{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Job: Machine Learning Systems Engineer, RL Engineering","description":"Anthropic job signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/81c8c6ea-939b-4336-880c-7a3d309294a6","json_url":"https://onlylabs.fyi/signals/81c8c6ea-939b-4336-880c-7a3d309294a6/signal.json","generated_at":"2026-06-11T03:55:00.100129+00:00","org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab","category_label":"Frontier lab","dossier_url":"https://onlylabs.fyi/labs/anthropic","dossier_json_url":"https://onlylabs.fyi/labs/anthropic/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/81c8c6ea-939b-4336-880c-7a3d309294a6","signal_json":"https://onlylabs.fyi/signals/81c8c6ea-939b-4336-880c-7a3d309294a6/signal.json","source":"https://job-boards.greenhouse.io/anthropic/jobs/4952051008","lab_dossier":"https://onlylabs.fyi/labs/anthropic","lab_dossier_json":"https://onlylabs.fyi/labs/anthropic/dossier.json","analysis":"https://onlylabs.fyi/analysis/anthropic","analysis_json":"https://onlylabs.fyi/analysis/anthropic/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/anthropic/evidence.json","category":"https://onlylabs.fyi/frontier","category_json":"https://onlylabs.fyi/frontier.json","category_feed":"https://onlylabs.fyi/frontier/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json","topic":"https://onlylabs.fyi/topics/hiring","topic_signals_json":"https://onlylabs.fyi/topics/hiring/signals.json","topic_feed":"https://onlylabs.fyi/topics/hiring/feed.xml","data_business":{"radar":"https://onlylabs.fyi/data-radar","radar_json":"https://onlylabs.fyi/data-radar.json","opportunities":"https://onlylabs.fyi/opportunities","opportunities_json":"https://onlylabs.fyi/opportunities.json","lanes":[{"key":"infrastructure","label":"Infrastructure","url":"https://onlylabs.fyi/data-radar/infrastructure","json_url":"https://onlylabs.fyi/data-radar/infrastructure/signals.json"}]}},"answer_pack":{"answer":"Anthropic opened Machine Learning Systems Engineer, RL Engineering (San Francisco, CA | New York City, NY | Seattle, WA). This hiring signal is demand evidence for teams, locations, and technical bets being staffed. High-signal details: location San Francisco, CA | New York City, NY | Seattle, WA · Routine job opening at notable lab. onlylabs links this event to 1 captured evidence page and 6 related job signals. It also maps to Infrastructure in the data-business radar.","signal_desk":"hiring","source_context":{"source_url":"https://job-boards.greenhouse.io/anthropic/jobs/4952051008","source_host":"job-boards.greenhouse.io","occurred_at":"2026-04-01T14:49:08+00:00","first_seen_at":"2026-06-05T05:42:57.438244+00:00","date_source":"source","context":"San Francisco, CA | New York City, NY | Seattle, WA"},"context_markers":[{"label":"Lab","value":"Anthropic","source":"signal"},{"label":"Signal desk","value":"hiring","source":"signal"},{"label":"Source host","value":"job-boards.greenhouse.io","source":"source"},{"label":"Location","value":"San Francisco, CA | New York City, NY | Seattle, WA","source":"signal"},{"label":"ATS","value":"greenhouse","source":"source"},{"label":"Notability","value":"Routine job opening at notable lab","source":"signal"},{"label":"Radar lane","value":"Infrastructure","source":"radar"},{"label":"Matched term","value":"systems","source":"radar"},{"label":"Watch term","value":"RL environments","source":"evidence"},{"label":"Watch term","value":"Infrastructure","source":"evidence"},{"label":"Watch term","value":"Safety and alignment","source":"evidence"}],"evidence_coverage":{"target_pages":1,"captured_pages":1,"readable_pages":1,"capture_methods":["plain"],"missing_page_urls":[],"failed_page_urls":[],"blocked_page_urls":[],"page_urls":["https://job-boards.greenhouse.io/anthropic/jobs/4952051008"],"related_signals":6,"has_source_url":true,"latest_page_fetched_at":"2026-06-11T03:55:00.100129+00:00"},"data_business":{"matches":true,"lanes":[{"key":"infrastructure","label":"Infrastructure","url":"https://onlylabs.fyi/data-radar/infrastructure","json_url":"https://onlylabs.fyi/data-radar/infrastructure/signals.json"}],"matched_terms":["systems"],"score":15,"reason":"Anthropic has a job signal matching infrastructure."