# Machine Learning Engineer at Witness AI

- Company: Witness AI
- What the company does: WitnessAI is the AI security and governance platform with network visibility, intent-based controls & runtime defense to secure every employee, model, application & agent. Backed by GV.
- Company website: https://witness.ai
- Type: Startups (AI role)
- Level: Mid level
- Location: Bay Area
- Work setup: On-site
- Pay: $36K to $60K base salary per year (USD)
- Posted: 2026-09-04
- Apply by: 2026-10-19
- Apply: https://jobs.ashbyhq.com/witnessai/17fc7435-f9b0-4c70-b582-d8f86d4f4d4c
- Page: https://www.1752.vc/careers/jobs/witness-ai-machine-learning-engineer/

## About the role

As a Machine Learning Engineer, you’ll design, build, and evaluate language models that power our AI security products. You’ll own the end-to-end pipeline — from dataset curation and preprocessing to experiment design, evaluation, and visualization of results. This role blends engineering and applied research, with an emphasis on producing reliable, interpretable, and safe language models. Build scalable pipelines to collect, preprocess, and manage datasets for training and evaluation of LLMs.

## What they're looking for

- Experience: 2–5+ years working in machine learning or data science, ideally in a security or infrastructure-heavy environment
- Strong software engineering background (Python, testing frameworks like pytest/unittest, CI/CD tools)
- Proficiency in ML frameworks such as PyTorch
- Experience with data engineering tools (e.g., Spark, Kafka, Airflow)
- Familiarity with deploying models on cloud platforms (AWS, GCP, or Azure) and containerized environments (Docker, Kubernetes)
- Strong knowledge of ML fundamentals (supervised/unsupervised learning, deep learning, NLP)

Tags: Engineering