Tanaaz Sharmin

AdTech professional with 4+ years of experience supporting large-scale advertising and eCommerce platforms. Experienced in advertiser onboarding, campaign management, Sponsored Products, Display Advertising, SEM, Ad serving, Ad rendering, attribution, reporting, billing operations, and customer-facing technical support.

AdTech Application Support Engineer - Cognizant - Hyderabad, India

(2023-01)

• Maintained 99.9%+ SLA compliance across business-critical Walmart Ads services by proactively monitoring campaign delivery systems, advertiser workflows, reporting pipelines, and production applications.
• Reduced Mean Time to Resolution (MTTR) by 30% by leading end-to-end incident investigations, coordinating cross-functional resolution efforts, and driving technical troubleshooting across Engineering, Product, QA, and Data teams.
• Reduced recurring advertising impacting incidents by 25% through detailed Root Cause Analysis (RCA), preventive action implementation, and platform reliability improvements.
• Improved campaign visibility and advertiser success by analyzing key advertising KPIs
• Reduced customer impact by identifying root causes across frontend, backend, API, reporting, campaign-processing, and data service layers
• Improved platform reliability by partnering with Engineering teams to reproduce defects, validate bug fixes, support feature enhancements, and drive continuous product improvements.
• Improved reporting accuracy by proactively monitoring reporting jobs, attribution workflows, campaign-processing pipelines, production alerts, and advertiser reporting systems.

SRE Support Engineer - Cognizant - Hyderabad, India

(2021-12 - 2022-12)

• Reduced recurring production incidents by 35% through detailed RCA initiatives, preventive measures, and reliability engineering practices.
• Maintained 99.95% service availability across high-traffic eCommerce applications through proactive monitoring, incident response, and operational excellence.
• Performed proactive monitoring and alert analysis using Kibana watchers and Dynatrace dashboards
• Supported AEM release rollouts, and post-release production validation using AEM Proxy URL's.
• Worked on AEM Production related issue on validating AEM content, content replication, clearing caches.
• Collaborate with Platform Engg Team for activities such as providing inputs for OS patching, JDK upgrade and other software configuration
• Driving system reliability by leading Root Cause Analysis (RCA), automating preventive measures, and developing comprehensive runbooks that streamline operational readiness and minimize incident recurrence.
• Managed end-to-end SSL/TLS certificate lifecycles using Venafi and maintained a comprehensive library of runbooks and post-incident reports (RCAs).

Bachelor of Engineering - Electronics & Communication - PDA college of Engineering (2017 - 2021)