Lead AI Cloud Security Architect (Hybrid)

Lambda Inc.; San Francisco (CA); Hybrid; USD 180,000 - 260,000; Full time

Benefits offered by this job

Health insurance

Dental coverage

Vision coverage

401k match

Flexible PTO

Job summary

Lambda is seeking a senior security architect to define data protection and platform security across its AI infrastructure. You will shape secure-by-default patterns for GPU clusters, multi-cloud control planes, and data lifecycles. The role emphasizes confidential computing, KMS/HSM, DLP, and zero-trust policies in a fast-paced startup setting.

You will mentor engineers, author architectural whitepapers, and align security roadmaps with cross-functional teams, including IT, Legal, and Product.

Qualifications

• 10+ years of total engineering experience with 5+ years specializing in security architecture, platform security, or data protection at cloud/infrastructure scale.
• Deep expertise in data security concepts including encryption key management (KMS/HSM), cryptographic protocols, DLP, and confidential computing primitives.
• Proven track record of designing multi-tenant platform security architecture across heterogeneous infrastructure (bare-metal GPU clusters, hypervisors, KVM, Kubernetes, and public cloud).
• Strong technical skills in prototyping security designs and reference code in Python, Go, or similar languages.
• Demonstrated experience with threat modeling methodologies (STRIDE, PASTA, etc.) and security design reviews for high-consequence systems.
• Strong communication and stakeholder management skills, with a track record of partnering effectively with IT, Legal, and HR.
• Ability to balance robust enterprise security controls with employee experience and productivity.
• Thrives in fast-moving, high-growth startup environments where building scalable structure is required.

Responsibilities

• Architect, design, and standardize end-to-end data protection strategy across data classification, KMS/HSM, and DLP.
• Define data lifecycle security controls for training datasets, checkpoint storage, and model artifacts across cloud and on‑prem storage.
• Drive confidential computing architectures and hardware-backed data security guarantees for high-consequence workloads.
• Establish robust zero-trust data access policies and fine-grained authorization frameworks for sensitive APIs and data repositories.
• Design and enforce core platform security architectures across multi-tenant GPU infra, bare-metal clusters, hypervisors, and Kubernetes.

Skills

Security architecture

Data protection

KMS/HSM

Threat modeling

Zero-trust

Multi-tenant security

Python

Go

Kubernetes

Terraform

Tools

Kubernetes

Terraform

Python

Go

KVM

Job description

Lambda is seeking a senior security architect to define data protection and platform security across its AI infrastructure. You will shape secure-by-default patterns for GPU clusters, multi-cloud control planes, and data lifecycles. The role emphasizes confidential computing, KMS/HSM, DLP, and zero-trust policies in a fast-paced startup setting.

You will mentor engineers, author architectural whitepapers, and align security roadmaps with cross-functional teams, including IT, Legal, and Product.