{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Job: Research Engineer, Machine Learning (RL Velocity)","description":"Anthropic job signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/c79fb9e5-2d56-4f50-a256-30ba51e0ab5f","json_url":"https://onlylabs.fyi/signals/c79fb9e5-2d56-4f50-a256-30ba51e0ab5f/signal.json","generated_at":"2026-06-11T03:54:51.847314+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/c79fb9e5-2d56-4f50-a256-30ba51e0ab5f","signal_json":"https://onlylabs.fyi/signals/c79fb9e5-2d56-4f50-a256-30ba51e0ab5f/signal.json","source":"https://job-boards.greenhouse.io/anthropic/jobs/5198074008","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, Machine Learning (RL Velocity) (London, UK). This hiring signal is demand evidence for teams, locations, and technical bets being staffed. High-signal details: location London, UK · Routine job opening at notable lab. 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/5198074008","source_host":"job-boards.greenhouse.io","occurred_at":"2026-04-23T14:43:13+00:00","first_seen_at":"2026-06-05T05:42:57.438244+00:00","date_source":"source","context":"London, UK"},"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":"London, UK","source":"signal"},{"label":"ATS","value":"greenhouse","source":"source"},{"label":"Notability","value":"Routine job opening at notable lab","source":"signal"},{"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/5198074008"],"related_signals":6,"has_source_url":true,"latest_page_fetched_at":"2026-06-11T03:54:51.847314+00:00"},"data_business":{"matches":false,"lanes":[],"matched_terms":[],"score":null,"reason":null},"agent_handoff":{"signal_json":"https://onlylabs.fyi/signals/c79fb9e5-2d56-4f50-a256-30ba51e0ab5f/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/c79fb9e5-2d56-4f50-a256-30ba51e0ab5f/signal.json","required":true},{"label":"source","url":"https://job-boards.greenhouse.io/anthropic/jobs/5198074008","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, Machine Learning (RL Velocity)\" for frontier lab strategy."},"semantic_triples":[{"subject":"Anthropic","predicate":"opened","object":"role Research Engineer, Machine Learning (RL Velocity)","text":"Anthropic opened role Research Engineer, Machine Learning (RL Velocity)."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"is classified as","object":"job signal","text":"Research Engineer, Machine Learning (RL Velocity) is classified as job signal."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"belongs to","object":"hiring desk","text":"Research Engineer, Machine Learning (RL Velocity) belongs to hiring desk."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has context","object":"London, UK","text":"Research Engineer, Machine Learning (RL Velocity) has context London, UK."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Research Engineer, Machine Learning (RL Velocity) has evidence coverage 1 captured evidence page."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has captured page count","object":"1","text":"Research Engineer, Machine Learning (RL Velocity) has captured page count 1."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has readable page count","object":"1","text":"Research Engineer, Machine Learning (RL Velocity) has readable page count 1."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has related signal count","object":"6","text":"Research Engineer, Machine Learning (RL Velocity) has related signal count 6."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","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, Machine Learning (RL Velocity) 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, Machine Learning (RL Velocity)","predicate":"has source host","object":"job-boards.greenhouse.io","text":"Research Engineer, Machine Learning (RL Velocity) has source host job-boards.greenhouse.io."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has lab","object":"Anthropic","text":"Research Engineer, Machine Learning (RL Velocity) has lab Anthropic."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has signal desk","object":"hiring","text":"Research Engineer, Machine Learning (RL Velocity) has signal desk hiring."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has source host","object":"job-boards.greenhouse.io","text":"Research Engineer, Machine Learning (RL Velocity) has source host job-boards.greenhouse.io."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has location","object":"London, UK","text":"Research Engineer, Machine Learning (RL Velocity) has location London, UK."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has ats","object":"greenhouse","text":"Research Engineer, Machine Learning (RL Velocity) has ats greenhouse."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has notability","object":"Routine job opening at notable lab","text":"Research Engineer, Machine Learning (RL Velocity) has notability Routine job opening at notable lab."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has watch term","object":"Infrastructure","text":"Research Engineer, Machine Learning (RL Velocity) has watch term Infrastructure."