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Leading Utilities Organization

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Application Penetration Tester

Leading Utilities Organization

Columbus, OH • On-site

Other

Posted 4 days ago

Job description

Application Penetration Tester

This role focuses on identifying, validating, and exploiting security vulnerabilities through hands-on, manual penetration testing across a broad range of application technologies.

This position will conduct application penetration testing on browser-based/web applications, APIs, and mobile applications (mainframe and thick client experience a plus) using primarily manual techniques supplemented by automated tools, including authentication/authorization testing and business-logic abuse cases.

Perform deep defect analysis by reproducing, validating, and safely demonstrating security impact, including chained attack paths where applicable, while triaging and dispositioning false positives from automated tooling.

Configure and tune automated application security testing tools to improve coverage, accelerate discovery, and complement manual testing efforts.

Produce clear, reproducible technical reports with detailed evidence including steps to reproduce, impacted components/endpoints, risk/impact assessment, and practical remediation guidance.

Collaborate with application development and security teams to ensure shared understanding of defects, support prioritization, and drive timely remediation through defect walkthroughs and follow-up activities.

Support continuous improvement of penetration testing methodologies and processes by leveraging industry standards and best practices.

Collaborate with team members to share knowledge, complete peer reviews of reports, and strengthen overall testing capabilities.

Communicate findings and risks clearly to technical and non-technical stakeholders, supporting readouts, status updates, and remediation Q&A sessions.

Required Qualifications:

  • 2+ years of hands-on application penetration testing experience with a strong emphasis on manual testing, beyond reviewing or validating automated scanner results
  • 2+ years of Dynamic Application Security Testing (DAST) experience, including tool configuration/tuning and manual verification of findings
  • 2+ years of Cybersecurity experience, or equivalent demonstrated through one or a combination of work experience, training, military experience, or education
  • Experience conducting penetration testing on browser-based/web applications and APIs required; experience with mobile, mainframe, or thick client applications a plus
  • Proficiency with application security testing tools such as Burp Suite, Invicti, WebInspect, and Fiddler a plus
  • Strong knowledge of common application security vulnerabilities and the OWASP Top 10
  • Experience with scripting and automation (e.g., Python, Shell) a plus
  • Knowledge of security best practices and compliance standards such as PCI DSS and GDPR preferred
  • Demonstrated understanding of security risks in AI/ML-enabled applications (e.g., prompt injection, sensitive data exposure, insecure integrations) a plus
  • Security certifications such as OSCP, BSCP, GWAPT, GPEN, GXPN or equivalent a plus
  • Excellent written and verbal communication skills with the ability to convey technical findings clearly to diverse audiences
  • Strong problem-solving and analytical skills
  • Proven ability to work effectively in a team-oriented, collaborative environment and partner with cross-functional teams
  • Ability to prioritize tasks and deliver high-quality results in a dynamic, fast-paced environment
  • Highly self-motivated and directed with strong organizational skills and keen attention to detail
  • Strong customer service orientation focused on delivering actionable insights and supporting timely remediation
  • This position offers a hybrid work schedule with consistent Monday–Friday hours (flexible as long as schedule remains consistent)

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