Cohere
Senior Member of Technical Staff, Safety and Security for Agents
$250K–$535K
London +5 · Hybrid · Staff · Full-time · Posted Mar 23, 2026
- Location
- London
New York
Edinburgh
Paris
Toronto
Montreal
About the job
Develop and evaluate data, post-training methods, and safety measures for LLM agents that use external resources and take actions.
What you'll do
- Design and conduct data collection, including work with human annotators, and assess dataset quality, bias, and suitability for model training.
- Train and evaluate LLMs, including experiments on model performance, robustness, and generalizability.
- Collaborate with machine learning, data annotation, product, and policy teams to improve agent safety.
What they ask for
- Strong statistical and software engineering skills.
- Experience evaluating scientific experiments and designing data collection tasks, including working with human annotators.
- Hands-on experience training LLMs on distributed training infrastructures.
- Proficiency in Python and ML frameworks such as PyTorch, TensorFlow, or JAX; one or more papers at a top-tier venue.
Nice to have
Pay
CA$250K – CA$535K (base salary)
Tools
Python, PyTorch, TensorFlow, JAX
AI focus
Safety research and development for LLM agents, including data generation, post-training algorithms, evaluation, robustness, and responsible AI.
Model-written summary · the original posting is authoritative