Anthropic — open roles

New York City, NY; San Francisco, CA | New York City, NY; Washington, DCResearchMid-level

Mid-level data scientist role supporting policy work by turning internal data into evidence for policymakers and measuring AI impact.

pythonsqlcausal inferencequasi-experimental designs

Research Scientist, Life Sciences

Anthropic

San Francisco, CAResearch

Sierra

140

Mid-level

Anthropic seeks a mid-level Research Scientist to advance AI tools for computational biology and life sciences workflows.

pythonmachine learningcomputational biologybioinformatics

Software Engineer, Safeguards

Anthropic

San Francisco, CA | New York City, NYResearchMid-level

Software Engineer role focused on developing AI safety systems to detect misuse and enforce policies at Anthropic.

pythontypescriptfull stack developmentabuse detection

Product Engineer, Computer Use

Anthropic

San Francisco, CA | Seattle, WAResearchMid-level

Mid-level Product Engineer role building and iterating computer-use and browser-control product surfaces for Claude at Anthropic.

full-stack engineeringproduction web frontendbackend developmentllm apis

Research Engineer, Safeguards Labs

Anthropic

San Francisco, CA | New York City, NYResearchMid-level

Mid-level research engineer role developing AI safety methods to detect misuse and strengthen safeguards for Claude at Anthropic.

pythonlarge datasetsmachine learningclassifiers

Research Engineer, Cybersecurity RL (Reinforcement Learning)

Anthropic

5d ago

San Francisco, CA | New York City, NYResearchMid-level

Mid-level research engineer role advancing AI models in defensive cybersecurity via reinforcement learning at Anthropic.

cybersecurity researchmachine learningsoftware engineeringreinforcement learning

People Research Scientist, People

Anthropic

Today

New York City, NY | Seattle, WA; San Francisco, CA | New York City, NYResearchMid-level

Mid-level researcher applying scientific methods to study employee experience, manager effectiveness, and organizational health.

sqlpythonrexperimental design

Regional Research Economist, Economic Research

Anthropic

econometricsmachine learningcausal inferencestructural estimation

Mid-level economist role analyzing AI's regional economic effects via collaborations and the Anthropic Economic Index.

People Research Scientist, Recruiting

Anthropic

Today

New York City, NY | Seattle, WA; San Francisco, CA | New York City, NYResearchMid-level

Mid-level research scientist role applying scientific methods to improve recruiting funnels and assessments at Anthropic.

sqlpythonrpsychometrics

Research Engineer, Code RL (Reinforcement Learning)

Anthropic

4d ago

San Francisco, CA | New York City, NYResearchMid-level

Mid-level research engineer position advancing AI coding capabilities via reinforcement learning at Anthropic's RL team.

pythonreinforcement learningpytorchdistributed training

Recruiter, AI Research

Anthropic

6d ago

San Francisco, CA | Seattle, WAResearchMid-level

Anthropic seeks a mid-level recruiter to source and hire AI and machine learning research talent across its San Francisco and Seattle teams.

full life cycle recruitingmachine learningai researchsourcing

Regional Research Economist, Economic Research

Anthropic

SingaporeResearchMid-level

Mid-level economist role analyzing AI's regional economic effects and extending the Anthropic Economic Index across Singapore.

phd in economicsempirical researchcausal inferencemachine learning

Research Engineer, Performance RL (Reinforcement Learning)

Anthropic

5d ago

London, UK; San Francisco, CA | New York City, NYResearchMid-level

Mid-level research engineer role advancing RL methods to improve AI models writing correct fast code for accelerators.

cudarocmtritonpallas

Software Engineer, RL Data

Anthropic

6d ago

Anthropic seeks a mid-to-senior engineer to build foundational RL data systems and infrastructure for training Claude.

pythontypescriptdockerkubernetes

Research Engineer / Research Scientist, Tokens

Anthropic

New York City, NY; New York City, NY | Seattle, WA; San Francisco, CAResearchMid-level

Anthropic seeks a mid-level research engineer to build large-scale ML systems for safe, steerable AI across hybrid offices.

