Lead Security Engineer
Payatu — Gurugram, HR
May 2025 – Present
Microsoft SentinelDefenderIntunePurviewWazuhAzurePythonKQLOTXVirusTotal
- ›Built end-to-end threat intelligence automation aggregating 50+ RSS sources with auto-categorization and full-text search, reducing manual triage by 70–80%.
- ›Automated IOC enrichment (IPs, domains, hashes) using AlienVault OTX and VirusTotal with concurrent scoring for faster SOC/IR investigations.
- ›Developed bulk domain intelligence tooling and large-scale website snapshot → PDF reporting for DFIR evidence documentation.
- ›Implemented Microsoft Teams → Azure Logic Apps → SharePoint workflows enabling near real-time advisory reporting.
- ›Led multiple fintech security engagements spanning data protection, detection engineering, IR, and SOC enablement.
- ›Developed MSRPC-specific alerts to identify unauthorized access attempts, reducing missed detections by 20%.
- ›Delivered Microsoft Purview DLP across ~400 endpoints and 15+ data sources with 10+ custom SITs and 25+ DLP policies, improving classification accuracy by ~40% and reducing business-impacting violations by ~30%.
- ›Deployed Defender, Intune, and Wazuh with 30+ security/compliance policies achieving 95% endpoint compliance.
- ›Built 30+ MITRE ATT&CK-mapped Sentinel queries improving detection coverage by ~30%.
- ›Led active breach response reducing MTTC by ~35%.
- ›Designed full incident management program including severity models, escalation matrices, and playbooks (~40% SOC readiness improvement).
- ›Delivered audit-ready artifacts enabling 100% closure of data protection and incident response audit observations.