Desinguraja Palanivel
Technical Operations Specialist With 10+ Years In Vulnerability Management, Linux Administration, And Enterprise Security Operations. Skilled In Qualys, Tanium, Splunk, And Nagios, Driving Risk-based Remediation, Compliance, And Measurable Risk Reduction.
Salem,TN
Summary
Cybersecurity and Technical Operations Specialist with expertise in vulnerability management, Linux administration, and SOC tools. Skilled in incident management, security tool deployment, and risk mitigation, driving proactive threat detection and compliance. Seeking to leverage technical depth and operational leadership to strengthen organizational security posture.
Overview
13
13
years of professional experience
2
2
Certifications
Work History
Engineer III
Comcast India Engineering Center
07.2023 - Current
- Managed end-to-end vulnerability lifecycle using Qualys and Tanium for scanning, patching, and validation.
- Optimized incident response workflows, reducing false positives through SIEM threat intelligence correlation.
- Developed risk-based patch prioritization models, aligning remediation with business impact and compliance.
- Utilized Qualys and Tanium tools for bundle creation, patch activities, THR module maintenance, and package deployment on firewall-based Linux servers.
- Oversaw Splunk SIEM integration to enable real-time threat detection and faster incident response.
- Led Linux system hardening with SELinux configuration and anomaly detection to reduce attack surface.
- Delivered executive reports, translating technical risks into clear, actionable business insights
Assistant Consultant
Tata Consultancy Services
12.2021 - 07.2023
- Prepared monthly Qualys vulnerability and patch compliance reports.
- Deployed Qualys scanner appliances for scheduled and continuous scans across hybrid infrastructure.
- Enabled server log monitoring with Splunk; built dashboards and alerts.
- Prepared monthly Qualys vulnerability and patch compliance reports.
- Deployed Qualys scanner appliances for scheduled and continuous scans across hybrid infrastructure.
- Created Grafana/OIV dashboards to monitor environment logs.
- Managed TrendMicro Antivirus with Apex Central for storage protection, monitoring threats, versions, and environment status.
- Coordinated WAF implementation to protect websites against trojans, malware, and web attacks.
- Utilized Elastic and Grafana dashboards to monitor XRE spikes and engaged XOC team for resolution.
- Directed offshore team operations, including shift scheduling, access management, and people leadership.
Engineer
AstraZeneca
11.2019 - 12.2021
- Built and maintained Nagios XI/Core servers, Splunk infrastructure, and backup systems (QNAP/NAS) to ensure reliable monitoring and data protection.
- Configured and managed Linux services including DNS, DHCP, NFS/FTP file servers, LVM partitions, firewalls, and automated cron jobs.
- Administered satellite repositories and software updates in line with environmental policies, ensuring compliance and system stability.
- Delivered end-to-end system operations support through proactive monitoring, issue resolution, and secure infrastructure management.
Business Associate
Crown Solutions
02.2018 - 10.2019
- Analyzed Splunk, gateway devices, and STB client logs to identify and resolve errors, ensuring service reliability.
- Utilized multiple tools (SNOW, IOP, Splunk, Einstein360, Radar, X-ray, OVI dashboards) to gather and assess customer device logs.
- Provided solution support for Xfinity, Xfi, AVS, and XHome products, coordinating with development teams for OTT app support.
- Delivered proactive monitoring and troubleshooting across customer environments, improving issue resolution efficiency.
Assistant Systems Engineer
The Indian Express
06.2014 - 08.2017
- Managed Linux user accounts, workgroup permissions, and system troubleshooting across Windows and Linux environments.
- Performed weekly server maintenance, including log clearing, disk space checks, and backup monitoring with automated scripts.
- Configured network services, VOIP extensions, and resolved application troubleshooting requests.
- Installed, configured, and maintained file servers (NFS/FTP), firewalls, and storage backups to ensure secure and reliable operations.
Technical Consultant
Onward Eservice
08.2013 - 02.2014
- Installed and repaired Windows desktop operating systems within networked environments.
- Troubleshot and resolved hardware, software, and complex network client issues for desktops and laptops.
- Installed antivirus tools, recovered infected files, and configured remote access tools (TeamViewer, VNC).
- Assembled new systems, diagnosed hardware problems, and replaced faulty components.
Education
Bachelor of Engineering - Electronics And Communication Engineering
Gnanamani College of Technology
Namakkal, India 04.2001 -
Diploma - Electronics And Communication Engineering
Maruthi Polytechnic College
Salem, India 04.2001 -
SSLC -
Private
Salem, India 04.2001 -
Skills
Vulnerability Management Tools
Endpoint Security & Compliance:
Linux System Administration
Security Reporting & Communication
Qualy,Tanium,Splunk
Elastic Search,Nagios,WAF
Security Tools
Incident Management
Patching
Team Lead
Automation & AI Integration
Certification
AWS Certified SysOps Administrator
Timeline
Engineer III
Comcast India Engineering Center
07.2023 - Current
Assistant Consultant
Tata Consultancy Services
12.2021 - 07.2023
Engineer
AstraZeneca
11.2019 - 12.2021
Business Associate
Crown Solutions
02.2018 - 10.2019
Assistant Systems Engineer
The Indian Express
06.2014 - 08.2017
Technical Consultant
Onward Eservice
08.2013 - 02.2014
Bachelor of Engineering - Electronics And Communication Engineering
Gnanamani College of Technology
04.2001 -
Diploma - Electronics And Communication Engineering
Maruthi Polytechnic College
04.2001 -
SSLC -
Private
04.2001 -