pytorchkubernetesgpustransformers

Data Scientist, Platform Product

Anthropic

New York City, NY | Seattle, WA; San Francisco, CAResearchMid-level

Mid-level data scientist embedded with product teams to analyze Anthropic's developer platform usage and drive roadmap decisions via experiments.

pythonsqldata visualizationexperimental design

Data Scientist, Safeguards

Anthropic

New York City, NY; San Francisco, CA | New York City, NY; Seattle, WAResearchMid-level

Mid-level data scientist role building metrics, experiments, and insights to advance AI safety at Anthropic.

pythonsqldata visualizationexperimentation

Research Engineer, Pretraining Scaling

Anthropic

jaxpytorchtpularge-scale distributed system

Mid-level research engineer role focused on scaling and optimizing large model pretraining at Anthropic in San Francisco.

Research Operations, External Artifacts

Anthropic

Remote · Remote-Friendly, United StatesResearchMid-level

Mid-level research operations specialist drives system card production, coordinates contributors, and edits safety documentation for AI launches.

project managementtechnical editingresearch coordinationdocument production

Research Engineer/Research Scientist, Pre-training

Anthropic

Remote · Remote-Friendly (Travel-Required) | San Francisco, CA | Seattle, WA | New York City, NYResearchMid-level

Mid-level research engineer or scientist role focused on pre-training large language models at Anthropic's AI team.

pythonpytorchmachine learningtransformers

Research Engineer, Universes

Anthropic

Remote · Remote-Friendly (Travel-Required) | San Francisco, CA | Seattle, WA | New York City, NYResearchMid-level

Mid-level research engineer role focused on developing advanced agentic training environments and evaluations for safe AI systems at Anthropic.

reinforcement learningsoftware engineeringlarge language model trainingrl environments

Research Engineer / Scientist, Frontier Red Team (Cyber)

Anthropic

cybersecurityai agentsvulnerability discoverypentesting

Mid-level researcher building AI tools and experiments to defend against autonomous cyber threats at Anthropic's Frontier Red Team in San Francisco.

Research Engineer, Production Model Post-Training

Anthropic

San Francisco, CA | New York City, NY | Seattle, WAResearchMid-level

Research Engineer role implementing and scaling post-training for production models like Claude using alignment techniques.

pythondeep learning frameworksdistributed computinglarge language models

Senior+ Software Engineer, Research Tools

Anthropic

San Francisco, CA | New York City, NYResearchSenior

Senior software engineer role building full-stack tools and infrastructure to support AI researchers at Anthropic.

reacttypescriptpythonfull-stack development

Staff Research Engineer, Discovery Team

Anthropic

San Francisco, CAResearchStaff

Staff research engineer role advancing AI for scientific discovery via full-stack model development and long-horizon capabilities.

language model trainingevaluation pipelinesinference pipelinesperformance optimization

Technical Program Manager, Research

Anthropic

San Francisco, CA | New York City, NYResearchLead / Manager

Lead technical programs across AI research domains to streamline execution, resource allocation, and cross-team coordination at Anthropic.

ml researchlarge-scale distributed systemtechnical program managementincident response

Anthropic Fellows Program, AI Security

Anthropic

Remote · London, UK; Ontario, CAN; Remote-Friendly, United States; San Francisco, CAResearchMid-level

Anthropic offers a 4-month AI Security Fellows role for technical talent to conduct empirical research with mentorship and produce public outputs.

researchengineeringempirical experimentationai security

Anthropic Fellows Program, ML Systems & Performance

Anthropic

Remote · London, UK; Ontario, CAN; Remote-Friendly, United States; San Francisco, CAResearchMid-level

The Anthropic Fellows Program offers mid-level researchers a four-month funded opportunity to pursue empirical ML systems projects with mentorship and compute resources.

empirical researchmachine learning systemsperformance analysisopen-source models

Anthropic Fellows Program, Reinforcement Learning

Anthropic

Remote · London, UK; Ontario, CAN; Remote-Friendly, United States; San Francisco, CAResearchMid-level

