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Platform Security Engineer Jobs (NOW HIRING)

xAI

Security Engineer - Platform Security

Palo Alto, CA · On-site

They are seeking a talented Security Engineer to join the Platform Security team, responsible for building security solutions to protect Kubernetes-based infrastructure and advance secure AI-driven ...

xAI

Security Engineer - Platform Security

Palo Alto, CA · On-site

$180K - $440K/yr

ABOUT THE ROLE: We are seeking a talented and driven Security Engineer to join Platform Security team, where you will build cutting-edge security solutions to protect our Kubernetes-based ...

Opala

Senior Platform Security Engineer

Seattle, WA · On-site +1

$163K - $192K/yr

You'll bridge platform engineering and security, building paved-road guardrails that make it easy for developers to ship securely in a healthcare data environment. You'll also both "lead by doing ...

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Platform Security Engineer information

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How much do platform security engineer jobs pay per year?

As of Jun 13, 2026, the average yearly pay for platform security engineer in the United States is $152,773.00, according to ZipRecruiter salary data. Most workers in this role earn between $143,000.00 and $158,500.00 per year, depending on experience, location, and employer.

What engineer makes $500,000 a year?

A Platform Security Engineer with extensive experience, advanced skills in cybersecurity, and relevant certifications can earn $500,000 or more annually, especially in high-demand industries or senior leadership roles. Such compensation often includes base salary, bonuses, and stock options, typically found in large tech companies or organizations with critical security needs.

What are some typical challenges faced by Platform Security Engineers, and how do they address them?

Platform Security Engineers often encounter challenges such as keeping up with an ever-changing threat landscape, ensuring secure integrations with third-party systems, and balancing robust security measures with business needs for usability and performance. They address these by staying up-to-date with industry trends, conducting regular risk assessments, and working closely with software development, DevOps, and IT teams to implement best practices. A proactive and adaptive approach, combined with ongoing communication with stakeholders, is key to overcoming these challenges and maintaining a secure and resilient platform environment.

What engineers make $300,000 a year?

Senior platform security engineers, cybersecurity architects, and senior software engineers with specialized skills and extensive experience can earn $300,000 or more annually. High salaries often require advanced certifications, expertise in security tools, and leadership roles within organizations.

What are the key skills and qualifications needed to thrive in the Platform Security Engineer position, and why are they important?

To thrive as a Platform Security Engineer, you need a strong background in cybersecurity principles, systems architecture, and secure coding practices, often backed by a degree in computer science or a related field. Familiarity with tools like SIEM platforms, vulnerability scanners, cloud security services, and certifications such as CISSP or AWS Security Specialty is highly valued. Analytical thinking, effective communication, and the ability to collaborate across interdisciplinary teams are critical soft skills. These competencies ensure the design, implementation, and maintenance of resilient platforms that protect organizational assets against evolving threats.

What does a platform Security Engineer do?

A platform Security Engineer designs, implements, and maintains security measures to protect an organization’s infrastructure, systems, and applications. They identify vulnerabilities, respond to security incidents, and often work with tools like firewalls, intrusion detection systems, and security information and event management (SIEM) platforms. Strong knowledge of network protocols, security best practices, and relevant certifications such as CISSP or CISA are common in this role.

What is a Platform Security Engineer job?

A Platform Security Engineer is responsible for securing an organization's infrastructure, applications, and cloud environments. They design and implement security controls, monitor for threats, and ensure compliance with security standards. Their role includes working with development and operations teams to integrate security into CI/CD pipelines, manage vulnerabilities, and respond to incidents. This position requires expertise in areas like authentication, encryption, and infrastructure security to protect platforms from cyber threats.

Can you make $500,000 a year in cyber security?

Platform Security Engineers with extensive experience, advanced skills, and certifications such as CISSP or CISM can potentially earn $500,000 or more annually, especially in high-demand industries or senior leadership roles. Achieving this level often requires a combination of technical expertise, strategic responsibilities, and working in lucrative markets or organizations. Most cybersecurity professionals earn lower salaries, but top-tier roles and consulting positions can reach or exceed this figure.
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Platform Security Engineer jobs near you
Infographic showing various Platform Security Engineer job openings in the United States as of June 2026, with employment types broken down into 90% Full Time, and 10% Contract. Highlights an 70% In-person, and 30% Remote job distribution, with an average salary of $152,773 per year, or $73.4 per hour.
Senior Cloud Platform Security Engineer

Senior Cloud Platform Security Engineer

CoStar Group

Arlington, VA

$131K - $180K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted yesterday

Job description

Senior Cloud Platform Security Engineer


Job Description


Overview

CoStar Group is a leading global provider of commercial and residential real estate information, analytics, and onlinemarketplaces.Includedin the S&P 500 Index, CoStar Group is on a mission to digitize the world's real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives.

