{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Job: Research Engineer, Code RL (Reinforcement Learning)","description":"Anthropic job signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/fc7132ab-2ca8-4b86-8de4-5ecd7b4ac685","json_url":"https://onlylabs.fyi/signals/fc7132ab-2ca8-4b86-8de4-5ecd7b4ac685/signal.json","generated_at":"2026-06-13T17:28:21.868Z","evidence_latest_fetched_at":"2026-06-12T07:03:53.244561+00:00","signal_first_seen_at":"2026-06-12T07:00:22.445622+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/fc7132ab-2ca8-4b86-8de4-5ecd7b4ac685","signal_json":"https://onlylabs.fyi/signals/fc7132ab-2ca8-4b86-8de4-5ecd7b4ac685/signal.json","source":"https://job-boards.greenhouse.io/anthropic/jobs/5254364008","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":null},"answer_pack":{"answer":"Anthropic opened Research Engineer, Code RL (Reinforcement Learning) (San Francisco, CA | New York City, NY). 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 · Routine job opening at notable AI lab, no special traction.. onlylabs links this event to 1 captured evidence page and 6 related job signals.","signal_desk":"hiring","source_context":{"source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5254364008","source_host":"job-boards.greenhouse.io","occurred_at":"2026-06-11T21:49:19+00:00","first_seen_at":"2026-06-12T07:00:22.445622+00:00","date_source":"greenhouse.updated_at","context":"San Francisco, CA | New York City, NY"},"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","source":"signal"},{"label":"ATS","value":"greenhouse","source":"source"},{"label":"Notability","value":"Routine job opening at notable AI lab, no special traction.","source":"signal"},{"label":"Watch term","value":"RL environments","source":"evidence"},{"label":"Watch term","value":"Eval methodology","source":"evidence"},{"label":"Watch term","value":"Infrastructure","source":"evidence"},{"label":"Watch term","value":"Safety and alignment","source":"evidence"},{"label":"Watch term","value":"Agents and tool use","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/5254364008"],"related_signals":6,"has_source_url":true,"latest_page_fetched_at":"2026-06-12T07:03:53.244561+00:00"},"data_business":{"matches":false,"lanes":[],"matched_terms":[],"score":null,"reason":null},"agent_handoff":{"signal_json":"https://onlylabs.fyi/signals/fc7132ab-2ca8-4b86-8de4-5ecd7b4ac685/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":null,"opportunities_json":null},"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?","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/fc7132ab-2ca8-4b86-8de4-5ecd7b4ac685/signal.json","required":true},{"label":"source","url":"https://job-boards.greenhouse.io/anthropic/jobs/5254364008","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":null,"required":false}],"expected_output":["one-paragraph source-grounded interpretation","category-specific 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 \"Research Engineer, Code RL (Reinforcement Learning)\" for frontier lab strategy."},"semantic_triples":[{"subject":"Anthropic","predicate":"opened","object":"role Research Engineer, Code RL (Reinforcement Learning)","text":"Anthropic opened role Research Engineer, Code RL (Reinforcement Learning)."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"is classified as","object":"job signal","text":"Research Engineer, Code RL (Reinforcement Learning) is classified as job signal."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"belongs to","object":"hiring desk","text":"Research Engineer, Code RL (Reinforcement Learning) belongs to hiring desk."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has context","object":"San Francisco, CA | New York City, NY","text":"Research Engineer, Code RL (Reinforcement Learning) has context San Francisco, CA | New York City, NY."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Research Engineer, Code RL (Reinforcement Learning) has evidence coverage 1 captured evidence page."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has captured page count","object":"1","text":"Research Engineer, Code RL (Reinforcement Learning) has captured page count 1."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has readable page count","object":"1","text":"Research Engineer, Code RL (Reinforcement Learning) has readable page count 1."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has related signal count","object":"6","text":"Research Engineer, Code RL (Reinforcement Learning) has related signal count 6."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","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":"Research Engineer, Code RL (Reinforcement Learning) has analysis playbook objective Turn open roles into leading indicators for teams, locations, infrastructure needs, eval work, data demand, and commercialization buildout.."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has source host","object":"job-boards.greenhouse.io","text":"Research Engineer, Code RL (Reinforcement Learning) has source host job-boards.greenhouse.io."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has lab","object":"Anthropic","text":"Research Engineer, Code RL (Reinforcement Learning) has lab Anthropic."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has signal desk","object":"hiring","text":"Research Engineer, Code RL (Reinforcement Learning) has signal desk hiring."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has source host","object":"job-boards.greenhouse.io","text":"Research Engineer, Code RL (Reinforcement Learning) has source host job-boards.greenhouse.io."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has location","object":"San Francisco, CA | New York City, NY","text":"Research Engineer, Code RL (Reinforcement Learning) has location San Francisco, CA | New York City, NY."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has ats","object":"greenhouse","text":"Research Engineer, Code RL (Reinforcement Learning) has ats greenhouse."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has notability","object":"Routine job opening at notable AI lab, no special traction.","text":"Research Engineer, Code RL (Reinforcement Learning) has notability Routine job opening at notable AI lab, no special traction.."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has watch term","object":"RL environments","text":"Research Engineer, Code RL (Reinforcement Learning) has watch term RL environments."