Senior Application Security Tester

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Commvault (NASDAQ: CVLT) is the gold standard in cyber resilience. The company empowers customers to uncover, take action, and rapidly recover from cyberattacks – keeping data safe and businesses resilient. The company’s unique AI-powered platform combines best-in-class data protection, exceptional data security, advanced data intelligence, and lightning-fast recovery across any workload or cloud at the lowest TCO. For over 25 years, more than 100,000 organizations and a vast partner ecosystem have relied on Commvault to reduce risks, improve governance, and do more with data.

Senior Application Security Tester

We are seeking a highly skilled and experienced Senior Application Security Tester to join our security team. In this role, you will be responsible for conducting comprehensive security testing on both on-premises and cloud-based applications. You will evaluate the security posture of web, mobile, and API-based applications using automated tools and manual techniques, ensuring they are protected against the latest threats and vulnerabilities.

What you’ll do…

• Perform detailed application security testing (DAST, SAST, IAST) on internal and customer-facing applications.

• Lead threat modeling and security assessments across the SDLC for both on-premises and cloud-hosted environments.

• Utilize automated security testing tools (e.g., Burp Suite, OWASP ZAP, Fortify, Veracode, Checkmarx, Snyk, etc.) to identify security vulnerabilities.

• Manually validate and prioritize security issues identified by automated scans.

• Collaborate with DevOps, Engineering, and Cloud teams

• Provide remediation guidance to development teams and validate fixes.

• Conduct code reviews and perform secure code analysis, as necessary.

• Stay current on emerging threats, vulnerabilities, and industry trends in application security.

• Document findings clearly and concisely for both technical and non-technical audiences.

• Mentor junior security testers and contribute to overall security program improvements.

Who you are?

• Bachelor’s degree in computer science, Cybersecurity, Information Technology, or related field.

• 5+ years of experience in application security testing or offensive security.

• Deep understanding of OWASP Top 10, CWE/SANS Top 25, and other security best practices.

• Hands-on experience with testing applications hosted in AWS, Azure, or GCP environments.

• Familiarity with RESTful APIs, microservices architecture, and container security (Docker, Kubernetes).

• Experience in testing GenAI solutions.

• Strong command of scripting languages (e.g., Python, Bash, PowerShell) for custom testing and automation.

• Experience with security testing tools such as:

• Static analysis tools: Fortify, Checkmarx, Veracode

• Dynamic analysis tools: Burp Suite Pro, OWASP ZAP, AppSpider

• Software composition analysis (SCA): Snyk, Black Duck, White