Requirements

7+ Years of Frontend Experience:
- Building production React applications (web and/or React Native) in high-velocity environments (fintech, consumer apps, SaaS).
- Proven track record shipping A/B-tested, feature-flagged interfaces and rapidly iterating based on metrics.
Technical Skills:
- Advanced React and React Native proficiency, including hooks, context, and performance optimization techniques.
- Hands-on experience with feature-flag platforms or custom A/B frameworks.
- Strong background in TypeScript, component-driven development, and design-system architecture.
- Expertise in front-end performance tuning: code-splitting, lazy loading, memoization, and build-time optimizations.
- Instrumentation and observability skills: integrating with Segment, Mixpanel, Amplitude, or similar for real-time analytics.
- Proficiency with testing frameworks (Jest, Cypress, React Testing Library) and CI/CD pipelines for front-end delivery.

Nice-to-Haves

Nice-to-Haves:
- Prior experience in crypto wallets, payments, or referral/incentive programs.
- Contributions to open-source front-end libraries or published talks on growth engineering.
- Familiarity with mobile push-notification SDKs and deep-link handling.

Feature Development: Ship 2+ end-to-end growth UI features per quarter, each with comprehensive E2E tests, documentation, and performance budgets.
Experimentation Enablement: Integrate feature-flags and build rollout controls so PMs can launch, measure, and rollback UI experiments without developer intervention.
Component Library & Design System: Create and maintain reusable, theme-able React (and React Native) components that power all growth experiments and ensure visual consistency.
Instrumentation & Analytics: Emit structured events (clicks, impressions, variant cohorts) for every feature; collaborate with Data to validate pipelines and dashboards.
Performance & Reliability: Optimize first-paint times (<100 ms) and maintain ≤1 % production error rates; participate in front-end on-call rotation and triage issues within 15 minutes.
Cross-Functional Collaboration: Work closely with Backend, Product, Design, and Data teams to unblock dependencies, align on API contracts, and champion a data-driven development process.
Mentorship & Best Practices: Lead code reviews, pair-programming sessions, and knowledge-sharing Dojos to elevate front-end excellence across the team.