[Remote] Senior Frontend Engineer, Ads Formats

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Note: The job is a remote job and is open to candidates in USA. Reddit is seeking a Senior Frontend Engineer to strengthen its advertising experiences across desktop and mobile web. The role builds resilient ad-format infrastructure and frontend solutions, partnering with product, design, Ads, and Web Platform teams to improve reliability, performance, accessibility, and measurement.


Responsibilities

  • Develop resilient frontend approaches to reduce ad disruptions, drawing on deep knowledge of JavaScript, TypeScript, HTML, CSS, the DOM, and browser networking
  • Partner with Ads and Web Platform teams to integrate solutions into shared rendering infrastructure, frontend architecture, and build systems
  • Design controlled experiments and phased rollouts to measure effectiveness while protecting site performance, accessibility, and user experience
  • Build instrumentation and monitoring to track mitigation effectiveness, detect regressions, and guide iteration
  • Implement ad rendering, event collection, click handling, browser extensions across multiple Ad formats
  • Contribute to broader foundational improvements in web advertising reliability, performance, and measurement
  • Raise engineering quality through thoughtful technical design, testing, code reviews, documentation, and mentorship

Skills

  • 5+ years of experience building production web applications with JavaScript, TypeScript, and/or React
  • Comfort using Codex, Cursor, Claude, or comparable agentic coding tools in day-to-day software development
  • A track record of independently delivering complex frontend projects from technical design through launch and iteration
  • Sound judgment in frontend architecture, state management, component design, testing, and API integration
  • Experience building polished user interfaces with close attention to usability, performance, accessibility, and maintainability
  • Ability to work effectively through ambiguous product and technical problems
  • Strong communication and collaboration skills across engineering, product, design, and data disciplines
  • Experience using instrumentation, experimentation, or product metrics to understand and improve user experiences
  • A habit of improving engineering quality through code reviews, documentation, and technical mentorship
  • Experience working with various ad formats (video ads, display ads, etc)

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
  • Generous paid Parental Leave
  • Paid Volunteer time off
  • Equity in the form of restricted stock units
  • Depending on the position offered, commission
  • Medical, dental, and vision insurance
  • 401(k) program with employer match
  • Remote work in the United States

Company Overview

  • Reddit is the heart of the internet, where millions of people get together to talk about any topic imaginable. It was founded in 2005, and is headquartered in San Francisco, California, USA, with a workforce of 1001-5000 employees. Its website is

  • Company H1B Sponsorship

  • Reddit, Inc. has a track record of offering H1B sponsorships, with 66 in 2026, 99 in 2025, 63 in 2024, 76 in 2023, 70 in 2022, 68 in 2021, 39 in 2020. Please note that this does not guarantee sponsorship for this specific role.

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