Security Engineer

We are looking for a strong full-stack engineer who wants to work across infrastructure, product, and user experience. This is a high-ownership role with the chance to shape both technical architecture and product direction from an early stage.

What you'll own

• Threat model our backend systems, cloud infrastructure, and sandbox architecture
• Design and implement security controls for multi-tenant environments using containers, VMs, and Kubernetes
• Harden sandbox isolation and reduce risks of escape, privilege escalation, data leakage, and abuse
• Improve secrets handling, key management, authentication, authorization, and service-to-service trust
• Build monitoring, alerting, logging, and detection systems for attacks and suspicious behavior
• Lead security reviews for product and infrastructure changes
• Define secure defaults for user sandboxes, file handling, browser-based tooling, and agent execution
• Work closely with engineering to improve privacy, security, and reliability together
• Help establish incident response practices, security playbooks, and postmortem culture
• Contribute to confidential computing or enclave-based approaches where useful

Qualifications:

• Bachelor's degree in Computer Science or a related field, or equivalent practical experience. Master's degree or equivalent industry experience is preferred.
• 1+ years of professional security engineer experience.
• Strong understanding of application security, infrastructure security, and cloud security
• Experience with some mix of:
  • Linux hardening, container security, Kubernetes security
  • IAM / authn / authz
  • Network security and segmentation
  • Secrets management, secure SDLC, vulnerability management
  • monitoring, detection, and incident response
• Ability to identify realistic attack paths and prioritize practical mitigations
• Are strong with AI-assisted coding, but do not trust generated code blindly and can manually inspect and debug it carefully
• Communicate clearly and can work well with both teammates and users
• Enjoy ownership, ambiguity, and moving quickly

Nice to have:

• Experience securing multi-tenant systems or sandboxed execution platforms
• Familiarity with SELinux, seccomp, AppArmor, eBPF, or related technologies
• Experience with OpenClaw or similar AI agent systems
• Experience with browser isolation or untrusted code execution environments
• Familiarity with confidential computing / TEEs / enclaves
• Experience doing security design reviews, pentest follow-up, or incident response
• Ability to write or review backend code in Go, Rust, Python, or similar languages

Why join

• Work on meaningful security problems in a modern AI infrastructure stack
• Build security into the product from an early stage
• Own real systems, not just compliance checklists
• Have direct influence on architecture and engineering practices
• Competitive compensation in cash + equity

Work authorization

Candidates must already have authorization to work in the US, or authorization to work in the country where they live. We do not sponsor H-1B visas.

Start

As soon as possible.

About GenseeAI:

GenseeAI is a research-based, quickly growing startup building the foundational infrastructure layer for the future of AI agents. Instead of building another agent, we focus on the harder and more important layer underneath: making agents execute with far better efficiency, safety, security, and privacy in real production environments.