Python (with requests + asyncio) – For scripting simulated traffic, API testing, and automation tasks. Performance & Load Testing Tools – Experience with JMeter or Locust to simulate high ad request volumes. Ad Tech Standards (SSAI & VAST) – Understanding of Server-Side Ad Insertion and VAST XML formats for validating ad delivery. Monitoring & Logging Systems – Familiarity with Prometheus + Grafana (real-time metrics) and ElasticSearch + Kibana (log analysis). API Testing & Data Validation – Using tools like Postman, Swagger UI, and ensuring data consistency across systems (e.g., impressions → redemptions).