San Francisco, California, United States · On-site
$175k–$300k/yr
About Patronus AI Patronus AI is a frontier lab developing simulation research and infrastructure to accelerate progress toward human-aligned AGI. We are on a mission to simulate all of the world’s intelligence. We are t…
Skills: Reinforcement learning, Agentic systems, AI evaluation, Python, Machine learning
San Francisco, California, United States · On-site
$150k–$300k/yr
About Patronus AI Patronus AI is a frontier lab developing simulation research and infrastructure to accelerate progress toward human-aligned AGI. We are on a mission to simulate all of the world’s intelligence. We are t…
Skills: React, TypeScript, Next.js, Python, FastAPI
San Francisco, California, United States · On-site
$125k–$200k/yr
About Patronus AI Patronus AI is a frontier lab developing simulation research and infrastructure to accelerate progress toward human-aligned AGI. We are on a mission to simulate all of the world’s intelligence. We are t…
Skills: React, TypeScript, Next.js, Python, SQLite
San Francisco, California, United States · On-site
$125k–$250k/yr
About Patronus AI Patronus AI is a frontier lab developing simulation research and infrastructure to accelerate progress toward human-aligned AGI. We are on a mission to simulate all of the world’s intelligence. We are t…
Skills: Operations management, Talent operations, Expert networks, Data analysis, KPI definition
San Francisco, California, United States · On-site
$140k–$294k/yr
Primary Care Physician, 2-3 Day Work Week, No Call, Holidays Off Join Our National Network as a Primary Care Physician Are you looking for a career that balances professional fulfillment with personal well-being? At Carb…
Skills: Primary care, Family medicine, Internal medicine, Patient-centered care, Women's health
San Francisco, California, United States · On-site
$85k–$130k/yr
The Fine Arts Museums of San Francisco has an exciting opportunity for an experienced Paper Conservator OR Associate Paper Conservator to support the preservation, conservation treatment, and technical study of the Museu…
Skills: Paper conservation, Art handling, Preventive conservation, Microscopy, X-ray fluorescence spectrometry
San Francisco, California, United States · Remote OK
Location: For Spring 2027, students located in proximity to one of our three office locations (Fresno, Sacramento, or San Francisco) may work with us in-person, remotely, or in a hybrid model. Students not located in pro…
Skills: Legal Research, Legal Writing, Oral Communication, Policy Analysis, Advocacy
Vir Biotechnology, Inc.San Francisco, California, United States · On-site
$58/hr–$82/hr
Vir Biotechnology, Inc. is a clinical-stage biopharmaceutical company focused on powering the immune system to transform lives by discovering and developing medicines for serious infectious diseases and cancer. Its clini…
Skills: Calendar management, Administrative support, Travel coordination, Expense reporting, Stakeholder management
San Francisco, California, United States · Hybrid
$385k–$460k/yr
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 co…
Skills: Cybersecurity, Product strategy, Vulnerability discovery, Remediation, Product management
San Francisco, California, United States · On-site
Company Description The San Francisco Adult Probation Department (SFAPD) values the individuality and diversity of justice involved adults, recognize the unique challenges they face, and invest in their success through s…
Skills: Case management, Criminal justice, Data analysis, Report writing, Program administration
San Francisco, California, United States · Remote OK
$200k–$250k/yr
Our vision is to build the next generation platform to enable easy and fast creation of audio and video content powered by cutting-edge AI. Building a revolutionary way to record, transcribe, edit, and mix spoken audio a…
Skills: Statistical Analysis, A/B Testing, SQL, Python, R
San Francisco, California, United States · Hybrid
$127k–$181k/yr
Welcome to Planet. We believe in using space to help life on Earth. Planet designs, builds, and operates the largest constellation of imaging satellites in history. This constellation delivers an unprecedented dataset of…
Skills: Contract Negotiation, Contract Drafting, Subcontract Management, FAR, DFAR
San Francisco, California, United States · Hybrid
$205k–$240k/yr
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 co…
Skills: Strategic partnerships, Business development, Technology licensing, Corporate development, Semiconductor industry
San Francisco, California, United States · Hybrid
$300k–$320k/yr
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 co…
Skills: Medicinal chemistry, Small molecule synthesis, SAR analysis, NMR, LC-MS
San Francisco, California, United States · Hybrid
$335k–$385k/yr
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 co…