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has watch term","object":"Safety and alignment","text":"Research Engineer, Machine Learning (RL Velocity) has watch term Safety and alignment."}]},"intelligence":{"signal_desk":"hiring","answer":"Anthropic opened Research Engineer, Machine Learning (RL Velocity) (London, UK). This hiring signal is demand evidence for teams, locations, and technical bets being staffed. High-signal details: location London, UK · Routine job opening at notable lab. onlylabs links this event to 1 captured evidence page and 6 related job signals.","semantic_triples":[{"subject":"Anthropic","predicate":"opened","object":"role Research Engineer, Machine Learning (RL Velocity)","text":"Anthropic opened role Research Engineer, Machine Learning (RL Velocity)."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"is classified as","object":"job signal","text":"Research Engineer, Machine Learning (RL Velocity) is classified as job signal."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"belongs to","object":"hiring desk","text":"Research Engineer, Machine Learning (RL Velocity) belongs to hiring desk."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has context","object":"London, UK","text":"Research Engineer, Machine Learning (RL Velocity) has context London, UK."},{"subject":"Research Engineer, Machine Learning (RL Velocity)","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Research Engineer, Machine Learning (RL Velocity) has evidence coverage 1 captured evidence page."}]},"signal":{"id":"c79fb9e5-2d56-4f50-a256-30ba51e0ab5f","url":"https://onlylabs.fyi/signals/c79fb9e5-2d56-4f50-a256-30ba51e0ab5f","json_url":"https://onlylabs.fyi/signals/c79fb9e5-2d56-4f50-a256-30ba51e0ab5f/signal.json","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5198074008","title":"Research Engineer, Machine Learning (RL Velocity)","summary":"Anthropic opened a hiring signal. onlylabs watches roles as demand indicators for teams, locations, and technical bets.","context":"London, UK","kind":{"key":"job_opened","label":"Job"},"org":{"slug":"anthropic","name":"Anthropic","category":"frontier-lab"},"occurred_at":"2026-04-23T14:43:13+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/5198074008"]},"facets":{"location":"London, UK","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/5198074008","final_url":"https://job-boards.greenhouse.io/anthropic/jobs/5198074008","title":"Research Engineer, Machine Learning (RL Velocity)","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T03:54:51.847314+00:00","bytes":70016,"raw_path":"8b6ea78f89d506dbe5b0af8e6754d4bece2ba6fcefcf25bb978ca79c82b86235.html","content_hash":"57a2798ce60616f553d1dbf930f328dcc5cea1f81146e287b1e77102a073e9e7","excerpt_chars":1200,"truncated":true,"excerpt":"Job Application for Research Engineer, Machine Learning (RL Velocity) at Anthropic Back to jobs Research Engineer, Machine Learning (RL Velocity) London, UK 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 The RL Velocity team owns the efficiency and reliability of our RL Science stack - the infrastructure, tooling, and systems that let researchers iterate quickly on training runs. As a Research Engineer on the team, you'll build and improve the core platform that underpins how we do RL at Anthropic, removing bottlenecks that slow down research and making it easier for the broader org to ship better models faster. This is high-leverage work: small improvements to velocity compound across every researcher and every run. Responsibilities Build and improve the RL training infrastructure that researchers depend on day-to-day Identify and remove bottlenecks across the RL stack:..."},"evidence_pages":[{"url":"https://job-boards.greenhouse.io/anthropic/jobs/5198074008","final_url":"https://job-boards.greenhouse.io/anthropic/jobs/5198074008","title":"Research Engineer, Machine Learning (RL Velocity)","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T03:54:51.847314+00:00","bytes":70016,"raw_path":"8b6ea78f89d506dbe5b0af8e6754d4bece2ba6fcefcf25bb978ca79c82b86235.html","content_hash":"57a2798ce60616f553d1dbf930f328dcc5cea1f81146e287b1e77102a073e9e7","excerpt_chars":1200,"truncated":true,"excerpt":"Job Application for Research Engineer, Machine Learning (RL Velocity) at Anthropic Back to jobs Research Engineer, Machine Learning (RL Velocity) London, UK 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 The RL Velocity team owns the efficiency and reliability of our RL Science stack - the infrastructure, tooling, and systems that let researchers iterate quickly on training runs. As a Research Engineer on the team, you'll build and improve the core platform that underpins how we do RL at Anthropic, removing bottlenecks that slow down research and making it easier for the broader org to ship better models faster. This is high-leverage work: small improvements to velocity compound across every researcher and every run. Responsibilities Build and improve the RL training infrastructure that researchers depend on day-to-day Identify and remove bottlenecks across the RL stack:..."}],"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"}]}