Job Overview
Location
San Francisco, CA
Job Type
Full-time
Category
Data Science
Date Posted
June 19, 2026
Full Job Description
đź“‹ Description
- • As a Staff AI Research Scientist at Writer Inc., you will drive a high-impact research agenda focused on large language models, agentic reasoning, and system-level capabilities that power enterprise AI deployments used by hundreds of thousands of people daily.
- • You will lead independent research from hypothesis through model training, evaluation, and production deployment, design and execute large-scale post-training experiments using SFT, RLHF, RLAIF, DPO, and related techniques, build novel evaluation benchmarks, develop scalable data synthesis pipelines, shape model architecture and training roadmap, publish at top-tier venues, and mentor fellow researchers.
- • Writer is a $1.9B-valued enterprise generative AI leader founded in 2020, with hubs in San Francisco, New York City, Austin, Chicago, and London, serving clients like Mars, Marriott, Uber, and Vanguard through its end-to-end platform that unites IT and business teams via trustworthy, data-grounded AI agents.
- • You will advance the field of AI while shipping research directly into products, work with cross-functional teams to translate insights into enterprise-grade LLMs, and grow your expertise in agentic systems, alignment techniques, and scalable ML infrastructure in a fast-moving, mission-driven environment.
🎯 Requirements
- • 7+ years of hands-on ML research experience with deep expertise in large language model pre-training and post-training, including training models at scale and shipping measurable improvements
- • Expert-level knowledge of post-training methods including SFT, RLHF, RLAIF, DPO, GRPO, and related alignment and reasoning techniques, with a track record of applying them to production-grade systems
- • Strong command of Python and PyTorch (or JAX), with engineering depth to build and scale training pipelines, evaluation infrastructure, and data synthesis workflows independently
- • A meaningful publication record at competitive ML/AI venues (NeurIPS, ICLR, ICML, ACL, EMNLP, or equivalent)
- • Hands-on experience designing or evaluating agentic systems that plan, reason through multi-step tasks, use tools, and recover from errors
- • A Ph.D. in Computer Science, Machine Learning, NLP, or a related field, or equivalent demonstrated research experience with a strong portfolio of independent, published work
🏖️ Benefits
- • Generous PTO plus company holidays
- • Medical, dental, and vision coverage for you and your family
- • Paid parental leave for all parents (16 weeks)
- • Fertility and family planning support
- • Early-detection cancer testing through Galleri
- • Annual work-life stipends for wellness and learning and development
- • Company-wide and team off-sites
- • Competitive compensation, company stock options, and 401k
Skills & Technologies
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About Writer Inc.
Writer Inc. provides an enterprise-grade generative AI platform for creating, editing and governing business content. The system embeds into workflows to generate marketing copy, documentation, emails and other text while enforcing brand, style and compliance rules. It includes a language model, style guides, snippets, terminology management and analytics, all designed to maintain consistency across teams. Clients use Writer to accelerate content production, reduce revisions and ensure regulatory adherence without sacrificing human oversight.
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