Skills: Patent strategy, Invention harvesting, Patent prosecution, IP guidance, Trademark law
San Francisco, California, United States · Hybrid
$405k–$485k/yr
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 co…
Skills: Cybersecurity, Vulnerability research, Exploit development, Reverse engineering, Malware analysis
San Francisco, California, United States · Hybrid
$290k–$435k/yr
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 co…
Skills: Developer Relations, Technical Strategy, Developer Experience, AI/ML, API
San Francisco, California, United States · Hybrid
$365k–$435k/yr
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 co…
Skills: Technical Program Management, Reinforcement Learning, Machine Learning Engineering, Data Pipelines, Infrastructure Management
San Francisco, California, United States · Hybrid
$365k–$435k/yr
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 co…
Skills: Hardware systems, NPI program management, ODM management, CM management, Supply chain management
San Francisco, California, United States · Hybrid
$270k–$320k/yr
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 co…
Skills: Technical Writing, Information Architecture, Software Engineering, Python, TypeScript
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You will own and drive foundational research in agentic AI, focusing on training, evaluation, and simulation systems. This involves designing rigorous experiments and building production-level research systems to advance human-aligned general intelligence.
Candidates must hold an MS or PhD in a quantitative field and possess experience in reinforcement learning or agentic systems. You should demonstrate the ability to execute independent research and write high-quality, reproducible Python code.
Patronus AI is a frontier lab developing simulation research and infrastructure to accelerate progress toward human-aligned AGI. We are on a mission to simulate all of the world’s intelligence.
We are the team behind some of the earliest and most influential research in AI evaluation like FinanceBench, Lynx, SimpleSafetyTests, CopyrightCatcher, Humanity’s Last Exam, and more. We are formerly AI researchers and engineers from companies like Meta AI, Amazon AGI, and Google. Our customers include foundation model labs and Fortune 500 enterprises like Adobe. We are backed by top-tier investors like Lightspeed Venture Partners, Notable Capital, Stanford University, Noam Brown, Gokul Rajaram, and more.
As a Researcher at Patronus AI, you will own and drive foundational research that defines how agentic AI systems are trained, evaluated, and improved. You will work at the intersection of reinforcement learning, simulations, and scalable oversight, building systems that directly influence how frontier models are developed, stress-tested, and deployed.
This is a highly autonomous role. You will tackle open-ended research questions surrounding agent simulations and translate them into rigorous experiments, benchmarks, environments, and production systems. You will work across areas including reward design, tool simulations, agent cognition, behavior analysis, and scalable oversight, helping shape the industry standard for robust, high-quality environments.
Your work will inform how frontier labs design, train, evaluate, and improve the next generation of agents for complex, long-horizon tasks, advancing our path toward safe, human-aligned general intelligence.
"The number one qualification to succeed in this machine learning course is gumption” - John Lafferty, CS Professor at Yale
Above all, we look for an eagerness to learn, passion for research, creativity in problem solving and a proactive mindset. You are a great fit if you have a background in the following:
Patronus AI is an equal opportunity employer. We celebrate diversity in our workplace, and all qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or other legally protected characteristics.
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Simulating the World's Intelligence
Patronus AI is a frontier lab developing simulation research and infrastructure to accelerate progress toward human-aligned AGI. We are training the first world models to simulate digital workflows. Our mission is to simulate all of the world’s intelligence. We are the company behind the earliest and most influential research in AI evaluation like FinanceBench, Lynx, SimpleSafetyTests, and CopyrightCatcher. We are backed by top-tier investors like Notable Capital, Lightspeed Venture Partners, Stanford University, Datadog, Noam Brown, Gokul Rajaram, and more.
Offices: San Francisco, California, US
Based on 1406 listings with disclosed salaries, most science & research jobs in San Francisco, CA pay between $100k–$309k per year. Individual offers vary with seniority, company size, and specialization.
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