Triaged, reproduced, and resolved technical issues for internal stakeholders and partner teams, documenting troubleshooting steps, status updates, and escalation context. Investigated production issues through debugging, log analysis, and RCA, partnering with engineering teams to identify root causes and ship durable fixes. Supported technical workflows for account verification and notifications, helping diagnose user-facing issues, rollout behavior, and recurring support paterns. Created troubleshooting documentation and runbooks for recurring issues, helping technical users resolve problems faster and maintain consistent support processes. Led E2E/integration testing and CI gating for a mission-critical workflow, increasing coverage from 45% to 80% and reducing recurring incidents from ~2–3/week to ~1/week.