U.S. Bank

Penetration Tester (Mobile, API & Application Security)

U.S. Bank • $105K — $124K *
Irving, TX 75061In-Person
Information Technology
Less than 5 years of experience
Reposted Today
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Job Overview by Ladders

Qualifications

  • College degree or equivalent industry certifications
  • 3-5 years of relevant cybersecurity experience
  • Familiarity with network and endpoint intrusion detection tools
  • Experience with standard operating procedures for security monitoring
  • Ability to work independently with minimal oversight

Responsibilities

  • Monitor and analyze security alerts in real-time
  • Perform operational triage on detected threats
  • Engage with IT teams to resolve cybersecurity incidents
  • Participate in developing security processes and procedures
  • Document and report on security event findings

Benefits

  • Comprehensive healthcare options (medical, dental, vision)
  • Life insurance options and disability coverage
  • Generous paid vacation policy that increases with tenure
  • Parental and pregnancy leave benefits
  • 401(k) with employer contributions and retirement planning
  • Paid holidays and additional sick/safe leave
  • Adoption assistance programs
Full Job Description
Job Description

We are seeking a Penetration Tester (Mobile, API, and Application Security) to support the effectiveness of our enterprise information security program. In this role, you will perform penetration testing and security assessments of mobile, API, web, and AI-enabled applications to identify vulnerabilities, validate risk, and support remediation efforts that enhance the organization's security posture.

Responsibilities
  • Perform penetration testing of mobile (Android and iOS), API, and web applications using manual and tool-assisted techniques.
  • Identify security vulnerabilities and, where appropriate, demonstrate impact through controlled exploitation.
  • Document findings clearly, including risk ratings and remediation recommendations, for technical and non-technical stakeholders.
  • Apply established testing methodologies, standards, and playbooks while continuing to build practical exploitation skills.
  • Research and apply knowledge of emerging threats, tools, and techniques, including AI and application security risks, during assessments where applicable.
  • Participate in security assessments of AI-enabled applications and services, including systems incorporating machine learning models, APIs, or large language models (LLMs).
  • Contribute to team initiatives such as process improvements, internal documentation, tool usage, and knowledge sharing.
  • Collaborate with peers and stakeholders during engagements and remediation discussions.

Basic Qualifications
  • Bachelor's degree in Engineering or Science, or equivalent work experience.
  • Five or more years of experience in information security.
  • Two or more years of experience in one or more of the following:
    • IT infrastructure management
    • Application architecture
    • Risk management
    • Data architecture
    • Middleware technology
    • IT operations or project management

Required Skills / Experience

Mobile Application Security
  • 3+ years of hands-on experience testing Android and/or iOS applications.
  • Working knowledge of mobile platform security risks and common weaknesses.
  • Familiarity with OWASP MASVS and MASTG.

Web & API Penetration Testing
  • Practical understanding of the OWASP Top 10 and OWASP API Security Top 10.
  • Experience identifying authentication, authorization, input validation, and business logic vulnerabilities.

Manual Testing & Tool Usage
  • Proficiency with Burp Suite (Community or Pro), Postman, or Insomnia.
  • Ability to perform manual testing beyond automated scanner output.

Cloud & Platform Familiarity
  • Exposure to AWS and/or Azure environments.
  • Basic familiarity with cloud-hosted or containerized application architectures.

Technical Foundations
  • Working knowledge of HTTP/S, authentication and authorization (OAuth, JWT), and general networking concepts.
  • Experience or familiarity with Python, Bash, or PowerShell scripting is preferred.

AI & Emerging Technology Security
  • Familiarity with AI and machine learning security concepts.
  • Awareness of common AI-related risks, including prompt injection, insecure model or API access, and data leakage.
  • Understanding of how AI security risks intersect with traditional application and API testing.

Tooling & Testing Environment
  • Exposure to tools such as Nmap, Metasploit, and Kali Linux.
  • Interest in contributing to light automation or scripting to improve testing efficiency.

Communication & Documentation
  • Ability to produce clear, well-structured written findings and remediation guidance.
  • Comfortable discussing security findings with engineers, application owners, and security partners.

Preferred Skills / Experience
  • Mobile reverse-engineering fundamentals (e.g., JADX, Frida).
  • Source code review familiarity.
  • Experience with vulnerability management or tracking tools (e.g., ServiceNow).
  • Understanding of secure development and change management concepts.
  • Hands-on experimentation with AI or LLM-based applications in testing, research, or academic contexts.
  • Familiarity with AI security testing, red-teaming tools, or proof-of-concept exercises.
  • Understanding of ethical and responsible AI security testing principles.

Certifications (Preferred, Not Required)
  • GMOB, GWAPT, OSCP, GPEN, or equivalent practical security certifications.

This role requires working from a U.S. Bank location three (3) or more days per week.

Benefits:

Our approach to benefits and total rewards considers our team members' whole selves and what may be needed to thrive in and outside work. That's why our benefits are designed to help you and your family boost your health, protect your financial security and give you peace of mind. Our benefits include the following:
  • 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


Review our full benefits available by employment status here.

Posting may be closed earlier due to high volume of applicants.

About U.S. Bank

U.S. Department of the Treasury is a government agency responsible for promoting economic prosperity and ensuring financial security. The department is responsible for a wide range of activities such as advising on economic and financial issues, encouraging sustainable economic growth, and fostering improved governance in financial institutions.

U.S. Bank Careers

Join the dynamic team at U.S. Bank, one of the nation's top banking institutions, where your career journey is as promising as the services we provide to our customers. At U.S. Bank, we are committed to fostering a culture of innovation, leadership, and diversity that is unmatched in the industry.

Explore Job Opportunities and Growth

At U.S. Bank, we offer a variety of job opportunities that cater to a range of skills and professional interests. Whether you are looking for a position in finance, technology, customer service, or management, U.S. Bank is hiring talented individuals who are eager to contribute to our mission and grow with us.

Internship Programs

Kickstart your career with U.S. Bank’s internship programs. These opportunities are designed for ambitious students who want to gain hands-on experience and develop essential skills in a real-world setting. Our internships provide a platform to engage with experienced professionals and explore potential career paths within the company.

Benefits and Employment Perks

Choosing a career at U.S. Bank means more than just employment. We offer comprehensive benefits designed to enhance your life and well-being. From health and wellness programs to retirement plans, we ensure our team members are supported both personally and professionally.

Our Commitment to Diversity and Inclusion

Diversity and inclusion are at the core of our values at U.S. Bank. We are dedicated to creating an environment where all employees feel valued and included. Our diversity training programs are part of our commitment to an inclusive workplace, where everyone can thrive.

Leadership and Professional Development

Leadership at U.S. Bank is about more than guiding teams – it's about inspiring them. We invest in leadership training and professional development programs that help our employees become the best in their fields. By fostering a culture of learning and growth, we prepare our team members to take on new challenges and leadership roles.

Networking and Innovation

Networking at U.S. Bank goes hand in hand with innovation. Our employees are encouraged to connect with colleagues and industry leaders through various networking events and professional groups. This collaborative environment fuels innovation and allows us to stay ahead in a competitive industry.

Join Our Team

Are you ready to take the next step in your career? Explore the open positions at U.S. Bank and find where your skills and passions align with our needs. Prepare your resume, sharpen your interview skills, and get ready to join a team where your career can flourish.

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Stay ahead in your career with U.S. Bank – where your growth is our priority.
Learn more about U.S. Bank
Size
68,796 employees
Market Cap
$66.2 billion
Industry
Finance & Insurance
Net Income
$4.9 billion
5 Year Trend
+0.5%
NASDAQ
USB
* Ladders Estimates

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