Anthropic offers a four-month remote-friendly fellowship for mid-level researchers to pursue empirical AI projects with mentorship and funding.

empirical researchai researchtechnical assessmentsresearch discussion

Anthropic Fellows Program, The Anthropic Institute (Economics & Policy)

Anthropic

Remote · London, UK; Ontario, CAN; Remote-Friendly, United States; San Francisco, CAResearchMid-level

Anthropic offers mid-level researchers four months of funded empirical AI work with mentorship and public output goals.

empirical researchpaper writingopen-source modelspublic apis

Contracts Manager, Research & Operations

Anthropic

San Francisco, CA | New York City, NYResearchLead / Manager

Lead contracts manager supporting commercial transactions, vendor agreements, and scalable processes for Anthropic's AI research and operations.

contract negotiationcommercial transactionsvendor managementprocess improvement

Data Scientist, Developer Productivity

Anthropic

San Francisco, CA | New York City, NYResearchMid-level

Mid-level data scientist role measuring and improving developer productivity through experiments and analysis at Anthropic.

pythonsqldata visualizationexperimental design

Design Engineer, AI Capability Development (Education Labs)

Anthropic

San Francisco, CA | New York City, NYResearchMid-level

Mid-level design engineer role building AI tools that enhance human skills via innovative web interfaces at Anthropic.

typescriptreactcsspython

Engineering Manager, GPU (ML Accelerator)

Anthropic

San Francisco, CA | New York City, NY | Seattle, WAResearchLead / Manager

Lead engineering teams optimizing large-scale GPU systems for ML training and inference at Anthropic.

machine learningdistributed systemsgpu programmingperformance optimization

Engineering Manager, Inference

Anthropic

San Francisco, CA | New York City, NY | Seattle, WAResearchLead / Manager

Lead engineering teams optimizing inference and training systems for scalable AI at Anthropic.

engineering managementmachine learningdistributed systemsperformance optimization

[Expression of Interest] Research Manager, Interpretability

Anthropic

San Francisco, CAResearchLead / Manager

Expression of interest for a lead research manager role supporting the interpretability team at Anthropic in San Francisco.

mechanistic interpretabilityneural network reverse engineedictionary learningtransformer circuits

[Expression of Interest] Research Scientist / Engineer, Honesty

Anthropic

New York City, NY; San Francisco, CAResearchMid-level

Anthropic seeks a mid-level research scientist or engineer to advance honesty techniques that reduce hallucinations in language models.

pythonlanguage model finetuningclassifier trainingexperimental design

Machine Learning Systems Engineer, Research Tools

Anthropic

San Francisco, CA | New York City, NY | Seattle, WAResearchMid-level

Mid-level engineer to develop and optimize tokenization systems bridging pretraining and finetuning at Anthropic's AI research team.

pythonmachine learning systemsdata pipelinesml infrastructure

ML/Research Engineer, Safeguards

Anthropic

San Francisco, CA | New York City, NYResearchMid-level

Mid-level ML engineer role focused on building safeguards against AI misuse at Anthropic in San Francisco or New York.

pythonmachine learningclassifiersanomaly detection

Performance Engineer

Anthropic

San Francisco, CA | New York City, NY | Seattle, WAResearchMid-level

Performance Engineer optimizing throughput and robustness of large-scale distributed ML systems at Anthropic.

distributed systemsgpu programmingmachine learningtransformers

Research Economist, Economic Research

Anthropic

econometricscausal inferencemachine learningpython

Mid-level economist role measuring AI's effects on labor, productivity, and growth via novel data and econometric methods.

Research Engineer, Discovery

Anthropic

distributed systemsperformance optimizationdockerkubernetes

Research Engineer role developing large-scale infrastructure to support AI scientist training, evaluation, and deployment.

Research Engineer, Economic Research Data Platform

Anthropic

pythonawsgcpdata pipelines

Mid-level research engineer building data infrastructure to analyze AI's economic impact at Anthropic.

