Vallalar Kabilan
Dallas,TX
Summary
Dynamic IT leader with over 20 years of experience in Information Technology and Cybersecurity. Expertise in managing production support teams and overseeing full development lifecycles, ensuring operational excellence in demanding environments. Strong technical skills in Identity & Access Management (IAM), authentication, data analytics, and compliance drive successful project outcomes. Committed to cross-functional collaboration and fostering a culture of security and continuous improvement.
Overview
23
23
years of professional experience
3
3
Certifications
Work History
Associate Director – Cybersecurity
AT&T Services Inc.
Plano, TX
07.2020 - Current
- Supervised team of 20+ employees and contractors for development and support of Global Logon platform, managing over 500 million identities.
- Designed and implemented enterprise-wide Identity & Access Management (IAM) solutions, enhancing security posture and user experience.
- Led enterprise-wide analytics initiatives, transforming raw data into actionable insights that drove measurable improvements in business KPIs and operational efficiency.
- Managed IAM infrastructure supporting over 500 backend systems across multiple environments for consumers and employees.
- Supported high-volume clients like HBOMax and DirecTV Stream with Single Sign-On solutions for improved user access.
- Successfully reduced 95% of vulnerabilities through software upgrade and new development, decreasing operational costs and ensuring SOX and PCI compliance.
Principal Prod/App Support
AT&T Services Inc.
St Louis, Missouri
01.2020 - 06.2020
- Supervised migration of legacy IAM to newer platform, ensuring smooth transition.
- Drove transformation projects that automated data collection and reporting, reducing manual effort and increasing data reliability.
Senior Prod/App Support
AT&T Services Inc.
St Louis, Missouri
09.2002 - 12.2019
- Responsible for implementing advanced reporting dashboards, enabling leadership to make data-driven decisions and optimize resource allocation across multiple departments.
Education
Master of Science - Computer Science
Bachelor of Engineering - Computer Science
Skills
- Identity & Access Management (IAM)
- Leadership & Team Development
- Compliance & Regulatory Standards (SOX, PCI)
- Data Analytics and Root Cause Analysis
- Infrastructure & Production Support
- Software Development & AI tools
- Client Interaction & Public Speaking
- Customer Experience & User Experience
- People & Project Management
- Vendor & Contractor Negotiation
- Automation & Process Improvement
Certification
• LinkedIn Cybersecurity certificates
Timeline
Associate Director – Cybersecurity
AT&T Services Inc.
07.2020 - Current
Principal Prod/App Support
AT&T Services Inc.
01.2020 - 06.2020
Senior Prod/App Support
AT&T Services Inc.
09.2002 - 12.2019