{"id":99024,"url":"https://alion.io/job/reddit-principal-ux-engineer-ads","title":"Principal UX Engineer, Ads","company":{"id":16,"name":"Reddit","domain":"reddit.com","url":"https://alion.io/company/reddit","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":79,"open_postings":27,"ghost_share":0,"stale_share":0.63,"repost_share":0,"time_to_fill_p50_days":68,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Design","role_family":"Design","seniority":"lead","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":245800,"max":344100,"currency":"USD","period":"year","gross":null,"usd_annual":344100},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"React.js","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-08-11T21:33:21Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-11-01T13:55:48Z","board_verified":true,"closed_at":null,"days_open":81,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":81},"description":"Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com.\nReddit’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.\nWe’re looking for a Principal UX Engineer who sees code as a product-design medium: a way to make ideas tangible, connect prototypes to real systems and data, and help teams move from exploration to engineering-ready product direction faster.\nThis is a strategic, hands-on role at the intersection of design and engineering. You’ll work across Reddit Ads to shape product direction, build production-adjacent prototypes and tools, and help establish UX Engineering as a capability for the Ads Design team.\nYou’ll partner closely with Design, Research, Product, Engineering, and Data Science while staying deeply involved in the craft.\nWhat You’ll Do\nDefine and lead the UX Engineering strategy across multiple areas of Reddit Ads.\nBuild high-quality functional prototypes, workflow tools, agents, and PR-ready product experiences that help teams explore ideas, test assumptions, and move faster from design intent to engineering review.\nPartner with senior cross-functional leaders to shape product direction and bring clarity to complex, ambiguous opportunities.\nCreate reusable tools, systems, components, and workflows that make it easier to move from design and research into production.\nRaise the bar for interaction quality, accessibility, performance, and technical craft across the Ads experience.\nBuild AI-native workflows, skills, agents, and tools that improve how Ads Design explores, prototypes, collaborates, and ships.\nMentor other practitioners and help grow UX Engineering as a capability across Reddit.\nWhat We’re Looking For\nDeep experience at the intersection of product design and engineering, with a track record of building sophisticated interactive products.\nStrong hands-on expertise with modern frontend technologies such as React and TypeScript.\nExperience building production-adjacent prototypes, internal tools, systems, or frontend infrastructure that other designers and engineers can use.\nExcellent product and interaction judgment, with the ability to turn complex ideas into intuitive, high-quality experiences.\nExperience working across multiple teams or product areas and influencing product direction beyond a single project.\nStrong systems thinking, with experience creating reusable patterns, platforms, or tools that help other teams move faster.\nFluency with AI-assisted coding, agents, and advanced prototyping workflows.\nThe ability to navigate ambiguity, make thoughtful tradeoffs, and bring design, engineering, product, and research perspectives together.\nStrong communication and collaboration skills, particularly with senior cross-functional partners.\nA portfolio or body of work that shows use cases, technical architecture, systems thinking, organizational complexity, and collaboration with engineering teams, not only polished UI outcomes.\nA passion for staying hands-on while helping others do their best work.\nExperience 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.\nBenefits:\nComprehensive Healthcare Benefits and Income Replacement Programs\n401k with Employer Match\nGlobal Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support\nFamily Planning Support\nGender-Affirming Care\nMental Health & Coaching Benefits\nFlexible Vacation & Paid Volunteer Time Off\nGenerous Paid Parental Leave \nPay Transparency:\nThis job posting may span more than one career level.\nIn addition to base salary, this job is eligible to receive equity in the form of restricted stock units, and depending on the position offered, it may also be eligible to receive a commission. Additionally, Reddit offers a wide range of benefits to U.S.-based employees, including medical, dental, and vision insurance, 401(k) program with employer match, generous time off for vacation, and parental leave. To learn more, please visit https://www.redditinc.com/careers/.\nTo provide greater transparency to candidates, we share base salary ranges for all US-based job postings regardless of state. We set standard base pay ranges for all roles based on function, level, and country location, benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below.\nThe base salary range for this position is:\n$245,800—$344,100 USD\nIn select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews.\nDuring the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our Candidate Privacy Policy for Potential Employees and Contractors.\nReddit is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If, due to a disability, you need an accommodation during the interview process, please let your recruiter know.","description_format":"text","description_chars":6641,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["401k plan","Equity","Parental leave","Professional development","Restricted stock units","Vision insurance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Online Forums & Community Platforms","Social Networks"],"lifecycle":[{"event":"open","at":"2026-08-11T21:33:21Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 92 · green card filings: 20","filings_12m":92,"filings_prev_12m":89,"green_card_filings_12m":20,"median_offered_wage_usd":258929,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":1}],"liveness":{"score":24,"band":"cold","label":"Long shot","p_open":1,"p_active":0.548,"p_room":0.44,"age_days":81,"expected_fill_days":68,"reasons":["conf:0","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-11-01T06:10:25Z"},"pay":{"stated_usd_annual":344100,"is_top_pay":true},"html_url":"https://alion.io/job/reddit-principal-ux-engineer-ads","json_url":"https://alion.io/job/reddit-principal-ux-engineer-ads.json","meta":{"generated_at":"2026-11-01T16:19:49Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":25148,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":16},"rest":"https://alion.io/mcp/rest/get_company?id=16"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Freddit-principal-ux-engineer-ads"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Freddit-principal-ux-engineer-ads"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Freddit-principal-ux-engineer-ads"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/reddit-principal-ux-engineer-ads\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Freddit-principal-ux-engineer-ads"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":99024}},{"tool":"search_jobs","arguments":{"company":"reddit.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":99024},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}