About the role

What will you do at CoStar?

Edge Security Engineer

Job Description

Overview

CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, 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 our customers. We’ve continually 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 drive innovation.

This is 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 real estate.

We are seeking a skilled Edge Security Engineer to join our Product Security team. This role focuses on maintaining and optimizing edge security controls across CoStar’s public-facing websites. You will be responsible for managing Akamai Kona WAF configurations, bot mitigation strategies, scraping protections, and other perimeter defenses to ensure high availability and secure access to our platforms.

This position is located in Arlington, VA and is in office Monday through Thursday and work from home on Friday.

Responsibilities

Configure, monitor, and fine-tune Akamai Kona WAF policies to minimize false positives and maximize protection against OWASP and DDOS threats
Implement and maintain bot protection and scraping mitigation strategies across CoStar’s web properties.
Analyze edge traffic patterns to detect anomalies and respond to security incidents.
Support secure deployment and scaling of edge security controls across cloud and CDN environments.
Provide edge security across 50+ high traffic websites, spanning distinct web tech stacks and threat profiles.
Basic Qualifications
Bachelor’s Degree required from an accredited, not for profit, in person university or college.
A track record of commitment to prior employers
1–3 years of experience in edge security, web application security, or managing Akamai, Cloudflare, Imperva, DataDome, Fastly, AWS WAF or similar technologies for a major Internet site.
Familiarity with OWASP Top 10, API security best practices, and traffic analysis.
Ability to collaborate across Product, Security, DevOps, Legal, and development teams.
Experience with dashboards and log analysis tools such as Akamai WSA, ELK, or Athena.

Preferred Qualifications

and Skills
Hands-on experience with Akamai Control Center for WAF rule configuration and monitoring.
Knowledge of advanced bot detection strategies including behavioral analysis and AI-based solutions.
Scripting and Infrastructure as code proficiency (Python, Terraform, Ansible, etc) for automation and reporting.
Understanding of SDLC, CI/CD, and cloud-native development (Docker, EC2, EKS, RDS).
Familiarity with compliance frameworks (NIST, ISO 27001, PCI DSS).
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 Diversity, Equity, & Inclusion 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-AR
CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing

Which skills does this role require?

Edge SecurityWeb Application SecurityCloudflareImpervaDataDomeFastlyAWS WAFOWASPAPI SecurityTraffic AnalysisCollaborationLog AnalysisBot ProtectionScraping MitigationAWS

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