindset

Strong understanding of frontend fundamentals: performance profiling, accessibility, responsive layouts, state management, and testing

Experience working with APIs (RESTful), authentication, and data-fetching patterns; ability to shape contracts with backend teams

Strong backlog management skills: breaking down work, sequencing dependencies, and prioritizing effectively in partnership with Product and the VP of Engineering

Preferred

Experience building or extending simple backend services/APIs (Node/NestJS, Rails, TypeScript, etc.)—especially “backend-for-frontend” style endpoints

Mobile release experience (App Store / Play Store), feature flags, analytics instrumentation, crash reporting, and A/B experimentation

Experience in security-conscious or regulated industries (e.g., FinTech)

Familiarity with CI/CD for mobile/web, monorepos, shared component libraries, and design systems

Docker/container familiarity (helpful for local dev environments and integration testing)