Modal

Infrastructure Security Engineer

Modal3 weeks ago
Location

New York

Type

Full Time

Salary

USD 150,000 – 270,000

Level

Senior

Role

Security Engineer

Posted

Apr 21, 2026

Full TimeSenior

The role

Summary

Modal is seeking an Infrastructure Security Engineer to design and secure core systems powering their AI infrastructure platform. The ideal candidate will build robust security mechanisms for multi-tenant, cloud-native environments, focusing on container isolation, identity management, and infrastructure protection across distributed computing systems.

What you'll do

Platform Security Design: Design and improve isolation mechanisms for multi-tenant workloads and containerized environments
Access Management: Implement robust authentication, authorization, and service identity systems with least-privilege access patterns
Infrastructure Protection: Secure cloud environments across providers with focus on consistency, network boundaries, and service segmentation
Secrets Management: Build and maintain secure systems for managing credentials, tokens, and implementing secure rotation practices
Security Engineering: Collaborate with product and infrastructure teams to embed security into system design and infrastructure-as-code

What we look for

Technical

Cloud InfrastructureProven experience securing cloud-native distributed systems in production environments
Container SecurityAdvanced knowledge of containerization and orchestration security
Network SecurityDeep understanding of network segmentation, service communication, and access control

Education

Computer ScienceBachelor's or equivalent experience in Computer Science, Cybersecurity, or related technical discipline

Experience

Production SystemsHands-on experience in multi-tenant or high-scale computing environments
Security EngineeringBackground in infrastructure, backend, or dedicated security engineering roles

Skills

Required skills

Cloud SecurityExpertise in securing cloud-native infrastructure and distributed systems
KubernetesStrong understanding of containerization and orchestration security
Identity ManagementExperience with authentication, authorization, and service identity models
Networking SecuritySolid foundation in network segmentation and access control

Nice to have

Runtime IsolationExperience with sandboxing technologies like gVisor or Firecracker
Low-Level SecurityFamiliarity with kernel-level isolation primitives
Multi-Tenant SystemsBackground in securing high-scale, multi-tenant environments

Compensation & benefits

Salary

USD 150,000 – 270,000 (annual)

Stock options

Available

Benefits

Equity

Stock options in a high-growth AI infrastructure startup

Healthcare

Comprehensive medical, dental, and vision insurance

Professional Development

Budget for conferences, training, and continuous learning

Flexible Work

Remote-friendly work environment with potential NYC/SF office access

Interview process

  1. 1
    Initial Screening — Phone or video call with recruiting team to discuss background and role fit
  2. 2
    Technical Interview — In-depth discussion of security architecture, system design, and technical capabilities
  3. 3
    Systems Design Challenge — Practical assessment of infrastructure security design skills
  4. 4
    Team Interview — Meetings with potential team members to assess collaboration and cultural fit
  5. 5
    Final Executive Interview — Conversation with senior leadership to align on role expectations and company vision
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Modal

Modal

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Modal is a cloud computing platform that enables developers to build, deploy, and scale applications without managing underlying infrastructure. The company provides serverless computing solutions that allow developers to run code on demand, handle background jobs, and deploy machine learning models with minimal operational overhead. Modal serves software developers and organizations looking to streamline their application development and deployment processes in the cloud.

San Francisco, USAFounded 2021modal.com

Tech Stack

Languages
PythonGo
Frameworks
Zero Trust
Tools
KubernetesAWSGCPTerraform
Other
Container Security
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