Describe how you would investigate a high-severity API Gateway incident affecting a production customer.I would first establish impact, scope, timeline, and recent changes while ensuring clear ownership and stakeholder communication. I would collect gateway logs, metrics, traces, configuration and network evidence; isolate whether the cause is routing, authentication, upstream services, infrastructure, or a product defect; and validate mitigations safely. After recovery, I would document the root cause, corrective actions, and prevention items in a customer-appropriate RCA.
How have you handled an OAuth or OpenID Connect authentication failure in a distributed environment?I validate the full authorization flow, including issuer configuration, redirect URIs, token claims, scopes, audience, signing keys, clock skew, and gateway policy configuration. I use sanitized request and gateway logs to identify the failing step, reproduce the behavior in a controlled environment when possible, and explain both the immediate fix and the durable configuration or product improvement.
How do you balance a daily support queue with strategic cross-functional projects?I prioritize by customer impact, severity, contractual commitments, and risk to production while making progress visible through clear status updates. I reserve focused time for strategic work, define measurable milestones, and automate or document recurring support patterns so that project outcomes reduce future queue volume.
Give an example of communicating a complex incident to executive stakeholders.I provide a concise summary of business impact, current status, mitigation, known facts, unknowns, owners, and the next update time. I avoid unverified technical detail, tailor depth to the audience, and follow up with a structured RCA that covers root cause, corrective actions, and prevention commitments.
What is your approach to mentoring support engineers during complex escalations?I involve engineers in the investigation, explain the diagnostic reasoning and tradeoffs, and assign meaningful portions of the analysis with appropriate guardrails. Afterward, I review the incident together, identify reusable troubleshooting patterns, and turn lessons into runbooks or knowledge articles.
