Writer

AI research scientist

San Francisco, CA, Remote. Posted 3 days ago

The role

You will drive a research agenda on large language models and agentic systems, from data synthesis and training to evaluation and production deployment. You will work on post-training methods and multi-step reasoning, and publish research at top venues.

What you will do

  • Drive a research agenda on large language models and agentic systems
  • Design and run post-training experiments such as SFT, RLHF, RLAIF and DPO
  • Build evaluation benchmarks for complex enterprise tasks
  • Develop data synthesis and curation pipelines, including LLM-as-judge frameworks
  • Shape model architecture and training roadmap with research engineering and product teams
  • Publish and present research at venues such as NeurIPS, ICLR, ICML and ACL
  • Help set a high bar for scientific rigor and research culture

Required qualifications

  • 4+ years of hands-on ML research experience (can include years obtaining an advanced degree)
  • Deep expertise in LLM pre-training and post-training
  • PhD in Computer Science, Machine Learning, NLP or a related field, or equivalent demonstrated research experience
  • Expert knowledge of SFT, RLHF, RLAIF, DPO, GRPO and related techniques
  • Strong command of Python and PyTorch (or JAX)
  • One or more publications at a competitive ML/AI venue
  • Hands-on experience designing or evaluating agentic systems

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
  • Flexible spending account and dependent FSA options
  • Health savings account for eligible plans with company contribution
  • Wellness stipend for gym, massage/chiropractor, personal training and more
  • Learning and development stipend
  • Company-wide and team off-sites
  • Competitive compensation, company stock options and 401k

Before you apply

  • Open to Senior applicants; hiring at multiple levels with pay scaled to experience
  • Qualified applicants with arrest and conviction records will be considered (San Francisco Fair Chance Ordinance)

About the company

WRITER is an AI platform for marketing and revenue teams, with autonomous agents and an Enterprise Brain focused on trust and governance. Fortune 500 companies, including several large banks, CPG companies and healthcare insurers, use its products.

AI research scientist at Writer | JobZoey