Senior Penetration Tester

Fiserv

Senior Penetration Tester conducting thorough penetration testing across various application types. Leading security assessments and mentoring team members for Fiserv's technology solutions.

Posted 4/29/2026full-timeBerkeley Heights • New Jersey, New York, Ohio, Texas, Wisconsin • 🇺🇸 United StatesSenior💰 $90,000 - $158,400 per yearWebsite

Tech Stack

Tools & technologies

AndroidAWSAzureCloudDockerGoogle Cloud PlatformiOSJenkinsKubernetesPythonSDLCTerraform

About the role

Key responsibilities & impact

Perform thorough penetration testing across web applications, RESTful APIs, mobile applications (iOS/Android), and thick clients using manual and automated techniques to identify and exploit vulnerabilities.
Develop and implement advanced penetration testing strategies, frameworks, and test plans tailored to different application architectures.
Lead security assessments, execute exploit development and proof-of-concept creation, and validate remediation effectiveness.
Provide technical guidance on remediation, secure coding practices, and risk mitigation to development and product teams.
Monitor and respond to application security incidents; conduct root-cause analysis and drive corrective actions.
Research and apply emerging tools, techniques, and threat intelligence to continuously improve testing coverage and automation.
Mentor and support team members, promoting a culture of application security engineering and secure SDLC integration.

Requirements

What you’ll need

10+ years of experience in application penetration testing for web applications, RESTful APIs, mobile applications, and thick clients using manual exploitation and advanced assessment techniques.
10+ years of experience in vulnerability research, exploit development, binary analysis, and proof-of-concept development.
8+ years of experience in cloud and container security assessments (AWS, Azure, GCP, Docker, Kubernetes) for cloud-native applications.
8+ years of experience with secure SDLC practices, threat modeling, and application security standards (OWASP Top 10, NIST, SANS) and compliance frameworks (e.g., PCI DSS).
8+ years of experience integrating security into CI/CD and IaC pipelines, and testing automation (Jenkins, GitHub Actions, Terraform).
6+ years of experience with scripting and automation (Python, Bash), and hands-on use of tools such as Burp Suite, Metasploit, MobSF, Postman, and fuzzing frameworks.
6+ years of equivalent combination of educational background, related experience, and/or military experience.

Benefits

Comp & perks

Fuel Your Life program to support physical, financial, social, and emotional well-being.
Paid holidays and generous time away policies.
No-cost mental health support through Employee Assistance Programs.
Living Proof program to recognize your peers’ extra effort with points used for rewards.
Eight Employee Resource Groups to foster a collaborative culture.
Unparalleled professional growth with training, development, and internal mobility opportunities.
Retirement planning and discounted shares with the Employee Stock Purchase Plan.
Medical, dental, vision, life, and disability insurance options available day one.
Tuition assistance and reimbursement program.
Paid parental, caregiver, and military leave.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

penetration testingvulnerability researchexploit developmentbinary analysissecure SDLC practicesthreat modelingapplication security standardstesting automationscriptingcloud security assessments

Soft Skills

technical guidancementoringleadershipcommunicationrisk mitigationproblem-solvingcollaborationroot-cause analysisculture promotionsupport