Research Engineer, Interpretability

Anthropic

Mid-level research engineer role building infrastructure to support AI interpretability research at Anthropic in San Francisco.

pythonrustgojava

Research Engineer, Machine Learning (Reinforcement Learning)

Anthropic

San Francisco, CA | New York City, NYResearchMid-level

Mid-level research engineer role advancing reinforcement learning systems and infrastructure for large language models at Anthropic.

pythontriopytorchtensorflow

Research Engineer, Machine Learning (RL Velocity)

Anthropic

software engineeringml infrastructuredistributed systemsresearch tooling

Mid-level research engineer role focused on enhancing RL infrastructure and velocity for AI training at Anthropic in London.

Research Engineer, Pretraining Scaling - London

Anthropic

jaxpytorchtpularge language models

Mid-level research engineer role focused on scaling and optimizing large model pretraining at Anthropic's London office.

Research Engineer, Production Model Post-Training

Anthropic

Zürich, CHResearchMid-level

Research Engineer role implementing post-training techniques like RLHF to deliver production Claude models at Anthropic.

pythondeep learning frameworksdistributed computingllm training

Research Engineer / Research Scientist, Pre-training

Anthropic

Zürich, CHResearchMid-level

Anthropic seeks a mid-level Research Engineer or Scientist in Zurich to advance multimodal pre-training for large language models.

pythondeep learning frameworksml acceleratorskubernetes

Research Engineer, Science of Scaling

Anthropic

pythondeep learning frameworksjaxreinforcement learning

Mid-level research engineer role advancing large language model scaling through compute research and infrastructure work at Anthropic's London team.

Research Engineer / Scientist, Alignment Science

Anthropic

pythonmachine learningreinforcement learningllm evaluation

Mid-level research engineer role conducting ML experiments to advance AI alignment and safety for powerful future systems.

Research Engineer / Scientist, Alignment Science - London

Anthropic

pythonmachine learningreinforcement learningllms

Mid-level research engineering role conducting AI alignment experiments for Anthropic's London-based safety team.

Research Lead, Training Insights

Anthropic

Remote · Remote-Friendly (Travel Required) | San Francisco, CA; San Francisco, CA | New York City, NYResearchLead / Manager

Lead research developing evaluations to measure and track AI model capabilities across training and deployment.

llm evaluation designexperiment designcode implementationteam leadership

Research Operations, Discovery

Anthropic

San Francisco, CA | New York City, NYResearchMid-level

Mid-level role building operational systems, partnerships, and product strategy to support AI research teams at Anthropic.

research operationstechnical program managementsoftware developmentmachine learning

Research Scientist, Interpretability

Anthropic

mechanistic interpretabilityneural network reverse-engineetransformer circuitsexperiment design

Anthropic seeks a mid-level researcher to reverse-engineer algorithms in trained language models for mechanistic interpretability.

Software Engineer, Human Data Interface

Anthropic

San Francisco, CA | New York City, NYResearchMid-level

Mid-level software engineer role focused on designing scalable data collection systems and interfaces for AI model improvement at Anthropic.

full-stack engineeringsystem architecturedata pipeline designinternal tooling

Software Engineer, Research Data Platform

Anthropic

San Francisco, CA | New York City, NYResearchMid-level

Mid-level software engineer role building data tools and pipelines for AI researchers at Anthropic in San Francisco or New York.

etlsparkbigqueryduckdb

Strategic Partner Development, Product Partnerships - Cybersecurity

Anthropic

San Francisco, CA | New York City, NYResearchMid-level

Anthropic seeks an experienced cybersecurity partnerships specialist to develop strategic product collaborations across the security ecosystem.

partnershipsbdsiemedr

TPU Kernel Engineer

Anthropic

San Francisco, CA | New York City, NY | Seattle, WAResearchMid-level

TPU Kernel Engineer at Anthropic — San Francisco, CA | New York City, NY | Seattle, WA. Mid-level research role on the AI Research & Engineering team.

gorustawsrag

Transformative AI Research Economist, Economic Research

Anthropic

Transformative AI Research Economist, Economic Research at Anthropic — San Francisco, CA. Mid-level research role on the Public Policy team.