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has watch term","object":"Eval methodology","text":"Research Engineer, Code RL (Reinforcement Learning) has watch term Eval methodology."}]},"intelligence":{"signal_desk":"hiring","answer":"Anthropic opened Research Engineer, Code RL (Reinforcement Learning) (San Francisco, CA | New York City, NY). 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 · Routine job opening at notable AI lab, no special traction.. onlylabs links this event to 1 captured evidence page and 6 related job signals.","semantic_triples":[{"subject":"Anthropic","predicate":"opened","object":"role Research Engineer, Code RL (Reinforcement Learning)","text":"Anthropic opened role Research Engineer, Code RL (Reinforcement Learning)."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"is classified as","object":"job signal","text":"Research Engineer, Code RL (Reinforcement Learning) is classified as job signal."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"belongs to","object":"hiring desk","text":"Research Engineer, Code RL (Reinforcement Learning) belongs to hiring desk."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has context","object":"San Francisco, CA | New York City, NY","text":"Research Engineer, Code RL (Reinforcement Learning) has context San Francisco, CA | New York City, NY."},{"subject":"Research Engineer, Code RL (Reinforcement Learning)","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Research Engineer, Code RL (Reinforcement Learning) has evidence coverage 1 captured evidence page."}]},"signal":{"id":"fc7132ab-2ca8-4b86-8de4-5ecd7b4ac685","url":"https://onlylabs.fyi/signals/fc7132ab-2ca8-4b86-8de4-5ecd7b4ac685","json_url":"https://onlylabs.fyi/signals/fc7132ab-2ca8-4b86-8de4-5ecd7b4ac685/signal.json","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5254364008","title":"Research Engineer, Code RL (Reinforcement Learning)","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","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-11T21:49:19+00:00","first_seen_at":"2026-06-12T07:00:22.445622+00:00","date_source":"greenhouse.updated_at","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/5254364008"]},"facets":{"location":"San Francisco, CA | New York City, NY","ats":"greenhouse"},"traction":{"github_stars":null,"hn_points":null,"hn_comments":null,"hn_story_id":null,"hf_downloads":null,"hf_likes":null},"data_radar":null},"primary_evidence_page":{"is_primary":true,"source_match":true,"url":"https://job-boards.greenhouse.io/anthropic/jobs/5254364008","final_url":"https://job-boards.greenhouse.io/anthropic/jobs/5254364008","title":"Research Engineer, Code RL (Reinforcement Learning)","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-12T07:03:53.244561+00:00","bytes":99227,"raw_path":"b58769638a81ce1ca41827e1ae4615c3ef706fde8dcffb073c5592ba3c96c5d7.html","content_hash":"dfb0e199a8c1e0b050ee5eb1586bb42e8987411e69e712c7c10fe3f33518072b","excerpt_chars":1200,"truncated":true,"excerpt":"Job Application for Research Engineer, Code RL (Reinforcement Learning) at Anthropic Back to jobs New Research Engineer, Code RL (Reinforcement Learning) San Francisco, CA | New York City, NY 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 RL Teams Our Reinforcement Learning teams play a critical role in advancing our AI systems. We've contributed to all Claude models, with significant impacts on the autonomy and coding capabilities of our latest Claude models. Our work spans several key areas: Developing systems that enable models to use computers effectively Advancing code generation through reinforcement learning Pioneering fundamental RL research for large language models Building scalable RL infrastructure and training methodologies Enhancing model reasoning capabilities We collaborate closely with Anthropic's alignment and frontier red teams to ensure our systems are both capable..."},"evidence_pages":[],"related_signals":[{"id":"0543d363-25bc-4aee-aa57-3d1849e0afed","url":"https://onlylabs.fyi/signals/0543d363-25bc-4aee-aa57-3d1849e0afed","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5255912008","title":"Engineering Manager, Enterprise","context":"San Francisco, CA | New York City, NY","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-13T03:48:51+00:00","first_seen_at":"2026-06-13T07:00:24.555376+00:00","date_source":"greenhouse.updated_at"},{"id":"5fc8b494-51de-4bb5-9e9f-0b5d69148056","url":"https://onlylabs.fyi/signals/5fc8b494-51de-4bb5-9e9f-0b5d69148056","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5253835008","title":"Sr. Manager, Procurement Lease Administration ","context":"San Francisco, CA | New York City, NY","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-13T00:00:51+00:00","first_seen_at":"2026-06-13T07:00:24.555376+00:00","date_source":"greenhouse.updated_at"},{"id":"c2f6c059-832d-4808-8e45-236c269af799","url":"https://onlylabs.fyi/signals/c2f6c059-832d-4808-8e45-236c269af799","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5239794008","title":"People Programs, M&A Lead","context":"San Francisco, CA","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-12T23:01:51+00:00","first_seen_at":"2026-06-10T07:01:15.257046+00:00","date_source":"greenhouse.updated_at"},{"id":"da149492-95fc-4a1e-8d8c-77e07aac8e58","url":"https://onlylabs.fyi/signals/da149492-95fc-4a1e-8d8c-77e07aac8e58","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5257669008","title":"Web Producer, CMS Publishing","context":"San Francisco, CA | New York City, NY","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-12T21:21:17+00:00","first_seen_at":"2026-06-13T07:00:24.555376+00:00","date_source":"greenhouse.updated_at"},{"id":"c781628e-2e3e-46ba-bfa2-1edaa90c039d","url":"https://onlylabs.fyi/signals/c781628e-2e3e-46ba-bfa2-1edaa90c039d","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5229558008","title":"Manager, Startup Partnerships","context":"San Francisco, CA | New York City, NY","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-12T21:11:42+00:00","first_seen_at":"2026-06-13T07:00:24.555376+00:00","date_source":"greenhouse.updated_at"},{"id":"bb4f2654-c38a-4faa-9b6b-764de18f030d","url":"https://onlylabs.fyi/signals/bb4f2654-c38a-4faa-9b6b-764de18f030d","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5257650008","title":"Staff+ Software Engineer, Inference Runtime","context":"Remote-Friendly (Travel-Required) | San Francisco, CA | Seattle, WA | New York City, NY","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-06-12T20:17:38+00:00","first_seen_at":"2026-06-13T07:00:24.555376+00:00","date_source":"greenhouse.updated_at"}]}