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Penetration Tester - Practitioner

Remote, USA Full-time Posted 2026-06-06

Description:

  • Perform network-based penetration testing on public-facing infrastructure to identify, assess, and report vulnerabilities.
  • Conduct penetration testing on internal and external web applications and APIs to identify and report security weaknesses.
  • Execute red team exercises to uncover weaknesses in client infrastructure and recommend remediation.
  • Write clear, concise deliverable reports that explain client risk posture and ways to reduce it.
  • Advise clients on security best practices for application design, infrastructure architecture, and related considerations.
  • Collaborate with other Crosslake practitioners to share and promote penetration testing best practices.
  • Work with private equity firms and other investment firms to assess technology risks across their environments or portfolios.
  • Partner with internal and client technical leads to plan, execute, and complete penetration testing engagements on time.
  • Take ownership of engagements after an initial apprenticeship period and drive projects to successful completion.

Requirements:

  • Be willing to start as an apprentice tester for the first 2 projects before leading work independently.
  • Deliver at least one network, API, or web application penetration test every week.
  • Experience producing reports that outline technical vulnerabilities and risk for investors or clients.
  • Ability to work collaboratively with internal and client technical leads and team members.
  • Ability to plan and execute penetration testing efforts in a timely fashion.
  • Strong communication skills for creating high-quality client-facing reports.
  • Experience working with private equity companies or other investment firms is preferred.
  • US-based remote work from Central US is required.

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