Senior Penetration Tester (Mobile, API, Cloud)

U.S. Bank • Irving, TX

1d • Hybrid

About The Position

The Senior Penetration Tester will lead advanced offensive security assessments across mobile applications, APIs, web platforms, cloud environments, and emerging AI-enabled technologies. This role is responsible for identifying security weaknesses, validating business impact through controlled exploitation, and partnering with engineering teams to strengthen security posture across the enterprise. Experience with mobile security, API testing, cloud security, threat modeling, and regulatory compliance is critical. Relevant internal learning pathways emphasize cloud penetration testing, API security, mobile security frameworks, and offensive security tooling.

Requirements

• Bachelor’s degree in Engineering or Science, or equivalent work experience.
• Eight or more years of experience in information security.
• Two or more years of experience in: IT infrastructure management, Application architecture, Risk management, Data architecture, Middleware technology, IT operations and project management.
• 8+ years of Information Security experience with demonstrated expertise in offensive security and penetration testing.
• 5+ years of hands-on mobile application security testing for Android and iOS platforms.
• Strong knowledge of OWASP Top 10, API Security Top 10, SANS Top 25, OWASP MASVS, and MASTG frameworks.
• Advanced experience conducting manual penetration testing, exploit chaining, business logic testing, and access control assessments.
• Expert proficiency with Burp Suite Pro, Postman, Insomnia, Nmap, Metasploit, Kali Linux, and related security testing tools.
• Experience assessing security within AWS, Azure, Kubernetes, containers, and cloud-native security platforms.
• Strong scripting and automation skills using Python, PowerShell, Bash, Ruby, or Go.
• Deep understanding of HTTP/S, REST APIs, OAuth, SAML, JWT, TCP/IP, DNS, firewalls, IDS/IPS, and application architecture.
• Knowledge of AI and Machine Learning security risks, including prompt injection, insecure model access, API abuse, and data leakage concerns.
• Familiarity with PCI-DSS, HIPAA, NIST 800-53, ISO 27001, FedRAMP, and other security compliance frameworks.
• Excellent communication skills with the ability to present findings to technical teams, business stakeholders, and executive leadership.

Responsibilities

• Lead penetration testing engagements across mobile applications, APIs, web applications, cloud platforms, and supporting infrastructure.
• Perform manual security testing and exploitation to identify vulnerabilities, validate risk, and demonstrate business impact.
• Assess applications against industry standards including OWASP Top 10, OWASP API Security Top 10, OWASP MASVS, and MASTG.
• Evaluate security controls within AWS, Azure, containerized environments, and Kubernetes platforms.
• Conduct threat modeling and risk assessments to prioritize testing activities and remediation efforts.
• Develop detailed security reports including vulnerability analysis, risk ratings, attack paths, and remediation recommendations.
• Create and enhance security testing tools, scripts, and automation to improve operational effectiveness and assessment coverage.
• Mentor junior testers, support knowledge-sharing initiatives, and collaborate with stakeholders to strengthen enterprise security practices.

Benefits

• Healthcare (medical, dental, vision)
• Basic term and optional term life insurance
• Short-term and long-term disability
• Pregnancy disability and parental leave
• 401(k) and employer-funded retirement plan
• Paid vacation (from two to five weeks depending on salary grade and tenure)
• Up to 11 paid holiday opportunities
• Adoption assistance
• Sick and Safe Leave accruals of one hour for every 30 worked, up to 80 hours per calendar year unless otherwise provided by law

What This Job Offers

• Job Type: Full-time
• Career Level: Senior