# Tech Lead - Data Scientist at Obsidian Security

- Company: Obsidian Security
- What the company does: Obsidian Security delivers complete SaaS security—gain control, stop threats, and ensure compliance across all your business apps. Backed by Greylock, Norwest and GV.
- Company website: https://www.obsidiansecurity.com/
- Type: Startups
- Level: Senior
- Location: Newport Beach, California, USA
- Work setup: On-site
- Posted: 2026-05-07
- Apply by: 2026-10-08
- Apply: https://job-boards.greenhouse.io/obsidiansecurity/jobs/5213687008
- Page: https://www.1752.vc/careers/jobs/obsidian-security-tech-lead-data-scientist/

## About the role

We are looking for a Technical Lead to drive the development of Obsidian's core ontology that powers our groundbreaking unified security config analysis, AI security, and threat detection product.

## What they're looking for

- 6+ years of experience in data science, machine learning, or applied research, preferably with 2+ years in a technical leadership role
- A track record of shipping production ML or data systems at scale — ideally systems involving ontologies, knowledge graphs, entity resolution, or semantics over heterogeneous data sources
- Expert-level proficiency in Python and modern ML/data tooling
- Working knowledge of core security domains, or a strong ability to learn
- Experience formulating fuzzy business or security problems as concrete ML/data problems:
- able to decompose ambiguous, ambitious problems into well-scoped subproblems and design experiments with statistical rigor

Tags: Engineering (D2010)