Senior Frontend Engineer, Ads Formats

📋 Description

• Develop resilient frontend approaches to reduce ad disruptions, drawing on deep knowledge of
• Partner with Ads and Web Platform teams to integrate solutions into shared rendering
• Design controlled experiments and phased rollouts to measure effectiveness while protecting site
• Build instrumentation and monitoring to track mitigation effectiveness, detect regressions, and
• Implement ad rendering, event collection, click handling, browser extensions across multiple Ad
• Contribute to broader foundational improvements in web advertising reliability, performance, and

🎯 Requirements

• 5+ years of experience building production web applications with JavaScript, TypeScript, and/or
• Comfort using Codex, Cursor, Claude, or comparable agentic coding tools in day-to-day software
• A track record of independently delivering complex frontend projects from technical design through
• Sound judgment in frontend architecture, state management, component design, testing, and API
• Experience building polished user interfaces with close attention to usability, performance
• Ability to work effectively through ambiguous product and technical problems.

🎁 Benefits

• Comprehensive Healthcare Benefits and Income Replacement Programs
• 401k Match
• Family Planning Support
• Gender-Affirming Care
• Mental Health & Coaching Benefits
• Flexible Vacation & Reddit Global Days Off