Principal UX Engineer, Ads

Details

Reddit's Ads Design & Research team shapes the end-to-end advertising experience across advertiser tools, consumer ad experiences, measurement, and the systems that connect them.

This strategic, hands-on role sits at the intersection of design and engineering. The UX Engineer will use code as a product-design medium to bring ideas to life, explore and validate new directions, and help teams make better product decisions earlier. The role works across Reddit Ads to shape product direction and build the tools, systems, and ways of working that make it easier to move from an idea to a high-quality product.

The role partners closely with Design, Research, Product, Engineering, and Data Science while remaining deeply involved in the craft.

Responsibilities

• Define and lead the UX engineering strategy across multiple areas of Reddit Ads.
• Build high-quality, functional prototypes and product experiences that help teams explore ideas, test assumptions, and make better decisions.
• Partner with senior cross-functional leaders to shape product direction and bring clarity to complex, ambiguous opportunities.
• Create reusable tools, systems, components, and workflows that make it easier to move from design and research into production.
• Raise the bar for interaction quality, accessibility, performance, and technical craft across the Ads experience.
• Explore how AI can improve advertiser products and the ways teams design and build them.
• Mentor other practitioners and help grow UX Engineering as a capability across Reddit.

Requirements

• Deep experience at the intersection of product design and engineering, with a track record of building sophisticated interactive products.
• Strong hands-on expertise with modern frontend technologies such as React and TypeScript.
• Excellent product and interaction judgment, with the ability to turn complex ideas into intuitive, high-quality experiences.
• Experience working across multiple teams or product areas and influencing product direction beyond a single project.
• Strong systems thinking, with experience creating reusable patterns, platforms, or tools that help other teams move faster.
• Ability to navigate ambiguity, make thoughtful tradeoffs, and bring design, engineering, product, and research perspectives together.
• Strong communication and collaboration skills, particularly with senior cross-functional partners.
• Passion for staying hands-on while helping others do their best work.
• Experience in advertising is helpful but not required. Experience with complex products such as marketplaces, enterprise tools, analytics, commerce, developer platforms, AI-powered experiences, or other multi-sided ecosystems is also relevant.

Benefits

• Comprehensive healthcare benefits and income replacement programs.
• 401(k) with employer match.
• Global benefit programs covering workspace, professional development, caregiving support, and other needs.
• Family planning support.
• Gender-affirming care.
• Mental health and coaching benefits.
• Flexible vacation and paid volunteer time off.
• Generous paid parental leave.
• Equity in the form of restricted stock units; depending on the position offered, the role may also be eligible for a commission.

Additional Information

The posting may span more than one career level. The base salary range is $245,800–$344,100 USD. Final offers are determined by factors including skills, depth of work experience, and relevant licenses or credentials.

In select roles and locations, interviews may be recorded, transcribed, and summarized by artificial intelligence, with the option to opt out before scheduled interviews. Reddit is an equal opportunity employer and provides reasonable accommodations for qualified individuals with disabilities and disabled veterans.