Aaron Lesmeister

About Aaron Lesmeister

I am an Offensive Security professional with an extensive background in red team…

Experience

1. Principal Consultant - Offensive Security Team Lead

   HALOCK Security Labs

   Mar 2021 — Present

   I conduct comprehensive offensive security assessments across a wide range of attack surfaces, identifying vulnerabilities before they can be exploited by real-world adversaries. With a strong focus on threat-driven security testing, my expertise spans red team engagements, network/wireless/web app penetration tests, and IoT penetration tests.Core Responsibilities: • Conduct manual penetration tests across cloud, internal, external, and wireless environments. • Execute web application security assessments and IoT penetration tests. • Conduct red team engagements, including spear phishing, physical intrusion, and assumed breach scenarios. • Contribute to and maintain custom penetration testing tools, exploits, and attack frameworks. • Deliver technical reports outlining security findings, risk impact, and remediation strategies. • Develop, document, and refine internal testing methodologies, procedures, and reporting standards. • Design, configure, and manage lab environments to support offensive security operations. • Perform quality assurance (QA) on pentest reports and findings to ensure accuracy and clarity. • Participate in client report deliveries and executive readouts, translating technical findings into actionable risk insights. • Train and mentor new team members, fostering a culture of technical excellence and continuous learning. • Engage with clients at both high-level strategic discussions and deep technical dives to address security concerns. • Provide content for company blog posts.Core Skills & Competencies: • Penetration Testing & Vulnerability Exploitation • Adversary Simulation & Red Team Operations • Social Engineering & Physical Security Assessments • Exploit Development & Tooling • Security Methodology Development & Documentation • Technical Writing & Executive Reporting • Mentorship & Team Leadership