Senior Cloud Platform Security Engineer

CoStar Group

Confirmed live today High trust
Hybrid

Quick summary

Work type
Hybrid
Location
Arlington, VARichmond, VAIrvine, CA
Salary
$115,000–$203,000 / yr
Employment
Full-time
Posted
14 days ago
Freshness
Confirmed live today

Market check

Salary context

Competitive pay

How this pay compares to similar roles

Similar $177k
This role $159k
$104k $221k
below market most similar roles pay here above market

This role pays less than 52% of similar roles. Most pay $151,000–$203,534 — the blue band above. At the midpoint, this role pays about $159k versus about $177k for comparable roles.

Based on 240 similar postings.

Employer

About CoStar Group

CoStar Group is the leading provider of commercial real estate information, analytics, and online marketplaces, including CoStar, Apartments.com, and LoopNet platforms. Industry: Commercial Real Estate Data & Analytics

CoStar Group currently has 59 open roles on FindRole.

Listed pay typically runs $133,000–$190,000 across 59 roles with salary data.

Most-posted roles

View all roles at CoStar Group

At a glance

TL;DR · Senior Cloud Platform Security Engineer

The Senior Cloud Platform Security Engineer joins the product platform security engineering group to build and operate centralized security controls for a large portfolio of web applications. This role involves enforcing security posture across AWS, GCP, and Azure using preventative and detective controls, while leading workload protection strategies for EKS clusters. Key responsibilities include securing AI-powered features and agentic workflows, integrating automated scanning into CI/CD pipelines, and implementing infrastructure as code. The candidate will utilize tools such as Wiz, Datadog, Prisma Cloud, and Snyk, while authoring scripts in Python, PowerShell, Ansible, CloudFormation, or Terraform. The position focuses on solving complex security challenges within cloud-native environments, including Kubernetes hardening, software supply chain security, and establishing guardrails for emerging AI surfaces.

What you'll do

  • Enforce security posture across AWS, GCP, and Azure using preventative and detective controls.
  • Build detection patterns and escalation paths in partnership with the incident response team.
  • Lead workload protection strategy for EKS clusters, including runtime monitoring and secrets management.
  • Secure AI-powered features and agentic workflows by leading threat modeling and building guardrails.
  • Integrate automated scanning tools and IaC solutions into CI/CD pipelines.
  • Implement automated remediation processes to scale security across all web applications.
  • Provide feedback to product development teams on secure coding practices and risk remediation.

What we're looking for

  • Bachelor’s Degree from an accredited university (preferred in Computer Science, Cybersecurity, or a related field).
  • 6+ years of hands-on security engineering experience.
  • Experience securing cloud-native environments, with a preference for AWS.
  • Experience with Kubernetes platform hardening, monitoring, and containerized application deployments.
  • Experience with CI/CD pipelines, Infrastructure as Code (IaC), and software supply chain security.
  • Ability to author scripts or IaC from scratch using Python, PowerShell, Ansible, CloudFormation, Terraform, or similar.
  • Experience securing AI-powered applications, including threat modeling for LLM-based features and agentic systems.
  • Experience with tools such as AWS GuardDuty, Security Hub, EKS, OPA/Gatekeeper, Falco, Wiz, Datadog, Prisma Cloud, Orca, Upwind, or Snyk (preferred).

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