{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Job: Research Engineer, Pretraining","description":"Anthropic job signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/aeccf0fd-7e67-4302-ad8e-e7eb83a70178","json_url":"https://onlylabs.fyi/signals/aeccf0fd-7e67-4302-ad8e-e7eb83a70178/signal.json","generated_at":"2026-06-11T03:55:00.973077+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/aeccf0fd-7e67-4302-ad8e-e7eb83a70178","signal_json":"https://onlylabs.fyi/signals/aeccf0fd-7e67-4302-ad8e-e7eb83a70178/signal.json","source":"https://job-boards.greenhouse.io/anthropic/jobs/5119713008","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 Research Engineer, Pretraining (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 for research engineer.. 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/5119713008","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":"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 for research engineer.","source":"signal"},{"label":"Radar lane","value":"Infrastructure","source":"radar"},{"label":"Matched term","value":"training","source":"radar"},{"label":"Watch term","value":"RL environments","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"}],"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/5119713008"],"related_signals":6,"has_source_url":true,"latest_page_fetched_at":"2026-06-11T03:55:00.973077+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":["training"],"score":15,"reason":"Anthropic has a job signal matching infrastructure."},"agent_handoff":{"signal_json":"https://onlylabs.fyi/signals/aeccf0fd-7e67-4302-ad8e-e7eb83a70178/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/aeccf0fd-7e67-4302-ad8e-e7eb83a70178/signal.json","required":true},{"label":"source","url":"https://job-boards.greenhouse.io/anthropic/jobs/5119713008","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 \"Research Engineer, Pretraining\" for frontier lab strategy and data-business implications."},"semantic_triples":[{"subject":"Anthropic","predicate":"opened","object":"role Research Engineer, Pretraining","text":"Anthropic opened role Research Engineer, Pretraining."},{"subject":"Research Engineer, Pretraining","predicate":"is classified as","object":"job signal","text":"Research Engineer, Pretraining is classified as job signal."},{"subject":"Research Engineer, Pretraining","predicate":"belongs to","object":"hiring desk","text":"Research Engineer, Pretraining belongs to hiring desk."},{"subject":"Research Engineer, Pretraining","predicate":"has context","object":"London, UK","text":"Research Engineer, Pretraining has context London, UK."},{"subject":"Research Engineer, Pretraining","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Research Engineer, Pretraining has evidence coverage 1 captured evidence page."},{"subject":"Research Engineer, Pretraining","predicate":"matches data-business lanes","object":"Infrastructure","text":"Research Engineer, Pretraining matches data-business lanes Infrastructure."},{"subject":"Research Engineer, Pretraining","predicate":"has captured page count","object":"1","text":"Research Engineer, Pretraining has captured page count 1."},{"subject":"Research Engineer, Pretraining","predicate":"has readable page count","object":"1","text":"Research Engineer, Pretraining has readable page count 1."},{"subject":"Research Engineer, Pretraining","predicate":"has related signal count","object":"6","text":"Research Engineer, Pretraining has related signal count 6."},{"subject":"Research Engineer, Pretraining","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, Pretraining 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, Pretraining","predicate":"has source host","object":"job-boards.greenhouse.io","text":"Research Engineer, Pretraining has source host job-boards.greenhouse.io."},{"subject":"Research Engineer, Pretraining","predicate":"has lab","object":"Anthropic","text":"Research Engineer, Pretraining has lab Anthropic."},{"subject":"Research Engineer, Pretraining","predicate":"has signal desk","object":"hiring","text":"Research Engineer, Pretraining has signal desk hiring."},{"subject":"Research Engineer, Pretraining","predicate":"has source host","object":"job-boards.greenhouse.io","text":"Research Engineer, Pretraining has source host job-boards.greenhouse.io."},{"subject":"Research Engineer, Pretraining","predicate":"has location","object":"London, UK","text":"Research Engineer, Pretraining has location London, UK."},{"subject":"Research Engineer, Pretraining","predicate":"has ats","object":"greenhouse","text":"Research Engineer, Pretraining has ats greenhouse."},{"subject":"Research Engineer, Pretraining","predicate":"has notability","object":"Routine job opening for research engineer.","text":"Research Engineer, Pretraining has notability Routine job opening for research engineer.."},{"subject":"Research Engineer, Pretraining","predicate":"has radar lane","object":"Infrastructure","text":"Research Engineer, Pretraining has radar lane Infrastructure."