# Machine Learning Engineer, Data Privacy & Anonymization at AfterQuery

- Company: AfterQuery
- What the company does: AfterQuery captures how experts reason and turns real-world professional work into high-quality training data for frontier foundation models. Backed by Y Combinator.
- Company website: https://afterquery.com
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco
- Work setup: On-site
- Pay: $260K to $290K base salary per year (USD)
- Posted: 2026-07-11
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/afterquery/a06f0b5f-63f6-4e33-a195-e2f5d5f6e1b1
- Page: https://www.1752.vc/careers/jobs/afterquery-machine-learning-engineer-data-privacy-and-anonymization/

## About the role

AfterQuery builds the data and evaluation systems that power frontier AI models. Every leading AI lab uses our datasets and reinforcement learning environments to encode and scale real-world expertise.

## What they're looking for

- 3-6 YOE with relevant experiences
- Strong software engineering background with experience shipping production systems
- Experience building data pipelines at production scale, handling large volumes of data
- Applied NLP: NER, sequence labeling, or information extraction on messy text. Fraud or trust/safety detection work where recall on rare events was the objective also counts
- Experience with low-latency inference services: streaming pipelines, sidecars, or event systems
- Ability to move quickly in a high-ownership, fast-changing environment

Tags: Engineering