{"schema_version":"onlylabs.public_signal.v1","title":"Anthropic Job: Senior Staff Software Engineer, API","description":"Anthropic job signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/efd007df-b271-4048-b87a-51beda2aa2a9","json_url":"https://onlylabs.fyi/signals/efd007df-b271-4048-b87a-51beda2aa2a9/signal.json","generated_at":"2026-06-09T02:21:15.220128+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/efd007df-b271-4048-b87a-51beda2aa2a9","signal_json":"https://onlylabs.fyi/signals/efd007df-b271-4048-b87a-51beda2aa2a9/signal.json","source":"https://job-boards.greenhouse.io/anthropic/jobs/5134895008","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 Senior Staff Software Engineer, API (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 posting at notable company. 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/5134895008","source_host":"job-boards.greenhouse.io","occurred_at":"2026-06-04T19:41:58+00:00","first_seen_at":"2026-06-05T05:42:57.438244+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 posting at notable company","source":"signal"},{"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/5134895008"],"related_signals":6,"has_source_url":true,"latest_page_fetched_at":"2026-06-09T02:21:15.220128+00:00"},"data_business":{"matches":false,"lanes":[],"matched_terms":[],"score":null,"reason":null},"agent_handoff":{"signal_json":"https://onlylabs.fyi/signals/efd007df-b271-4048-b87a-51beda2aa2a9/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/efd007df-b271-4048-b87a-51beda2aa2a9/signal.json","required":true},{"label":"source","url":"https://job-boards.greenhouse.io/anthropic/jobs/5134895008","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 \"Senior Staff Software Engineer, API\" for frontier lab strategy."},"semantic_triples":[{"subject":"Anthropic","predicate":"opened","object":"role Senior Staff Software Engineer, API","text":"Anthropic opened role Senior Staff Software Engineer, API."},{"subject":"Senior Staff Software Engineer, API","predicate":"is classified as","object":"job signal","text":"Senior Staff Software Engineer, API is classified as job signal."},{"subject":"Senior Staff Software Engineer, API","predicate":"belongs to","object":"hiring desk","text":"Senior Staff Software Engineer, API belongs to hiring desk."},{"subject":"Senior Staff Software Engineer, API","predicate":"has context","object":"San Francisco, CA | New York City, NY","text":"Senior Staff Software Engineer, API has context San Francisco, CA | New York City, NY."},{"subject":"Senior Staff Software Engineer, API","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Senior Staff Software Engineer, API has evidence coverage 1 captured evidence page."},{"subject":"Senior Staff Software Engineer, API","predicate":"has captured page count","object":"1","text":"Senior Staff Software Engineer, API has captured page count 1."},{"subject":"Senior Staff Software Engineer, API","predicate":"has readable page count","object":"1","text":"Senior Staff Software Engineer, API has readable page count 1."},{"subject":"Senior Staff Software Engineer, API","predicate":"has related signal count","object":"6","text":"Senior Staff Software Engineer, API has related signal count 6."},{"subject":"Senior Staff Software Engineer, API","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":"Senior Staff Software Engineer, API has analysis playbook objective Turn open roles into leading indicators for teams, locations, infrastructure needs, eval work, data demand, and commercialization buildout.."},{"subject":"Senior Staff Software Engineer, API","predicate":"has source host","object":"job-boards.greenhouse.io","text":"Senior Staff Software Engineer, API has source host job-boards.greenhouse.io."},{"subject":"Senior Staff Software Engineer, API","predicate":"has lab","object":"Anthropic","text":"Senior Staff Software Engineer, API has lab Anthropic."},{"subject":"Senior Staff Software Engineer, API","predicate":"has signal desk","object":"hiring","text":"Senior Staff Software Engineer, API has signal desk hiring."},{"subject":"Senior Staff Software Engineer, API","predicate":"has source host","object":"job-boards.greenhouse.io","text":"Senior Staff Software Engineer, API has source host job-boards.greenhouse.io."},{"subject":"Senior Staff Software Engineer, API","predicate":"has location","object":"San Francisco, CA | New York City, NY","text":"Senior Staff Software Engineer, API has location San Francisco, CA | New York City, NY."},{"subject":"Senior Staff Software Engineer, API","predicate":"has ats","object":"greenhouse","text":"Senior Staff Software Engineer, API has ats greenhouse."},{"subject":"Senior Staff Software Engineer, API","predicate":"has notability","object":"Routine job posting at notable company","text":"Senior Staff Software Engineer, API has notability Routine job posting at notable company."