SRE​/Infrastructure Engineer

About Run Sybil

Founded in 2023 by Ari Herbert‑Voss and Vlad Ionescu, Run Sybil is on a mission to automate hacker intuition. We’re building Sybil: an AI‑driven pentester that discovers vulnerabilities before they’re exploited. As adversaries adopt AI to increase their attack surface, we’re putting cutting‑edge offensive security into the hands of defenders. Backed by strong investor support and early customer traction, our team is composed of experts from OpenAI, Meta, Mandiant, Palantir, Cruise, Trail of Bits, and Aptiv.

We are seeking talented engineers intent on changing the security industry. If you have experience on fast‑moving teams, scaling infrastructure with an eye towards reliability, and relentlessly optimizing: we want to talk to you.

• Care and feeding of production and testing environments

• Architect secure, scalable systems for running automated penetration testing at scale

• Scale database, storage, and compute infrastructure to preempt customer demand growth

• Propose and implement technical initiatives based on product roadmap needs

• Lead technical design discussions, contribute to team decisions, and provide feedback on engineering approaches

• Translate ambiguous technical challenges into actionable plans, and execute them in collaboration with the team

• Serve as the cornerstone of our engineering culture by setting and upholding exemplary standards for code quality, practices, and craftsmanship

• 4+ years of experience building and managing production infrastructure

• Strong experience with cloud platforms (AWS, GCP, or Azure) and container orchestration

• Strong understanding of networking, load balancing, and distributed systems

• Proficiency with Infrastructure as Code (Terraform, Cloud Formation, or similar)

• Experience with monitoring, logging, and observability tools (New Relic, Open Telemetry, Prometheus, ELK, etc.)

• Knowledge of security best practices, network isolation, and compliance frameworks

• Experience with CI/CD pipelines and automated deployment systems

• Familiarity with database management (PostgreSQL, vector databases, object storage)

• Seeks autonomy, creative problem‑solving, and moving quickly in an ambiguous environment

Hybrid role based in New York City. Some travel may be required.

Diverse teams build better products. Run Sybil is committed to hiring people who bring different perspectives, lived experiences, and backgrounds to our work. We encourage candidates of all races, ethnicities, gender identity and expression, sexual orientation, disability or medical conditions, ages, religions, and socioeconomic backgrounds to apply. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

If you’re excited about this role but don’t check every box, we still want to hear from you.