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Posted May 13, 2026

Penetration Tester - Practitioner

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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. Apply tot his job Apply To this Job