{"landing":{"id":5848,"type":"technology","title":"RLlib Jobs - Remote & On-site","description":"RLlib jobs hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $228,024/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.","url":"https://alion.io/jobs/rllib","json_url":"https://alion.io/jobs/rllib.json","filters":{"technology_ids_1":"4657"},"updated_at":"2026-10-16T13:30:54Z"},"aggregates":{"jobs":43,"companies":22,"posted_last_7_days":7,"companies_active_90_days":16,"work_mode":{"remote":3,"hybrid":2,"on_site":38},"visa_sponsorship":1,"relocation":11,"equity":2,"salary_stated_n":15,"salary_estimated_n":21,"marked_inactive":14,"salary_usd_annual":{"p10":141500,"avg":226531,"p90":300000},"salary_stated":{"all":{"n":15,"p25":172400,"p50":206800,"p75":252100},"by_seniority":[]},"salary_estimated":{"all":{"n":21,"p25":93000,"p50":144000,"p75":202000},"by_seniority":[]},"top_technologies":[{"name":"Ray","jobs":43},{"name":"RLlib","jobs":43},{"name":"PyTorch","jobs":40},{"name":"Python","jobs":39},{"name":"Stable-Baselines3","jobs":34},{"name":"Reinforcement Learning","jobs":31},{"name":"C++","jobs":26},{"name":"Machine Learning","jobs":24}],"top_locations":[{"name":"China","jobs":4},{"name":"Japan","jobs":4},{"name":"United States","jobs":3},{"name":"United Arab Emirates","jobs":2},{"name":"Brazil","jobs":1},{"name":"Denmark","jobs":1},{"name":"Switzerland","jobs":1}],"top_companies":[{"name":"Arka","url":"https://alion.io/company/arka-com","jobs":10},{"name":"CACI International","url":"https://alion.io/company/caci-international","jobs":6},{"name":"MCD3","url":"https://alion.io/company/mcd3","jobs":3},{"name":"NIO","url":"https://alion.io/company/nio","jobs":2},{"name":"Spirit AI","url":"https://alion.io/company/spirit-ai","jobs":2},{"name":"Centific","url":"https://alion.io/company/centific","jobs":2},{"name":"NEURA Robotics","url":"https://alion.io/company/neura-robotics","jobs":2},{"name":"Technology Innovation Institute","url":"https://alion.io/company/technology-innovation-institute","jobs":2},{"name":"Amazon","url":"https://alion.io/company/amazon","jobs":1},{"name":"Caterpillar","url":"https://alion.io/company/caterpillar","jobs":1},{"name":"Leega Consultoria","url":"https://alion.io/company/leega","jobs":1},{"name":"UnitedHealth Group","url":"https://alion.io/company/unitedhealthgrp","jobs":1}]},"content":{"sections":[{"title":"The market right now","text":"Alion currently lists 43 open RLlib jobs from 22 companies. 7 of them were posted or refreshed in the last seven days. 16 of the employers have posted something in the last three months, which is the pool worth watching if you are starting a search now. 14 of the 43 carry the marks of a stale or abandoned posting - open far beyond the usual time to fill, reposted, or on a board that mostly never closes a role - and are marked as likely inactive; the list can hide them. Every listing links straight to the employer, so you apply on their own board rather than through an intermediary."},{"title":"What these roles pay","text":"15 of these RLlib jobs state pay directly. Across them the middle half of the market sits between $172K and $252K a year, with a median of $207K. Figures are gross annual amounts converted to US dollars, so roles in different currencies stay comparable."},{"title":"Where the work is","text":"The largest concentrations of these roles are China (4), Japan (4), United States (3), United Arab Emirates (2), and Brazil (1). 7% of the listings are fully remote and a further 5% are hybrid, so a large part of this market is open to you regardless of where you live."},{"title":"Who is hiring","text":"The employers with the most open RLlib jobs right now are Arka (10), CACI International (6), MCD3 (3), NIO (2), Spirit AI (2), and Centific (2). Each company page on Alion carries its size, funding stage, tech stack and every other position it has open, so you can judge the employer before you spend an evening on the application."},{"title":"What employers ask for","text":"Reading across the current listings, the tools that come up most often are Ray (43), RLlib (43), PyTorch (40), Python (39), Stable-Baselines3 (34), Reinforcement Learning (31), C++ (26), and Machine Learning (24). The counts are how many of these openings name each one, which is a better guide to what is actually being hired for than a generic skills list."},{"title":"Relocation, visas and equity","text":"Of the current RLlib jobs, 1 states visa sponsorship, 11 offer a relocation package, and 2 include equity. These are filters on the list above, so you can narrow it to the ones that make a move possible for you."}],"faq":[{"question":"How many RLlib jobs are open right now?","answer":"There are 43 open RLlib jobs on Alion from 22 companies. The list was last refreshed on October 16, 2026."},{"question":"Are all of these RLlib jobs still being filled?","answer":"Probably not all of them. 14 of the 43 show the marks Alion reads as a likely inactive posting: open far longer than employers usually take to fill such a role, reposted several times, or sitting on a board that rarely closes anything. They stay listed with a warning, and the list can hide them with one switch."},{"question":"What do RLlib jobs pay?","answer":"The median is $207K a year, and the middle half of the market falls between $172K and $252K. This is based on the 15 listings that state pay."},{"question":"Are any of these roles remote?","answer":"3 of the 43 listings (7%) are fully remote, and you can filter the list down to them in one click."},{"question":"Which companies are hiring?","answer":"The most active employers right now are Arka, CACI International, MCD3, NIO, Spirit AI, and Centific. Each has its own page on Alion with the rest of its open roles."},{"question":"Can I get visa sponsorship or relocation?","answer":"Yes - of the current listings, 1 state visa sponsorship and 11 offer a relocation package. Both are filters on the jobs page."},{"question":"How do I apply?","answer":"Open any listing and apply on the employer's own board through the link on the page. No account is required to browse or to apply."}]},"jobs":[{"id":2659899,"url":"https://alion.io/job/caterpillar-principal-architect-ai-factory-physical-ai","json_url":"https://alion.io/job/caterpillar-principal-architect-ai-factory-physical-ai.json","title":"Principal Architect - AI Factory (Physical AI)","company":{"id":176554,"name":"Caterpillar","url":"https://alion.io/company/caterpillar"},"work_mode":"on_site","salary":{"min":159120,"max":258570,"currency":"USD","period":"year"},"status":"live","updated_at":"2026-10-15T00:00:00+00:00"},{"id":2093773,"url":"https://alion.io/job/unitedhealth-group-lead-aiml-engineer-eden-prairie-mn","json_url":"https://alion.io/job/unitedhealth-group-lead-aiml-engineer-eden-prairie-mn.json","title":"Lead AI/ML Engineer- Eden Prairie, MN","company":{"id":1043512,"name":"UnitedHealth 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