Dathathreyalu Tirukala Purushothaman

Senior individual contributor responsible for security operations across a 500-person automotive technology company. Work cross-functionally with engineering, IT, and product teams to drive security outcomes. · Reduced MTTR by 35% through SIEM optimization. · Eliminated 70% of critical vulnerabilities via DevOps-integrated program (Nessus, Qualys, Black Duck) · Delivered ISO 27001 and ISO 21434 readiness programs end-to-end · Designed executive dashboards translating security KPIs into board-level decisions

Regional cybersecurity leadership across enterprise, R&D, and cloud environments for Nokia's APAC operations. Advisor to C-suite on cyber risk, investment priorities, and security posture. Key results: · Built SOC from zero — architecture, tooling (SIEM/EDR), hiring model, and all operating procedures · Implemented cloud security governance across AWS, Azure, and GCP · Led ISO 27001 and NIST SP 800-53 implementation across multi-geography environments · Directed advanced threat hunting & malware analysis.

Enterprise backup platform migration and L2/L3 support. Improved resolution time by 30% through structured RCA processes.

Network infrastructure management — Cisco firewall deployments, VLANs, VPNs, BGP routing, and OS hardening.