},"agent_handoff":{"signal_json":"https://onlylabs.fyi/signals/81c8c6ea-939b-4336-880c-7a3d309294a6/signal.json","dossier_json":"https://onlylabs.fyi/labs/anthropic/dossier.json","analysis_json":"https://onlylabs.fyi/analysis/anthropic/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/anthropic/evidence.json","topic_signals_json":"https://onlylabs.fyi/topics/hiring/signals.json","topic_feed":"https://onlylabs.fyi/topics/hiring/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json","data_radar_json":"https://onlylabs.fyi/data-radar.json","opportunities_json":"https://onlylabs.fyi/opportunities.json"},"analysis_playbook":{"objective":"Turn open roles into leading indicators for teams, locations, infrastructure needs, eval work, data demand, and commercialization buildout.","evidence_focus":["role title","team or function","location","job description","data, eval, infra, safety, product, and GTM terms"],"extraction_questions":["Which teams are hiring repeatedly?","Which locations or hubs are becoming more important?","Which roles imply data, evaluation, infrastructure, or platform spend?","Which labs have hiring signals without a fresh standing analysis?"],"signal_questions":["What demand signal does this role create for teams, locations, infrastructure, evals, or data workflows?","Which teams are hiring repeatedly?","Which locations or hubs are becoming more important?","Which data-business lane explains this signal: Infrastructure?","Do the 6 related job signals show a repeated pattern?"],"output_fields":["org","team","location","role_theme","data_business_lane","evidence_url"],"data_business_relevance":"Hiring is the earliest demand signal for where frontier labs may need data products, eval tooling, infra vendors, and workflow support.","required_sources":[{"label":"signal_json","url":"https://onlylabs.fyi/signals/81c8c6ea-939b-4336-880c-7a3d309294a6/signal.json","required":true},{"label":"source","url":"https://job-boards.greenhouse.io/anthropic/jobs/4952051008","required":true},{"label":"dossier_json","url":"https://onlylabs.fyi/labs/anthropic/dossier.json","required":true},{"label":"analysis_evidence_json","url":"https://onlylabs.fyi/analysis/anthropic/evidence.json","required":true},{"label":"topic_signals_json","url":"https://onlylabs.fyi/topics/hiring/signals.json","required":false},{"label":"data_radar_json","url":"https://onlylabs.fyi/data-radar.json","required":true}],"expected_output":["one-paragraph source-grounded interpretation","data-business implication","confidence and missing evidence","recommended next source to inspect"],"prompt_seed":"Using only the linked onlylabs JSON, captured source context, and cited evidence, analyze Anthropic's job signal \"Machine Learning Systems Engineer, RL Engineering\" for frontier lab strategy and data-business implications."},"semantic_triples":[{"subject":"Anthropic","predicate":"opened","object":"role Machine Learning Systems Engineer, RL Engineering","text":"Anthropic opened role Machine Learning Systems Engineer, RL Engineering."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"is classified as","object":"job signal","text":"Machine Learning Systems Engineer, RL Engineering is classified as job signal."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"belongs to","object":"hiring desk","text":"Machine Learning Systems Engineer, RL Engineering belongs to hiring desk."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has context","object":"San Francisco, CA | New York City, NY | Seattle, WA","text":"Machine Learning Systems Engineer, RL Engineering has context San Francisco, CA | New York City, NY | Seattle, WA."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Machine Learning Systems Engineer, RL Engineering has evidence coverage 1 captured evidence page."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"matches data-business lanes","object":"Infrastructure","text":"Machine Learning Systems Engineer, RL Engineering matches data-business lanes Infrastructure."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has captured page count","object":"1","text":"Machine Learning Systems Engineer, RL Engineering has captured page count 1."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has readable page count","object":"1","text":"Machine Learning Systems Engineer, RL Engineering has readable page count 1."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has related signal count","object":"6","text":"Machine Learning Systems Engineer, RL Engineering has related signal count 6."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has analysis playbook objective","object":"Turn open roles into leading indicators for teams, locations, infrastructure needs, eval work, data demand, and commercialization buildout.","text":"Machine Learning Systems Engineer, RL Engineering has analysis playbook objective Turn open roles into leading indicators for teams, locations, infrastructure needs, eval work, data demand, and commercialization buildout.."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has source host","object":"job-boards.greenhouse.io","text":"Machine Learning Systems Engineer, RL Engineering has source host job-boards.greenhouse.io."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has lab","object":"Anthropic","text":"Machine Learning Systems Engineer, RL Engineering has lab Anthropic."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has signal desk","object":"hiring","text":"Machine Learning Systems Engineer, RL Engineering has signal desk hiring."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has source host","object":"job-boards.greenhouse.io","text":"Machine Learning Systems Engineer, RL Engineering has source host job-boards.greenhouse.io."