Job Description

Web Application Penetration Tester (Product Security) 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. In this role, you will secure software and applications that power the worldwide real estate market. Work with 1,000+ software, QA, and operations engineers to secure applications during design, development, and production. The candidate will utilize threat modeling, white box application security analysis, and grey box penetration testing. This position will collaborate with software development teams, DevOps, and security to drive and shape the way our employees and engineers build, deploy, and operate applications. This position is located in Washington, DC or Richmond, VA and offers a hybrid schedule of 3 days onsite, 2 days remote Responsibilities Work with the software and product teams to help ensure applications are designed and implemented securely during the SDLC Develop a repeatable framework to scale application security controls across 100+ applications Consume a variety of application security tools (DAST, SAST, SCA, Credential Scanning, IAC scanning) to secure web applications during development and production run-time. Penetration test web applications and underlying infrastructure for vulnerabilities using both manual and automated techniques Demonstrate risk of detected issues to both technical and non-technical audiences Utilize sustainable methods to automate finding feedback to generate developer work items and trigger re-scan when associated work items are closed. Recommend code changes to eliminatevulnerabilities Automate security testing at various stages within the CI/CD pipeline Develop secure coding standards and training across multiple application frameworks and technologies Basic Qualifications Bachelor’s Degree required from an accredited, not for profit university or college (preferably in Computer Science/Cybersecurity) A track record of commitment to prior employers Minimum 6 years total experience in a technical role such as software engineer or security engineer Relevant experience areas (experience required in at least 3): Design, implementation, and operation of a secure software development lifecycle Experience with web application penetration testing and common attack vectors Experience with secure application development Experience with defense-in-depth strategies to help mitigate existing risk within applications Software development experience in a common programming language: C# (preferred), Java, C/C++, Python, or Go Scripting/programming skills - Python, PowerShell, GoLang, Perl, JavaScript, .NET, API Integration Security tooling automation in CI/CD pipelines and IDE interfaces including Static Application Security Testing (SAST) and Static Application Analysis (SCA) solutions such as Veracode, CheckMarx, AppScan, X-Ray, Synopsys, or Snyk Dynamic application security testing (DAST) through Metasploit, Burpsuite, OWASP ZAP, Acunetix, etc. Industry relevant professional certifications:

ISC-2 CISSP

Offensive Security Web Assessor (OSWA) / Expert (OSWE) Offensive Security Certified Profession (OSCP / OSCE) SANS GIAC Penetration Tester (GPEN) SANS GIAC Cloud Penetration Tester (GCPN) SANS GIAC Exploit Researcher and Advanced Penetration Tester (GXPN) Preferred Qualifications and Skills In-depth understanding of various assessment tools Knowledge of infrastructure operations across databases, network, and system administration Ability to communicate with different levels of leadership conveying risk and driving urgency for risk remediation. Experience coordinating with application teams to drive security by design principles Ability to mentor and train team members to prioritize security efforts effectively A self-starter who can advance the application security program and follow-through ideas to completion. 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, tuition reimbursement, and an inter-office exchange program. 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

#LI-Hybrid CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing 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 37 years, giving us the perspective to create truly unique and valuable products and services. We’ve continually refined, transformed and perfected our approach to our business, creating a language that has become standard in our industry and for our customers. 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. CoStar is committed to creating a diverse environment and is proud to be an equal opportunity workplace and affirmative action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. CoStar is also committed to compliance with all fair employment practices regarding citizenship and immigration status. If you are a qualified individual with a disability or a disabled veteran, you may request a reasonable accommodation if you are unable or limited in your ability to use or access as a result of your disability. You can request reasonable accommodations by calling 1-855-840-1715 or by sending an email to recruiting@costargroup.com .

Job Tags

Full time, Remote job, Worldwide,

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