pythongorustaws

Performance Engineer, Inference Systems

Anthropic

San Francisco, CA | New York City, NY | Seattle, WAResearchMid-level

Mid-level performance engineer optimizing Anthropic's inference fleet across throughput, latency, reliability, and correctness.

profilingroofline analysislatency/throughput optimizatioroot-cause investigation

Anthropic Fellows Program

Anthropic

Remote · London, UK; Ontario, CAN; Remote-Friendly, United States; San Francisco, CAResearchMid-level

Anthropic Fellows Program funds mid-level technical talent for four-month empirical AI research projects with mentorship and public outputs.

empirical researchai safetyai securityml systems

Anthropic Fellows Program, AI Safety

Anthropic

Remote · London, UK; Ontario, CAN; Remote-Friendly, United States; San Francisco, CAResearchMid-level

Anthropic offers a four-month funded fellowship for empirical AI safety research producing public outputs with direct mentorship.

empirical researchai safetypaper writingopen-source models

Biological Safety Research Scientist

Anthropic

pythonscientific computingdata analysismolecular biology

Mid-level research role developing biological safety evaluations and safeguards for AI models on Anthropic's Safeguards team.

Full-Stack Software Engineer, Reinforcement Learning

Anthropic

San Francisco, CA | New York City, NYResearchMid-level

Mid-level full-stack engineer building RL platforms, UIs, and data systems for training at Anthropic in SF or NYC.

full-stack developmentbackend servicesapi designweb ui development

Engineering Manager, Research Tools

Anthropic

San Francisco, CA | New York City, NYResearchLead / Manager

Lead a team building efficient tools and infrastructure to support large-scale AI model finetuning and research productivity at Anthropic.

people managementproject managementrecruitingmachine learning

Data Scientist, GTM

Anthropic

New York City, NY; San Francisco, CA | New York City, NYResearchMid-level

Mid-level data scientist driving commercial analytics and measurement for Anthropic's consumption-based AI platform across the customer lifecycle.

pythonsqldata visualizationexperimental design

Machine Learning Systems Engineer, RL Engineering

Anthropic

San Francisco, CA | New York City, NY | Seattle, WAResearchMid-level

Mid-level engineer optimizing reinforcement learning infrastructure and algorithms to train reliable AI models like Claude.

pythondistributed systemsllm trainingrlhf

Research Engineer, Machine Learning (Reinforcement Learning)

Anthropic

pythontriopytorchtensorflow

Mid-level research engineer role advancing reinforcement learning systems for large language models at Anthropic in London.

Research Engineer, Knowledge Foundations

Anthropic

pythonml experimentsdata pipelinesreinforcement learning

Mid-level research engineer role improving Claude's knowledge search, retrieval, and reasoning via experiments and infrastructure.

Research Engineer, Knowledge Team

Anthropic

Remote · Remote-Friendly (Travel-Required) | San Francisco, CA | Seattle, WA | New York City, NYResearchMid-level

Anthropic seeks a mid-level Research Engineer to redesign information architectures enabling LLMs to interact optimally with external data.

pythonmachine learninglarge language modelsreinforcement learning

ML Infrastructure Engineer, Safeguards

Anthropic

pythonpytorchtensorflowjax

Mid-level ML Infrastructure Engineer role building scalable systems for AI safety evaluations at Anthropic in San Francisco.

Performance Engineer, GPU

Anthropic

San Francisco, CA | New York City, NY | Seattle, WAResearchMid-level

Anthropic seeks a mid-level Performance Engineer to optimize GPU systems for large language model training and inference at scale.

cudatritonpytorchjax

Research Engineer, Machine Learning (RL Velocity)

Anthropic

Remote · Remote-Friendly (Travel-Required) | San Francisco, CA | New York City, NYResearchMid-level

Mid-level research engineer role focused on enhancing RL infrastructure and velocity for AI model training at Anthropic.

software engineeringml infrastructuredistributed systemsresearch tooling

Research Engineer, Pretraining

Anthropic

pythonpytorchdeep learninglarge-scale machine learning

Research Engineer role on Anthropic's Pretraining team developing next-generation large language models via research and engineering.

Research Engineer, AI Observability

Anthropic