[Remote] Senior Frontend Engineer, Ads Formats

October 31, 2026

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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