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has location","object":"San Francisco, CA | New York City, NY | Seattle, WA","text":"Machine Learning Systems Engineer, RL Engineering has location San Francisco, CA | New York City, NY | Seattle, WA."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has ats","object":"greenhouse","text":"Machine Learning Systems Engineer, RL Engineering has ats greenhouse."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has notability","object":"Routine job opening at notable lab","text":"Machine Learning Systems Engineer, RL Engineering has notability Routine job opening at notable lab."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has radar lane","object":"Infrastructure","text":"Machine Learning Systems Engineer, RL Engineering has radar lane Infrastructure."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has matched term","object":"systems","text":"Machine Learning Systems Engineer, RL Engineering has matched term systems."}]},"intelligence":{"signal_desk":"hiring","answer":"Anthropic opened Machine Learning Systems Engineer, RL Engineering (San Francisco, CA | New York City, NY | Seattle, WA). This hiring signal is demand evidence for teams, locations, and technical bets being staffed. High-signal details: location San Francisco, CA | New York City, NY | Seattle, WA · Routine job opening at notable lab. onlylabs links this event to 1 captured evidence page and 6 related job signals. It also maps to Infrastructure in the data-business radar.","semantic_triples":[{"subject":"Anthropic","predicate":"opened","object":"role Machine Learning Systems Engineer, RL Engineering","text":"Anthropic opened role Machine Learning Systems Engineer, RL Engineering."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"is classified as","object":"job signal","text":"Machine Learning Systems Engineer, RL Engineering is classified as job signal."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"belongs to","object":"hiring desk","text":"Machine Learning Systems Engineer, RL Engineering belongs to hiring desk."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has context","object":"San Francisco, CA | New York City, NY | Seattle, WA","text":"Machine Learning Systems Engineer, RL Engineering has context San Francisco, CA | New York City, NY | Seattle, WA."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Machine Learning Systems Engineer, RL Engineering has evidence coverage 1 captured evidence page."},{"subject":"Machine Learning Systems Engineer, RL Engineering","predicate":"matches data-business lanes","object":"Infrastructure","text":"Machine Learning Systems Engineer, RL Engineering matches data-business lanes Infrastructure."}]},"signal":{"id":"81c8c6ea-939b-4336-880c-7a3d309294a6","url":"https://onlylabs.fyi/signals/81c8c6ea-939b-4336-880c-7a3d309294a6","json_url":"https://onlylabs.fyi/signals/81c8c6ea-939b-4336-880c-7a3d309294a6/signal.json","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/4952051008","title":"Machine Learning Systems Engineer, RL Engineering","summary":"Anthropic opened a hiring signal. onlylabs watches roles as demand indicators for teams, locations, and technical bets.","context":"San Francisco, CA | New York City, NY | Seattle, WA","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-04-01T14:49:08+00:00","first_seen_at":"2026-06-05T05:42:57.438244+00:00","date_source":"source","evidence_coverage":{"target_pages":1,"captured_pages":1,"readable_pages":1,"capture_methods":["plain"],"missing_page_urls":[],"failed_page_urls":[],"blocked_page_urls":[],"page_urls":["https://job-boards.greenhouse.io/anthropic/jobs/4952051008"]},"facets":{"location":"San Francisco, CA | New York City, NY | Seattle, WA","ats":"greenhouse"},"traction":{"github_stars":null,"hn_points":null,"hn_comments":null,"hn_story_id":null,"hf_downloads":null,"hf_likes":null},"data_radar":{"lanes":[{"key":"infrastructure","label":"Infrastructure","url":"https://onlylabs.fyi/data-radar/infrastructure"}],"score":15,"matched_terms":["systems"],"reason":"Anthropic has a job signal matching infrastructure."}},"primary_evidence_page":{"url":"https://job-boards.greenhouse.io/anthropic/jobs/4952051008","final_url":"https://job-boards.greenhouse.io/anthropic/jobs/4952051008","title":"Machine Learning Systems Engineer, RL Engineering","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T03:55:00.100129+00:00","bytes":94937,"raw_path":"cf533c688d94cc43e9e5729d70844f161b0e13d50dd6a96f6d156920f244d0d6.html","content_hash":"41c694be57575171046e7294f68b71bc210c725de4794e27bee438d4044a5230","excerpt_chars":1200,"truncated":true,"excerpt":"Job Application for Machine Learning Systems Engineer, RL Engineering at Anthropic Back to jobs Machine Learning Systems Engineer, RL Engineering San Francisco, CA | New York City, NY | Seattle, WA Apply About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. About the role: You want to build the cutting-edge systems that train AI models like Claude. You're excited to work at the frontier of machine learning, implementing and improving advanced techniques to create ever more capable, reliable and steerable AI. As an ML Systems Engineer on our Reinforcement Learning Engineering team, you'll be responsible for the critical algorithms and infrastructure that our researchers depend on to train models. Your work will directly enable breakthroughs in AI capabilities and safety. You'll focus obsessively on improving the performance, robustness, and usability of these systems so our research can progress as..."