David A.

I’m an IT & Security Operations professional with 18+ years of experience supporting, troubleshooting, and securing complex enterprise environments, with recent hands-on work in Security Operations and compliance-driven settings. My background combines senior desktop and systems support with modern security operations. I’ve spent years diagnosing difficult, non-obvious problems across Windows, Linux, and macOS environments, managing identity and access (AD / Azure AD), group policy, endpoint configuration, and user lifecycle processes at scale. That foundation gives me a strong, practical understanding of how real environments behave — not just how they’re supposed to look on paper. On the security side, I’ve worked with incident response, vulnerability management, and Microsoft’s security ecosystem, including Azure, Microsoft 365, Defender (XDR/EDR), and Sentinel (SIEM). I focus on careful analysis, attention to detail, and understanding cause-and-effect, whether I’m investigating an alert, tightening access controls, or reviewing data flows between systems. I’ve operated in regulated, large-scale environments where clear documentation, repeatable processes, and evidence matter. This makes me well-suited to compliance and readiness work, including evidence collection, policy and control alignment, access reviews, and security tooling configuration. I’m comfortable owning platforms such as Vanta and clearing dashboards by fixing underlying issues rather than treating compliance as a box-ticking exercise. I work well in remote, fast-moving teams and don’t require close supervision. I’m methodical, observant, and reliable. If I don’t know something on day one, I’ll research it, test it, and deliver a practical solution quickly. Credentials: -MSc Cybersecurity (Distinction) -CompTIA Security+ -18+ years enterprise IT & systems support experience -Strong Microsoft cloud and security stack knowledge If you’re looking for someone who can both understand the environment and secure it properly, without drama or hand-holding, I’d be happy to talk.