Ronald Buchanan

Background

About Ronald Buchanan

Senior Technical Escalation Engineer at Microsoft specializing in Azure API Management with deep experience in API security, identity and access control, and cloud incident response.I work at the intersection of cloud platform engineering and security, helping enterprise and regulated customers resolve production‑impacting issues related to authentication and authorization (OAuth2, JWT), TLS certificate lifecycle, network isolation, and API gateway security controls. My role regularly involves investigating security‑relevant behaviors, validating enforcement of controls, and partnering directly with product engineering teams to identify root causes and drive long‑term fixes.I have led and contributed to high‑severity incidents affecting secure API traffic, performed detailed root cause analysis, and helped customers restore and harden their security posture across Azure environments. My work requires a strong understanding of trust boundaries, control misconfigurations, and runtime behavior of cloud security mechanisms.I’m particularly interested in roles focused on cloud security engineering, product security, and detection & incident response, where deep platform knowledge and real‑world incident experience are critical.