{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Job: Full-Stack Software Engineer, 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/be130c70-345f-4c98-a075-77e7f7412726","json_url":"https://onlylabs.fyi/signals/be130c70-345f-4c98-a075-77e7f7412726/signal.json","generated_at":"2026-06-11T03:54:52.979894+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/be130c70-345f-4c98-a075-77e7f7412726","signal_json":"https://onlylabs.fyi/signals/be130c70-345f-4c98-a075-77e7f7412726/signal.json","source":"https://job-boards.greenhouse.io/anthropic/jobs/5186067008","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 Full-Stack Software Engineer, 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 Anthropic. 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/5186067008","source_host":"job-boards.greenhouse.io","occurred_at":"2026-04-14T10:09:04+00:00","first_seen_at":"2026-06-05T05:42:57.438244+00:00","date_source":"source","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 Anthropic","source":"signal"},{"label":"Watch term","value":"RL environments","source":"evidence"},{"label":"Watch term","value":"Eval methodology","source":"evidence"},{"label":"Watch term","value":"Data pipeline","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/5186067008"],"related_signals":6,"has_source_url":true,"latest_page_fetched_at":"2026-06-11T03:54:52.979894+00:00"},"data_business":{"matches":false,"lanes":[],"matched_terms":[],"score":null,"reason":null},"agent_handoff":{"signal_json":"https://onlylabs.fyi/signals/be130c70-345f-4c98-a075-77e7f7412726/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/be130c70-345f-4c98-a075-77e7f7412726/signal.json","required":true},{"label":"source","url":"https://job-boards.greenhouse.io/anthropic/jobs/5186067008","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 \"Full-Stack Software Engineer, Reinforcement Learning\" for frontier lab strategy."},"semantic_triples":[{"subject":"Anthropic","predicate":"opened","object":"role Full-Stack Software Engineer, Reinforcement Learning","text":"Anthropic opened role Full-Stack Software Engineer, Reinforcement Learning."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"is classified as","object":"job signal","text":"Full-Stack Software Engineer, Reinforcement Learning is classified as job signal."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"belongs to","object":"hiring desk","text":"Full-Stack Software Engineer, Reinforcement Learning belongs to hiring desk."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has context","object":"San Francisco, CA | New York City, NY","text":"Full-Stack Software Engineer, Reinforcement Learning has context San Francisco, CA | New York City, NY."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Full-Stack Software Engineer, Reinforcement Learning has evidence coverage 1 captured evidence page."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has captured page count","object":"1","text":"Full-Stack Software Engineer, Reinforcement Learning has captured page count 1."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has readable page count","object":"1","text":"Full-Stack Software Engineer, Reinforcement Learning has readable page count 1."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has related signal count","object":"6","text":"Full-Stack Software Engineer, Reinforcement Learning has related signal count 6."},{"subject":"Full-Stack Software Engineer, 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":"Full-Stack Software Engineer, 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":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has source host","object":"job-boards.greenhouse.io","text":"Full-Stack Software Engineer, Reinforcement Learning has source host job-boards.greenhouse.io."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has lab","object":"Anthropic","text":"Full-Stack Software Engineer, Reinforcement Learning has lab Anthropic."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has signal desk","object":"hiring","text":"Full-Stack Software Engineer, Reinforcement Learning has signal desk hiring."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has source host","object":"job-boards.greenhouse.io","text":"Full-Stack Software Engineer, Reinforcement Learning has source host job-boards.greenhouse.io."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has location","object":"San Francisco, CA | New York City, NY","text":"Full-Stack Software Engineer, Reinforcement Learning has location San Francisco, CA | New York City, NY."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has ats","object":"greenhouse","text":"Full-Stack Software Engineer, Reinforcement Learning has ats greenhouse."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has notability","object":"Routine job opening at Anthropic","text":"Full-Stack Software Engineer, Reinforcement Learning has notability Routine job opening at Anthropic."