Job Details

Who is Recruiting from Scratch: Recruiting from Scratch is a specialized talent firm dedicated to helping companies build exceptional teams. We partner closely with our clients to deeply understand their needs, then connect them with top-tier candidates who are not only highly skilled but also the right fit for the company's culture and vision. Our mission is simple: place the best people in the right roles to drive long-term success for both clients and candidates.

Title of Role: Security Engineer
Location: San Francisco, CA (On-site)
Company Stage of Funding: Hyper-Growth, Highly Profitable Private Company
Office Type: On-site, Full-Time
Salary: Competitive (based on experience) + Equity
Company Description
We're representing one of the fastest-growing companies in the world, scaling from $1M to $500M in revenue run rate in just 17 months - with accelerating growth rates month over month. The company develops AI-powered systems trusted by the top 5 global AI labs, enabling faster and more accurate performance prediction in hiring and evaluation.

With a lean and profitable team, they're scaling rapidly and looking for engineers eager to take ownership of security in a high-impact environment.
What You Will Do
As a Security Engineer, you'll safeguard core systems, infrastructure, and data while ensuring security is integrated seamlessly into development and deployment processes. You will:

• Design and implement security controls across infrastructure, applications, and networks.
• Monitor for vulnerabilities, threats, and suspicious activity.
• Conduct penetration tests, vulnerability assessments, and incident response.
• Embed security practices into CI/CD pipelines and developer workflows.
• Ensure compliance with frameworks (SOC 2, ISO 27001, GDPR).
• Partner with engineers to make security a first-class part of system design.
• Research and respond proactively to emerging threats.

Ideal Background

• Strong knowledge of security principles, tools, and best practices.
• Experience with SIEMs, IDS/IPS, firewalls, and vulnerability scanning.
• Familiarity with cloud security (AWS, GCP, or Azure).
• Solid understanding of encryption, authentication, and authorization systems.
• Track record of securing distributed, high-scale environments.
• Excellent collaboration and communication skills.
• Ability to balance security rigor with speed in a hyper-growth environment.

Why Join

• Impact: Own the security function that powers critical infrastructure for the world's leading AI labs.
• Learning: Gain early exposure to frontier AI systems and emerging risks.
• Growth: Take on both infrastructure and research-adjacent projects with fast paths to ownership.

Compensation and Benefits

• Salary: Highly competitive (commensurate with experience)
• Equity: Generous early-stage equity package
• Work Setup: On-site in San Francisco
• Other Benefits:
  
  • Direct ownership of security architecture and practices
  • Chance to shape security culture in a hyper-growth engineering environment
  • Work alongside senior engineers at the intersection of AI and infrastructure

This role is perfect for security engineers who want to build practical, scalable defenses in high-growth environments - balancing rigor with speed while safeguarding mission-critical AI infrastructure.
Salary Range: $130,000-$500,000 base.