# Senior AI Security Engineer at Onestream

- Company: Onestream
- What the company does: Finance and operations often live in separate systems, hiding risk and slowing decisions. OneStream connects both, giving leaders the full picture, not just one department's view. It's a unified EPM (enterprise performance management) platform built for the... Backed by General Atlantic.
- Company website: https://www.onestream.com/
- Type: Startups (AI role)
- Level: Senior
- Location: United States
- Work setup: On-site
- Posted: 2026-10-22
- Apply by: 2026-12-06
- Apply: https://job-boards.greenhouse.io/onestream/jobs/4462412009?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/onestream-senior-ai-security-engineer/

## About the role

That mission comes to life through our people. Behind every innovation, customer success, and milestone are talented people working together to make a difference. That's why we're looking for people who are bold enough to think big, authentic in how they lead and collaborate, curious about what's possible, and committed to delivering results. Want a closer look before you apply? Explore our Careers site to learn more about our people, culture, and benefits. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Define, implement, and own the metrics program for internal AI security, and report AI security posture and program progress to Security leadership
- Act as incident lead for security incidents involving internal AI systems: investigate, contain, and remediate AI-related incidents and drive lessons learned into controls and detections
- Monitor the emerging AI threat landscape and frontier model capabilities and translate developments into updated controls, detections, and guidance for the organization
- Provide technical leadership and mentorship to AI Security team members, including onboarding and guiding future AI Security hires, and raise AI security capability across the broader Security team
- Bachelor’s degree in Computer Science, Cybersecurity, or a related field, or equivalent experience
- 6+ years of experience in security engineering, security operations, application security, or a related security discipline, including military or government cybersecurity roles

Tags: Information Security

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/onestream-senior-ai-security-engineer/