The situation
A FIX connectivity issue caused order rejections and OMS routing failures, impacting trade execution across UAE markets. The incident affected live order flow and required immediate investigation and vendor coordination to restore service.
What I did
Investigated Kibana and OMS logs, correlated affected orders and timestamps, validated application and database behaviour, and provided the vendor with evidence for deeper FIX-session analysis. Coordinated the incident across engineering, vendor and business stakeholders, tracked recovery through Grafana, and validated impacted orders after service restoration.