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has watch term","object":"RL environments","text":"Full-Stack Software Engineer, Reinforcement Learning has watch term RL environments."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has watch term","object":"Eval methodology","text":"Full-Stack Software Engineer, Reinforcement Learning has watch term Eval methodology."}]},"intelligence":{"signal_desk":"hiring","answer":"Anthropic opened Full-Stack Software Engineer, 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 Anthropic. onlylabs links this event to 1 captured evidence page and 6 related job signals.","semantic_triples":[{"subject":"Anthropic","predicate":"opened","object":"role Full-Stack Software Engineer, Reinforcement Learning","text":"Anthropic opened role Full-Stack Software Engineer, Reinforcement Learning."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"is classified as","object":"job signal","text":"Full-Stack Software Engineer, Reinforcement Learning is classified as job signal."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"belongs to","object":"hiring desk","text":"Full-Stack Software Engineer, Reinforcement Learning belongs to hiring desk."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has context","object":"San Francisco, CA | New York City, NY","text":"Full-Stack Software Engineer, Reinforcement Learning has context San Francisco, CA | New York City, NY."},{"subject":"Full-Stack Software Engineer, Reinforcement Learning","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Full-Stack Software Engineer, Reinforcement Learning has evidence coverage 1 captured evidence page."}]},"signal":{"id":"be130c70-345f-4c98-a075-77e7f7412726","url":"https://onlylabs.fyi/signals/be130c70-345f-4c98-a075-77e7f7412726","json_url":"https://onlylabs.fyi/signals/be130c70-345f-4c98-a075-77e7f7412726/signal.json","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5186067008","title":"Full-Stack Software Engineer, 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":"2026-04-14T10:09:04+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/5186067008"]},"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":{"url":"https://job-boards.greenhouse.io/anthropic/jobs/5186067008","final_url":"https://job-boards.greenhouse.io/anthropic/jobs/5186067008","title":"Full-Stack Software Engineer, Reinforcement Learning","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T03:54:52.979894+00:00","bytes":101679,"raw_path":"a9430f26d80a79f33a11cef40ec5520ee31642354d2c011c52106af5794e956a.html","content_hash":"a2fe9646ac881dc17982d6891361bc81b53bfb6e64ab87eab6626626c5ca05ec","excerpt_chars":1200,"truncated":true,"excerpt":"Job Application for Full-Stack Software Engineer, Reinforcement Learning at Anthropic Back to jobs Full-Stack Software Engineer, Reinforcement Learning San Francisco, CA | New York City, NY 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 As a Full-Stack Software Engineer in RL, you'll build the platforms, tools, and interfaces that power environment creation, data collection, and training observability. The quality of Claude's next generation depends on the quality of the data we train it on — and the systems you build are what make that data possible. You'll own product surfaces end-to-end — from backend services and APIs to the web UIs that researchers, external vendors, and thousands of data labelers use every day. You don't need a background in ML research. What matters is that you can take an ambiguous, high-stakes problem and ship a polished, reliable product against..."},"evidence_pages":[{"url":"https://job-boards.greenhouse.io/anthropic/jobs/5186067008","final_url":"https://job-boards.greenhouse.io/anthropic/jobs/5186067008","title":"Full-Stack Software Engineer, Reinforcement Learning","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T03:54:52.979894+00:00","bytes":101679,"raw_path":"a9430f26d80a79f33a11cef40ec5520ee31642354d2c011c52106af5794e956a.html","content_hash":"a2fe9646ac881dc17982d6891361bc81b53bfb6e64ab87eab6626626c5ca05ec","excerpt_chars":1200,"truncated":true,"excerpt":"Job Application for Full-Stack Software Engineer, Reinforcement Learning at Anthropic Back to jobs Full-Stack Software Engineer, Reinforcement Learning San Francisco, CA | New York City, NY 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 As a Full-Stack Software Engineer in RL, you'll build the platforms, tools, and interfaces that power environment creation, data collection, and training observability. The quality of Claude's next generation depends on the quality of the data we train it on — and the systems you build are what make that data possible. You'll own product surfaces end-to-end — from backend services and APIs to the web UIs that researchers, external vendors, and thousands of data labelers use every day. You don't need a background in ML research. What matters is that you can take an ambiguous, high-stakes problem and ship a polished, reliable product against..."}],"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"}]}