# Staff AI Scientist

Hiring organization: [Fiddler AI](https://career.thegoodapps.co/organizations/fiddler-ai)

Canonical page: https://career.thegoodapps.co/jobs/4d718a06-3314-4d6a-96f3-e30e6862cd93

Listed on Fiddler AI's own careers site. Applications go to them directly.

- Seniority: Senior
- Location: Palo Alto, CA
- Remote: yes
- Salary: 175000 – 260000 USD per year

## Summary

A machine learning research and engineering role focused on building and deploying production-grade safety and quality classifiers for large language models and AI agents. This position suits experienced AI practitioners who thrive on translating research into hardened systems while mentoring others and maintaining close partnerships with enterprise customers.

_Our summary, not Fiddler AI's wording._

## Skills named

BERT, Hugging Face, LLM Fine-Tuning, Prompt Engineering, Python, PyTorch, Reinforcement Learning

## Required

- 7+ years of applied AI experience with models in production
- Experience with LLM or agentic evaluations and guardrailing
- Expertise training classifier models including encoder architectures and LLM-as-classifier approaches
- Hands-on dataset development: sourcing, labeling, synthetic generation, adversarial augmentation
- Applied experience with LLMs and agentic systems
- Proficiency in Python and PyTorch, Hugging Face
- Comfortable working in production environments with backend and platform engineers
- Excellent written and verbal communication
- Ability to work in Palo Alto office 2-3 days per week

## Nice to have

- M.S. or Ph.D. in Computer Science, Machine Learning, Statistics, Physics, or related quantitative field
- Published research at top ML or NLP venues (NeurIPS, ICML, ICLR, ACL, EMNLP)
- Experience with RLHF, RLAIF, or preference-based fine-tuning
- Experience with large-scale synthetic data generation pipelines
- Background in AI safety, red-teaming, or adversarial ML
- Experience with enterprise customers in regulated industries

Apply on Fiddler AI's site: https://jobs.ashbyhq.com/fiddler-ai/819f8925-b249-4b1a-b735-aec792624f68/application