},{"subject":"Research Engineer, Pretraining","predicate":"has matched term","object":"training","text":"Research Engineer, Pretraining has matched term training."}]},"intelligence":{"signal_desk":"hiring","answer":"Anthropic opened Research Engineer, Pretraining (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 for research engineer.. 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 Research Engineer, Pretraining","text":"Anthropic opened role Research Engineer, Pretraining."},{"subject":"Research Engineer, Pretraining","predicate":"is classified as","object":"job signal","text":"Research Engineer, Pretraining is classified as job signal."},{"subject":"Research Engineer, Pretraining","predicate":"belongs to","object":"hiring desk","text":"Research Engineer, Pretraining belongs to hiring desk."},{"subject":"Research Engineer, Pretraining","predicate":"has context","object":"London, UK","text":"Research Engineer, Pretraining has context London, UK."},{"subject":"Research Engineer, Pretraining","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Research Engineer, Pretraining has evidence coverage 1 captured evidence page."},{"subject":"Research Engineer, Pretraining","predicate":"matches data-business lanes","object":"Infrastructure","text":"Research Engineer, Pretraining matches data-business lanes Infrastructure."}]},"signal":{"id":"aeccf0fd-7e67-4302-ad8e-e7eb83a70178","url":"https://onlylabs.fyi/signals/aeccf0fd-7e67-4302-ad8e-e7eb83a70178","json_url":"https://onlylabs.fyi/signals/aeccf0fd-7e67-4302-ad8e-e7eb83a70178/signal.json","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5119713008","title":"Research Engineer, Pretraining","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":"2026-04-01T14:49:08+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/5119713008"]},"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":{"lanes":[{"key":"infrastructure","label":"Infrastructure","url":"https://onlylabs.fyi/data-radar/infrastructure"}],"score":15,"matched_terms":["training"],"reason":"Anthropic has a job signal matching infrastructure."}},"primary_evidence_page":{"url":"https://job-boards.greenhouse.io/anthropic/jobs/5119713008","final_url":"https://job-boards.greenhouse.io/anthropic/jobs/5119713008","title":"Research Engineer, Pretraining","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T03:55:00.973077+00:00","bytes":75729,"raw_path":"2406a0b1477f2cc7ba4926e6a0703edfcb56eb16102a3d17b168610810669e4c.html","content_hash":"3139a298367d8d3122105a42880d097e93feae3db72d224850885cdf3a49c71e","excerpt_chars":1200,"truncated":true,"excerpt":"Job Application for Research Engineer, Pretraining at Anthropic Back to jobs Research Engineer, Pretraining 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. Anthropic is at the forefront of AI research, dedicated to developing safe, ethical, and powerful artificial intelligence. Our mission is to ensure that transformative AI systems are aligned with human interests. We are seeking a Research Engineer to join our Pretraining team, responsible for developing the next generation of large language models. In this role, you will work at the intersection of cutting-edge research and practical engineering, contributing to the development of safe, steerable, and trustworthy AI systems. Key Responsibilities: Conduct research and implement solutions in areas such as model architecture, algorithms, data processing, and optimizer development Independently lead small research projects while..."},"evidence_pages":[{"url":"https://job-boards.greenhouse.io/anthropic/jobs/5119713008","final_url":"https://job-boards.greenhouse.io/anthropic/jobs/5119713008","title":"Research Engineer, Pretraining","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T03:55:00.973077+00:00","bytes":75729,"raw_path":"2406a0b1477f2cc7ba4926e6a0703edfcb56eb16102a3d17b168610810669e4c.html","content_hash":"3139a298367d8d3122105a42880d097e93feae3db72d224850885cdf3a49c71e","excerpt_chars":1200,"truncated":true,"excerpt":"Job Application for Research Engineer, Pretraining at Anthropic Back to jobs Research Engineer, Pretraining 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. Anthropic is at the forefront of AI research, dedicated to developing safe, ethical, and powerful artificial intelligence. Our mission is to ensure that transformative AI systems are aligned with human interests. We are seeking a Research Engineer to join our Pretraining team, responsible for developing the next generation of large language models. In this role, you will work at the intersection of cutting-edge research and practical engineering, contributing to the development of safe, steerable, and trustworthy AI systems. Key Responsibilities: Conduct research and implement solutions in areas such as model architecture, algorithms, data processing, and optimizer development Independently lead small research projects while..."}],"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"}]}