{"id":67961,"url":"https://alion.io/job/roblox-distinguished-engineer-machine-learning-systems-economy","title":"Distinguished Engineer, Machine Learning Systems – Economy","company":{"id":246,"name":"Roblox Corporation","domain":"roblox.com","url":"https://alion.io/company/roblox","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":74,"open_postings":34,"ghost_share":0,"stale_share":0.853,"repost_share":0,"time_to_fill_p50_days":68,"computed_at":"2026-10-17T05:46:00Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"lead","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Mateo, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":397460,"max":455720,"currency":"USD","period":"year","gross":null,"usd_annual":455720},"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":true,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Embeddings","optional":false},{"name":"Feature Store","optional":false},{"name":"LLM","optional":false},{"name":"Machine Learning","optional":false},{"name":"Multimodal AI","optional":false},{"name":"RAG","optional":false},{"name":"Recommender Systems","optional":false}],"status":"live","first_seen_at":"2025-10-15T17:08:17Z","employer_posted_date":"2026-10-12","last_verified_at":"2026-10-19T02:44:56Z","board_verified":true,"closed_at":null,"days_open":368,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":368},"description":"Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences- all created by our global community of developers and creators. \nAt Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. \nA career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.\nAt Roblox, we’re building the tools and platform that empower a global community of creators and developers to build immersive experiences and a dynamic virtual economy. Our Economy ML team sits at the heart of this mission, delivering scalable machine learning systems that power personalization, pricing, search, and content understanding across all Economy surfaces: Marketplace, Developer Monetization, Payments, and Avatar.\nWe’re looking for a Distinguished Engineer/Technical Director to lead the strategy and technical direction for ML systems, with a focus on large-scale recommendations, infrastructure, and emerging Generative AI applications. You’ll help build the systems that support retrieval, ranking, generative modeling, and LLM-powered personalization, all at massive scale. This role requires deep systems thinking, hands-on ML expertise, and a vision for how traditional ML and GenAI come together to power the future of the Roblox economy.\nWhy Roblox for ML Systems\nAI/ML is a top company priority, with long-term investment.\nReal-world scale: Power millions of daily economic interactions across ranking, pricing, fraud, and search.\nFull-system ownership: Build and optimize end-to-end ML pipelines; from data ingestion to GPU training to live inference.\nComplex surfaces, rich signals: Design systems for 3D content, UGC, avatar metadata, behavioral and economic signals, not just text or images.\nImpact meets innovation: Shape the future of the Roblox economy while working on frontier ML infra and GenAI workflows.\nYou will:\nSet the technical direction for ML systems powering core economy experiences: personalization, ranking, generative modeling, and more\nBuild and evolve infrastructure for training, serving, and evaluating both traditional ML models and Generative AI models (e.g., embedding-based retrieval, transformers, LLM-based workflows)\nPartner with GenAI teams to explore multi-modal embeddings, avatar generation, and retrieval-augmented generation (RAG) in economic surfacesLead efforts to optimize ML system performance: low-latency serving, efficient GPU training, and cost-aware inference strategies\n\nGuide the development of robust ML pipelines, online feature stores, and experimentation platforms that support both predictive and generative use cases\nCollaborate with EMs, tech leads, and product partners to align technical architecture with business priorities\nMentor senior engineers and help establish a strong technical culture across the Economy ML team\nEnsure robustness, observability, and scalability of ML systems that power millions of daily economic interactions\nOwn the architecture behind some of Roblox’s most foundational ML systems\nWork across groups at Roblox to advance the state of ML/AI at the company.\nHelp scale a fast-growing ML organization and define Roblox’s future economy intelligence stack\nSolve real-world problems with real user impact, powering millions of personalized, intelligent economic interactions every day\nYou have:\n10+ years of experience in software engineering or ML infrastructure, with a strong focus on large-scale ML systems\nDeep expertise in building recommendation systems, ranking infrastructure, or real-time personalization engines\nHands-on experience with Generative AI, such as transformer-based models, LLMs, embeddings, or RAG pipelines\nProven experience with distributed training, model deployment, and GPU-accelerated workflows\nStrong understanding of ML system architecture: data pipelines, feature stores, inference optimization, experimentation tooling\nSystems-first mindset with strong instincts around scale, cost, performance, and reliability\nTrack record of leading large technical initiatives and mentoring senior engineers\nBS, MS, or PhD in Computer Science, Machine Learning, or a related field\nFor roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below. The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand. Therefore, in some circumstances, the actual salary could fall outside of this expected range. This pay range is subject to change and may be modified in the future. All full-time employees are also eligible for equity compensation and for benefits as described on this page.\nAnnual Salary Range\n$397,460—$455,720 USD\nRoles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).\nRoblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process.\nFor US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.","description_format":"text","description_chars":6125,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Mobile Games","Game Development","Metaverse"],"lifecycle":[{"event":"open","at":"2025-10-15T17:08:17Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 247 · green card filings: 82","filings_12m":247,"filings_prev_12m":236,"green_card_filings_12m":82,"median_offered_wage_usd":245038,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+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":189}],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.252,"p_room":0.28,"age_days":366,"expected_fill_days":68,"reasons":["conf:0","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":455720,"is_top_pay":true},"html_url":"https://alion.io/job/roblox-distinguished-engineer-machine-learning-systems-economy","json_url":"https://alion.io/job/roblox-distinguished-engineer-machine-learning-systems-economy.json","meta":{"generated_at":"2026-10-19T05:26:24Z","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":3267,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-20T00:00:00Z"}},"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":246},"rest":"https://alion.io/mcp/rest/get_company?id=246"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Froblox-distinguished-engineer-machine-learning-systems-economy"},{"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%2Froblox-distinguished-engineer-machine-learning-systems-economy"},{"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%2Froblox-distinguished-engineer-machine-learning-systems-economy"},{"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/roblox-distinguished-engineer-machine-learning-systems-economy\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Froblox-distinguished-engineer-machine-learning-systems-economy"}]}