BreachLock is a global leader in Offensive Security including Red Teaming, Continuous Attack Surface Discovery and Penetration Testing services. We help organizations discover, prioritize, and mitigate exposures with evidence-backed Attack Surface Management, Penetration Testing, and Red Teaming. BreachLock provides an attacker’s perspective that goes beyond standard vulnerabilities, enabling organizations to build a comprehensive, proactive defense strategy.
As a penetration tester on BreachLock’s US Strategic delivery team, you’ll execute manual, methodology-driven engagements across web applications, APIs, and internal networks — including assumed breach simulations — for enterprise clients. You’ll work directly with delivery leadership, contribute to internal tooling and quality systems, and help raise the bar for the team around you.
Key Responsibilities
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Execute web application, API and mobile penetration tests with a focus on manual testing beyond automated scanning — business logic, authentication abuse, authorization flaws, and injection chains
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Conduct internal network assessments, external network assessments and assumed breach engagements, including Active Directory enumeration, lateral movement, privilege escalation, and post-exploitation
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Leverage frameworks including MITRE ATT&CK, PTES, and OWASP to structure assessments and findings
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Develop and contribute to internal tooling — automation scripts, reporting utilities, and workflow improvements using Python, Bash, or similar
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Participate in QA review cycles, providing structured feedback on findings, CVSS scoring accuracy, and report quality
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Mentor junior testers through technical guidance and finding review
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Collaborate with delivery leadership on scoping, client kickoff calls, and remediation guidance
Requirements
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3–5 years of professional penetration testing experience in a delivery or consulting context
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Strong web application and API testing fundamentals — Burp Suite proficiency, OWASP Top 10 and beyond, authentication and session management testing