},"evidence_pages":[{"url":"https://job-boards.greenhouse.io/anthropic/jobs/4952051008","final_url":"https://job-boards.greenhouse.io/anthropic/jobs/4952051008","title":"Machine Learning Systems Engineer, RL Engineering","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T03:55:00.100129+00:00","bytes":94937,"raw_path":"cf533c688d94cc43e9e5729d70844f161b0e13d50dd6a96f6d156920f244d0d6.html","content_hash":"41c694be57575171046e7294f68b71bc210c725de4794e27bee438d4044a5230","excerpt_chars":1200,"truncated":true,"excerpt":"Job Application for Machine Learning Systems Engineer, RL Engineering at Anthropic Back to jobs Machine Learning Systems Engineer, RL Engineering San Francisco, CA | New York City, NY | Seattle, WA Apply About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. About the role: You want to build the cutting-edge systems that train AI models like Claude. You're excited to work at the frontier of machine learning, implementing and improving advanced techniques to create ever more capable, reliable and steerable AI. As an ML Systems Engineer on our Reinforcement Learning Engineering team, you'll be responsible for the critical algorithms and infrastructure that our researchers depend on to train models. Your work will directly enable breakthroughs in AI capabilities and safety. You'll focus obsessively on improving the performance, robustness, and usability of these systems so our research can progress as..."}],"related_signals":[{"id":"7545b64a-3699-4461-aa7b-591f0ff8399b","url":"https://onlylabs.fyi/signals/7545b64a-3699-4461-aa7b-591f0ff8399b","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5186852008","title":"Product Support Specialist (Singapore)","context":"Singapore","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-11T05:01:19+00:00","first_seen_at":"2026-06-05T05:42:57.438244+00:00","date_source":"greenhouse.updated_at"},{"id":"46fed67d-fb9e-4ec4-8fa5-e065cb534ade","url":"https://onlylabs.fyi/signals/46fed67d-fb9e-4ec4-8fa5-e065cb534ade","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5186965008","title":"Product Support Specialist (Singapore - Weekend Coverage)","context":"Singapore","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-11T05:01:17+00:00","first_seen_at":"2026-06-05T05:42:57.438244+00:00","date_source":"greenhouse.updated_at"},{"id":"22609fbe-e554-4224-8abb-7130c97381bf","url":"https://onlylabs.fyi/signals/22609fbe-e554-4224-8abb-7130c97381bf","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/4979585008","title":"Product Support Specialist","context":"Boston, MA; San Francisco, CA | New York City, NY | Seattle, WA; Washington, DC","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-11T04:56:33+00:00","first_seen_at":"2026-06-05T05:42:57.438244+00:00","date_source":"greenhouse.updated_at"},{"id":"703f4263-e360-4fec-ae39-d05490a48eca","url":"https://onlylabs.fyi/signals/703f4263-e360-4fec-ae39-d05490a48eca","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5253274008","title":"Enterprise Threat Intelligence Lead, Global Safety, Intelligence & Security ","context":"San Francisco, CA | Seattle, WA | New York City, NY | Washington, DC","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-11T00:38:05+00:00","first_seen_at":"2026-06-11T07:01:03.928848+00:00","date_source":"greenhouse.updated_at"},{"id":"7828ae51-3421-41fd-961f-9e4cd74e828c","url":"https://onlylabs.fyi/signals/7828ae51-3421-41fd-961f-9e4cd74e828c","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5119468008","title":"Staff Software Engineer, People Products","context":"Remote-Friendly (Travel Required) | San Francisco, CA","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-11T00:21:00+00:00","first_seen_at":"2026-06-05T05:42:57.438244+00:00","date_source":"greenhouse.updated_at"},{"id":"e42bec4f-48c2-47da-b1ac-84d97f97f0f5","url":"https://onlylabs.fyi/signals/e42bec4f-48c2-47da-b1ac-84d97f97f0f5","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5194529008","title":"Marketing Events Lead, Brand","context":"San Francisco, CA | New York City, NY","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-11T00:15:44+00:00","first_seen_at":"2026-06-05T05:42:57.438244+00:00","date_source":"greenhouse.updated_at"}]}