Senior Front End Developer

Spearhead the development of a SaaS platform serving over 500,000 daily active users with a responsive, mobile-first, single-page application architecture. Partnered with Product Managers and cross-functional stakeholders to design and execute A/B tests for new UI features, translating findings into actionable insights that boosted user retention by 15% through adoption of high-performing variants. Leveraged real-time analytics dashboards to monitor user behavior, identify bottlenecks, and prioritize frontend optimizations, leading to a 22% decrease in user drop-off rates. Architect and maintain reusable, modular components integrated across complex product ecosystems using React, Redux, and TypeScript. Conducted Lighthouse audits and analytics-based performance reviews to guide code refactoring and improve page load time by 35% across key user flows. Collaborate with cross-functional teams to deliver pixel-perfect interfaces via tools like Figma and Adobe XD. Authored and maintained frontend documentation, including simplified technical guides for non-developer stakeholders, enabling better cross-team understanding and onboarding.

Led a team of 4 engineers to improve code implementation efficiency by 30% using Next.js, React, Angular, Vue and GraphQL. Delivered B2B and admin dashboards with real-time data sync using Firebase and Supabase. Engineered localization support for multi-language apps and enhanced accessibility features across projects. Translated complex usage data and heatmaps into clear UX improvement proposals for design and executive teams, contributing to a 25% reduction in support tickets. Partnered with product analysts and business leads to interpret event-tracking data and present actionable insights in non-technical terms, increasing feature adoption by 18%. Introduced A/B testing for notification delivery timing, which increased user response rates by 12% for critical alerts.

Led the migration of a legacy admin dashboard template to a modern React/Angular/Vue/Node.js/.NET stack. Applied component-based architecture principles in React, reducing code complexity and increasing reusability. Created and documented RESTful APIs integrated with PostgreSQL, MySQL, and MongoDB for scalable backend operations. Enforced consistent design patterns across the frontend codebase, increasing development speed and maintainability. Implemented bug-tracking and monitoring using Sentry, which reduced unresolved issues by 60%.