},{"subject":"Senior Staff Software Engineer, API","predicate":"has watch term","object":"Data pipeline","text":"Senior Staff Software Engineer, API has watch term Data pipeline."},{"subject":"Senior Staff Software Engineer, API","predicate":"has watch term","object":"Infrastructure","text":"Senior Staff Software Engineer, API has watch term Infrastructure."}]},"intelligence":{"signal_desk":"hiring","answer":"Anthropic opened Senior Staff Software Engineer, API (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 posting at notable company. onlylabs links this event to 1 captured evidence page and 6 related job signals.","semantic_triples":[{"subject":"Anthropic","predicate":"opened","object":"role Senior Staff Software Engineer, API","text":"Anthropic opened role Senior Staff Software Engineer, API."},{"subject":"Senior Staff Software Engineer, API","predicate":"is classified as","object":"job signal","text":"Senior Staff Software Engineer, API is classified as job signal."},{"subject":"Senior Staff Software Engineer, API","predicate":"belongs to","object":"hiring desk","text":"Senior Staff Software Engineer, API belongs to hiring desk."},{"subject":"Senior Staff Software Engineer, API","predicate":"has context","object":"San Francisco, CA | New York City, NY","text":"Senior Staff Software Engineer, API has context San Francisco, CA | New York City, NY."},{"subject":"Senior Staff Software Engineer, API","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Senior Staff Software Engineer, API has evidence coverage 1 captured evidence page."}]},"signal":{"id":"efd007df-b271-4048-b87a-51beda2aa2a9","url":"https://onlylabs.fyi/signals/efd007df-b271-4048-b87a-51beda2aa2a9","json_url":"https://onlylabs.fyi/signals/efd007df-b271-4048-b87a-51beda2aa2a9/signal.json","source_url":"https://job-boards.greenhouse.io/anthropic/jobs/5134895008","title":"Senior Staff Software Engineer, API","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":"2026-06-04T19:41:58+00:00","first_seen_at":"2026-06-05T05:42:57.438244+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/5134895008"]},"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/5134895008","final_url":"https://job-boards.greenhouse.io/anthropic/jobs/5134895008","title":"Senior Staff Software Engineer, API","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-09T02:21:15.220128+00:00","bytes":96728,"raw_path":"f50f5adcef09ffe0695d493ab875bc3df5f50488534b775327edb8e0bfcdd685.html","content_hash":"a30e73f5530614c1371e606cfc9ac1405129493d43eb115336fd34b17483042c","excerpt_chars":1200,"truncated":true,"excerpt":"Job Application for Senior Staff Software Engineer, API at Anthropic Back to jobs Senior Staff Software Engineer, API 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 Anthropic is seeking an exceptional Senior Staff Software Engineer to join the Claude Developer Platform team and serve as the senior-most individual contributor across API Engineering. Since launch, the Claude API has seen rapid growth and adoption by companies of all sizes to build AI applications with our industry-leading models. The API serves as the primary channel for safely and broadly distributing AI's benefits across all sectors of the economy. This role sets the technical direction for the systems that make Claude accessible to developers, enterprises, and partners at scale. You will operate at the intersection of technical strategy and execution, partnering closely..."},"evidence_pages":[{"url":"https://job-boards.greenhouse.io/anthropic/jobs/5134895008","final_url":"https://job-boards.greenhouse.io/anthropic/jobs/5134895008","title":"Senior Staff Software Engineer, API","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-09T02:21:15.220128+00:00","bytes":96728,"raw_path":"f50f5adcef09ffe0695d493ab875bc3df5f50488534b775327edb8e0bfcdd685.html","content_hash":"a30e73f5530614c1371e606cfc9ac1405129493d43eb115336fd34b17483042c","excerpt_chars":1200,"truncated":true,"excerpt":"Job Application for Senior Staff Software Engineer, API at Anthropic Back to jobs Senior Staff Software Engineer, API 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 Anthropic is seeking an exceptional Senior Staff Software Engineer to join the Claude Developer Platform team and serve as the senior-most individual contributor across API Engineering. Since launch, the Claude API has seen rapid growth and adoption by companies of all sizes to build AI applications with our industry-leading models. The API serves as the primary channel for safely and broadly distributing AI's benefits across all sectors of the economy. This role sets the technical direction for the systems that make Claude accessible to developers, enterprises, and partners at scale. You will operate at the intersection of technical strategy and execution, partnering closely..."}],"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"}]}