ZAKKARIYA's CV
ZAKKARIYA PARAKKADAVATH ABDULLA PARAKKADAVATH
Senior Systems & Cyber Security Administrator
Profile summary
Strategic Senior Systems and Cyber Security Administrator with 15 years shaping cyber security and infrastructure outcomes. Known for expertise in Zero Trust architecture, firewall management, and compliance standards such as ISO 27001. Committed to maintaining robust network uptime and securing enterprise environments.
Career highlights
Firewall And Zero Trust Operations: Managed SonicWall NGFW firewalls and implemented Zero Trust architecture across environments, reducing the attack surface by 40% and maintaining 99.9% uptime.
Identity And Platform Administration: Administered enterprise SharePoint for 500+ active sites and used Power Automate and Power Apps to digitize internal approval workflows, reducing manual processing time.
Security Automation And Scripting: Implemented automation strategies using PowerShell and Python to streamline server provisioning and patch management, reducing manual errors by 25%.
Agentic AI Security System: Built a Python-based Agentic AI system that monitors real-time metrics from PRTG, SonicWall, and Windows Event Logs to detect anomalous traffic patterns.
Key skills
Professional experience
Directs core infrastructure and security systems, steering team operations and technology standards across on-premise and cloud environments. Manages firewall architectures, enterprise servers, and identity platforms while establishing security protocols and compliance frameworks for critical government data.
- Maintains 99.9% uptime by managing SonicWall NGFW firewalls, handling rule optimization, VPN configurations, and rapid resolution of complex network issues.
- Reduces attack surface by 40% through the implementation and maintenance of Zero Trust architecture across on-premise and cloud environments.
- Ensures strict adherence to ISO 27001 standards across all infrastructure components by performing rigorous security checks, vulnerability assessments, and IT audits.
- Reduces manual processing time by 30% by administering enterprise SharePoint and using Power Automate and Power Apps to digitize internal approval workflows.
- Reduces manual errors by 25% through automation strategies using PowerShell and Python to streamline server provisioning, patch management, and system health checks.
Shaped technology operations and governance standards, steering multi-site infrastructure platforms, cloud hybrid integrations, and automated security frameworks across government systems.
- Implemented Zero Trust architecture across on-premise and cloud environments, reducing the attack surface by 40%.
- Administered enterprise SharePoint for 500+ active sites and used Power Automate to digitize approval workflows, reducing manual processing time.
- Built a Python-based Agentic AI system that monitors real-time metrics from PRTG, SonicWall, and Windows Event Logs to detect anomalous traffic patterns.
Completed undergraduate computer science education, building foundational technical knowledge in networking, systems administration, and software development through formal academic coursework and professional training programs.
- Obtained foundational certifications in enterprise server administration and network routing principles to support technical infrastructure operations.
- Completed professional training in ASP.NET and SQL Server database management within the academic period.
Education
Computer Science