Senior Security Engineer, Infrastructure

Instacart

Posted 2mo ago

The employer’s full description could not be read from their board. This is a summary of the posting — follow the apply link for the original.

Identify business-critical risks across cloud accounts, identity stack, AI/agent platforms, and product services
Define remediation strategies that scale
Build secure-by-default primitives
Operate SaaS and internal security platforms
Extend security platforms with internal tooling
Lead investigations, root-cause incidents and findings
Drive variant analysis across the codebase
Coach and mentor engineers

5+ years in security engineering
Depth in cloud security (AWS/GCP), identity & access engineering, vulnerability management at scale, or secure infrastructure platform engineering
3+ years of experience performing code reviews and design reviews
Proficiency in Python or TypeScript
Working knowledge of cloud IAM
Hands-on Infrastructure-as-Code experience (Terraform, CloudFormation, or equivalent)
Experience driving a remediation program end-to-end
Understanding of SaaS architectures, common risks, and threat models
Experience with Variant Analysis, Root Cause Analysis, or Secure Frameworks

Track record of security research, competitive hacking, or OSS contributions
Track record building internal security platforms that other engineers actually adopt
Policy-as-code authoring at organization scope (OPA/Rego, Terraform Sentinel/equivalent)
Cloud Security Posture Management (CSPM) at scale (Wiz/Prisma/equivalent)
Identity governance experience with a modern IGA stack (ConductorOne, Sailpoint, Veza, or equivalent)
Experience securing AI/LLM platforms

Skills