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marksowell - Overview

Mark Sowell

Hi! I'm Mark

I am an experienced penetration tester and application security leader specializing in offensive security, security consulting, presales, and application security strategy across the following areas:

  • Web applications
  • Mobile applications (Android & iOS)
  • Desktop applications
  • APIs, SDKs, and Web Services
  • Cloud and SaaS platforms
  • Microservices and containerized applications
  • Serverless and distributed applications
  • AI-enabled platforms, integrations, and emerging technologies

Over the years, I have led application security initiatives, offensive security programs, and large-scale security assessments to strengthen security posture and reduce organizational risk.

Experience:

  • Strategic Leadership: Defining methodologies, creating tooling and workflows, and establishing best practices across offensive security and application security programs.
  • Security Consulting & Advisory: Principal-level application security leader and trusted advisor across web, mobile, cloud, API, AI, and enterprise security initiatives.
  • Presales & Customer Engagement: Supporting engagements from discovery and scoping through technical strategy, executive communication, delivery, and long-term customer success.
  • Team Leadership & Mentorship: Leading and mentoring penetration testers and security consultants through hiring, onboarding, escalations, technical enablement, and quality assurance across distributed teams.
  • Application & Platform Security: Assessing APIs, OAuth integrations, SaaS platforms, cloud-native applications, AI-enabled workflows, and distributed architectures.
  • AI & Emerging Technologies: Evaluating AI-enabled applications and integrations while helping organizations understand emerging attack surfaces and security risks.
  • Comprehensive Security Assessments: Leading external, internal, application, cloud, red team, and physical security assessments including attack path analysis, remediation guidance, and executive reporting.
  • Cross-Functional Collaboration: Partnering with engineering, product, architecture, operations, and security teams to improve remediation efforts and secure development practices across complex environments.

I focus on combining deep technical expertise with leadership to help organizations build scalable and effective security programs.

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Connect with me

marksowell.com    Mark Sowell | LinkedIn    Mark Sowell | X    Mark Sowell | GitHub    Mark Sowell | Slack    Mark Sowell | Discord    Mark Sowell | YouTube    Mark Sowell | Telegram    Mark Sowell | Medium

Research platforms

Mark Sowell | TryHackMe    Mark Sowell | Hack The Box    Mark Sowell | HackerOne    Mark Sowell | Bugcrowd   

Certifications

Mark Sowell | Accredible    Mark Sowell | Credly    Mark Sowell | EC-Council   

Bookshelf

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