Principal UX Engineer

Who you are

• 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
• The 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
• A passion for staying hands-on while helping others do their best work
• Experience in advertising is helpful, but it isn’t required. We’re also interested in people who have worked on complex products such as marketplaces, enterprise tools, analytics, commerce, developer platforms, AI-powered experiences, or other multi-sided ecosystems

What the job involves

• 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
• We’re looking for a Principal UX Engineer who sees code as a product-design medium
• You’ll use it to bring ambitious ideas to life, explore and validate new directions, and help teams make better product decisions earlier
• This is a strategic, hands-on role at the intersection of design and engineering
• You’ll work 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
• You’ll partner closely with Design, Research, Product, Engineering, and Data Science while staying deeply involved in the craft
• 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 both our advertiser products and the way our teams design and build them
• Mentor other practitioners and help grow UX Engineering as a capability across Reddit

Benefits

• Comprehensive health benefits
• Flexible vacation & Reddit global days off
• Family planning funds & 4+ months paid parental leave
• Personal & professional development funds
• Paid volunteer time off
• Workspace & home office benefits