We have been living and breathing the world of real estate information and online marketplaces for over 35 years, giving us the perspective to create truly unique and valuable offerings to ourcustomers.We'vecontinually refined, transformed and perfected our approach to our business, creating a language that has become standard in our industry, for our customers, and even our competitors.We continue that effort today and are always working to improve and driveinnovation.Thisis how we deliver for our customers, our employees, and investors.By equipping the brightest minds with the best resources available, we provide an invaluable edge in realestate.

CoStar builds and operates web applications related to real estate.Web applications include Apartments.com, Homes.com, Lands.com, CoStar.com, and 75 other webapplications.Thebackbone of our product security is our product platform security environment, which consists of commercial and custom developed security controls that run within the IDE, the CI/CD system, across cloud and Kubernetes platforms, and our product edge.Our product platform security engineering group builds and operates centralized controls using infrastructure as code, scripting, and API integrations to scale security across all web applications in a consistent manner.

This position is located in Arlington, VA or Richmond, VA and offers a schedule of Monday through Thursday in office and Friday work from home.

Responsibilities

Features (responsibilities and goals) of our product platform security suite:(AKA - what you will be building and evolving along a rockstar team that learns from and pushes each other to do great things!)

  • Cloud Security and Guardrails: Enforce security posture across AWS, GCP, and Azure through preventative controls (SCPs, organization policies, IAM guardrails) and detective controls (Wiz, native cloud security services). Build detection patterns and escalation paths in partnership with incident response. Drive validation methodology and operational rigor across acquisitions and new environments.
  • Kubernetes Platform Security: Lead workload protection strategy across EKS clusters, including runtime monitoring, admission control, network policy, and secrets management. Drive sensor coverage validation, incident response readiness, and security guardrails that scale across the portfolio.
  • AI and Agentic System Security: Partner with product engineering on securing AI-powered features, MCP server implementations, and agentic workflows across the portfolio. Lead threat modeling for new AI surfaces, build guardrails and detection patterns for prompt injection and unauthorized tool use, and shape security standards as the company expands AI capabilities into customer-facing products.
  • Security Automation: Integrate automated scanning tools into CI/CD pipelines, implement IaC solutions, and drive automated remediation processes.
  • Mentorship & Collaboration: Work closely with product dev teams to provide feedback on secure coding practices, proactively guide them on risk remediation.

Basic Qualifications

  • Bachelor's Degree required from an accredited, not for profit, in person, universityorcollege(preferablyinComputer Science, Cybersecurity or a related field).
  • A track record of commitment to prior employers.
  • 6+ years of hands-on security engineering experience, with depth in at least one and meaningful exposure to others among the following domains:
    • Securing cloud-native environments (AWS preferred).
    • Kubernetes platform hardening or monitoring.
    • CI/CD pipelines, containerized application deployments, and IAC, and software supply chain security.
  • Demonstrated track record of taking security initiatives from scoping through production rollout and operational ownership.
  • Demonstrated ability to author scripts or IAC from scratch in either Python, PowerShell, Ansible, CloudFormation, Terraform, or similar language.
  • Securing AI-powered applications, including threat modeling for LLM-based features, MCP server implementations, or agentic systems.
  • Experience working in a software development environment with a mature CI/CD.
  • Passion for solving complex challenges, innovating, and engaging in your work.

Preferred Qualifications and Skills

  • A self-starter who can advance the platform security program and follow-through ideas to completion.
  • Experience with tools and services like AWS GuardDuty, Security Hub, EKS, OPA/Gatekeeper, Falco, Wiz, Datadog, Prisma Cloud, Orca, Upwind, Snyk, or similar.
  • Familiarity with software supply chain security, including SBOM generation, dependency vulnerability management, build provenance, and artifact signing.
  • Knowledge of infrastructure operations across databases, network, and system administration.
  • Effective use of AI tools as a force multiplier for engineering work, with judgment about when AI accelerates work versus when it creates rework.
  • Ability to communicate with different levels of leadership conveying risk and driving urgency for risk remediation.
  • Familiarity with zero trust principles and cloud-native access controls (e.g. IAM roles, service meshes).
  • Ability to mentor and train team members to prioritize security efforts effectively.
  • Hands-on experience implementing security tools into CI/CD pipelines.
  • Experience testing serverless cloud deployments.

What's in it for You

When you join CoStar Group, you'll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed.

We offer you generous compensation and performance-based incentives. CoStar Group also invests in your professional and academic growth with internal training, and tuition reimbursement.

Our benefits package includes (but is not limited to):

  • Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug
  • Life, legal, and supplementary insurance
  • Virtual and in person mental health counseling services for individuals and family
  • Commuter and parking benefits
  • 401(K) retirement plan with matching contributions
  • Employee stock purchase plan
  • Paid time off
  • Tuition reimbursement
  • On-site fitness center and/or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes
  • Access to CoStar Group's Employee Resource Groups
  • Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks

We welcome all qualified candidates who are currently eligible to work full-time in the United States to apply.However, please note that CoStar Group is not able to provide visa sponsorship for this position.

#LI-KW1


CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing

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