Anthropic · 2 weeks ago
Research Engineer, Production Model Post Training
Seattle, WA
Full-time
Hybrid
Senior Level
$315K/yr - $340K/yrAnthropic is a public benefit corporation dedicated to creating reliable and interpretable AI systems. As a Research Engineer on the Post-Training team, you will implement and optimize post-training techniques to enhance the capabilities and safety of production AI models.
Artificial Intelligence (AI)Foundational AIGenerative AIInformation TechnologyMachine Learning
Responsibilities
Implement and optimize post-training techniques at scale on frontier models
Conduct research to develop and optimize post-training recipes that directly improve production model quality
Design, build, and run robust, efficient pipelines for model fine-tuning and evaluation
Develop tools to measure and improve model performance across various dimensions
Collaborate with research teams to translate emerging techniques into production-ready implementations
Debug complex issues in training pipelines and model behavior
Help establish best practices for reliable, reproducible model post-training
Qualification
Required
Bachelor's degree in a related field or equivalent experience
Proficiency in Python
Experience with deep learning frameworks
Experience with distributed computing
Strong software engineering skills with experience building complex ML systems
Experience with training, fine-tuning, or evaluating large language models
Ability to balance research exploration with engineering rigor and operational reliability
Adept at analyzing and debugging model training processes
Ability to collaborate across research and engineering disciplines
Ability to navigate ambiguity and make progress in fast-moving research environments
Preferred
Experience with LLMs
Keen interest in AI safety and responsible deployment
Hands-on experience with frontier AI systems
Benefits
Equity and benefits
Optional equity donation matching
Generous vacation and parental leave
Flexible working hours
A lovely office space in which to collaborate with colleagues
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
2026-01-13
Company data provided by crunchbase