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Role description

SRE/Infrastructure Engineer

Runsybil logoRunsybil
TypeFull-time
WorkplaceHybrid
SeniorityMid-level
LocationNew York, NY
Posted7/7/2025
Engineering

About RunSybil

RunSybil is an AI security startup scaling offensive security services by automating hacker intuition. We’re building Sybil: an AI-powered penetration testing product that finds vulnerabilities faster than human hackers. Backed by strong investor support and early customer traction, our team is composed of experts from the likes of OpenAI, Meta, Mandiant, Palantir, Cruise, and Trail of Bits.

About this Role

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.

What You’ll Do:

  • 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

We’re Looking For Someone Who Has A Mix of The Following:

  • 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, CloudFormation, or similar)
  • Experience with monitoring, logging, and observability tools (New Relic, OpenTelemetry, 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

Location:

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

What We Offer:

  • Competitive Salary: Attractive startup compensation package with equity options
  • Benefits: Excellent medical, dental, and vision plans. Unlimited PTO
  • Growth Opportunities and Early Impact: Work directly with and learn from industry leaders while driving significant impact in our fast-growing security startup

We understand not every applicant will meet every qualification. We value hard work and potential, and still want to hear from you!

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Company info

Runsybil logo

Runsybil

Automated hacker intuition. We’re hiring!

RunSybil is an AI-native offensive security platform that autonomously discovers and exploits real-world vulnerabilities across modern applications. Sybil agents interact with systems like expert attackers: interacting with systems dynamically, exploring authentication boundaries, finding and validating vulnerabilities, and surfacing real data exposure. The result is continuous, black-box security testing with real validation: no code access required, 90% fewer false positives, and visibility into the vulnerabilities that actually expose data.

Private companySeed
Founded2023
HQSan Francisco, United States
Size24 employees
Unlock human wisdom
ThesisTermsPrivacy
Industry
Computer and Network Security
Funding
  • Seed · Mar 18, 2026

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