Anthropic · 1 day ago
Research Engineer, Machine Learning (Horizons)
San Francisco, CA | New York City, NY
Full-time
Hybrid
Mid, Senior Level
$280K/yr - $425K/yrAnthropic is a public benefit corporation focused on creating reliable and beneficial AI systems. The Research Engineer on the Horizons team will collaborate with researchers and engineers to enhance the capabilities and safety of large language models through research and engineering responsibilities.
Artificial Intelligence (AI)Foundational AIGenerative AIInformation TechnologyMachine Learning
Responsibilities
Architect and optimize core reinforcement learning infrastructure, from clean training abstractions to distributed experiment management across GPU clusters. Help scale our systems to handle increasingly complex research workflows
Design, implement, and test novel training environments, evaluations, and methodologies for reinforcement learning agents which push the state of the art for the next generation of models
Drive performance improvements across our stack through profiling, optimization, and benchmarking. Implement efficient caching solutions and debug distributed systems to accelerate both training and evaluation workflows
Collaborate across research and engineering teams to develop automated testing frameworks, design clean APIs, and build scalable infrastructure that accelerates AI research
Qualification
Required
Proficient in Python and async/concurrent programming with frameworks like Trio
Experience with machine learning frameworks (PyTorch, TensorFlow, JAX)
Industry experience in machine learning research
Ability to balance research exploration with engineering implementation
Enjoy pair programming
Care about code quality, testing, and performance
Strong systems design and communication skills
Passionate about the potential impact of AI and committed to developing safe and beneficial systems
At least a Bachelor's degree in a related field or equivalent experience
Preferred
Familiarity with LLM architectures and training methodologies
Experience with reinforcement learning techniques and environments
Experience with virtualization and sandboxed code execution environments
Experience with Kubernetes
Experience with distributed systems or high-performance computing
Experience with Rust and/or C++
Formal certifications or education credentials
Academic research experience or publication history
Benefits
Equity
Benefits
Incentive compensation
Generous vacation and parental leave
Flexible working hours
Company
Anthropic
Anthropic is an AI research company that focuses on the safety and alignment of AI systems with human values.
Founded in 2021
501-1000 employees
H1B Sponsorship
Anthropic has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (105)
2024 (13)
2023 (3)
2022 (4)
2021 (1)
Funding
Current Stage
Late StageTotal Funding
$33.74BKey Investors
Lightspeed Venture PartnersGoogleAmazon
2025-09-02Series F· $13B
2025-05-16Debt Financing· $2.5B
2025-03-03Series E· $3.5B
Leadership Team
Dario Amodei
CEO & Co-Founder
Daniela Amodei
President and co-founder
Recent News
Qualcomm Ventures
2026-01-10
2026-01-09
Company data provided by crunchbase