KARTHIK SUNDARESAN
Chennai
Summary
Results-driven IT Infrastructure Manager with eleven years of experience in overseeing SOC platform activities. Proficient in SIEM, EDR, and Email Security, delivering robust solutions to enhance cybersecurity posture. Demonstrates exceptional problem-solving abilities and effective communication skills, fostering collaboration across teams. Aiming to leverage expertise in a challenging role that drives innovative security initiatives.
Overview
14
14
years of professional experience
1
1
Certification
Work History
Senior Information Security Engineer
GAVS TECHNOLOGIES
Chennai
03.2024 - 01.2025
- Led and motivated a team of security analysts in a 24/7 security operations center (SOC) environment
- Developed and implemented team training programs to ensure proficiency in security tools and incident response procedures
- Analyzed security events and alerts to investigate and respond to security incidents efficiently
- Effectively communicated security threats and incidents to stakeholders, including management and executive teams
- Implemented and managed Sentinel One EDR across all endpoints, significantly improving threat detection and response capabilities
- Conducted threat hunts using Sentinel One's investigation tools, identifying and mitigating advanced threats
- Developed and maintained custom reports and dashboards to track key security metrics
- Implemented and administered Microsoft Defender for Endpoints (MDE), which included configuration, policy administration, threat hunting, and incident response
- Experience in investigating and responding to advanced threats, including malware, ransomware, and phishing attacks using MDR
- Implemented security best practices and MDE recommendations to improve security posture
- Implemented metrics and reporting to track team performance and identify areas for improvement
- Collaborated with other IT teams (e.g., network security, incident response) to ensure a coordinated security posture
SPECIALIST
HCL TECHNOLOGIES
Chennai
02.2019 - 03.2024
- Detecting, responding, mitigating, and reporting on cyber threats/incidents that may impact the environment
- Utilized the MITRE ATT&CK framework to understand adversary tactics, techniques, and procedures (TTPs) and enhance threat detection and prevention strategies
- Working on incidents and reviewing the notable events and performing detailed analysis
- Development and Maintenance of SOPs, Use Cases & Run Books
- Fine-tuning correlation events for False Positive incidents
- Utilized the NIST CSF's Identify, Protect, Detect, Respond, and Recover framework to assess and improve organizational cybersecurity posture
- Analyzed security posture using frameworks like NIST CSF to identify gaps and recommend improvements
- Collaborated with IT, security, and compliance teams to implement security controls based on industry frameworks
- Worked intensively on the Incident response chain
- Preparing Pattern Reports on weekly and Monthly basis on the analysis and updating to the client
- Continually identify, assess and manage vulnerabilities across endpoints and systems on weekly/Monthly basis
- Utilized threat intelligence feeds to stay informed about emerging threats and configure solutions accordingly
- Reduced phishing instances
- Generated reports on Email security activity and identified trends to optimize security posture and resource allocation
SYSTEM ADMINISTRATOR
SMART POINT SYSTEMS
Chennai
02.2017 - 02.2019
- Created user accounts and managed access rights for users.
- Implemented and provided technical support for voice services and equipment.
- Installed, tested and evaluated new systems, applications and patches.
- Troubleshot application errors and provided technical support to end-users.
- Coordinated with third-party vendors for resolution of incidents or provisioning services.
SYSTEM ADMINISTRATOR
WELLABET MEDSOLUTIONS PVT LTD
Chennai
01.2014 - 10.2015
- Active Directory management
- Set up user accounts, permissions and passwords and defined network policies and procedures
- Bandwidth using management & usage access control, Troubleshooting of LAN/WAN, Data back and Recovery
- Management, Maintenance and Troubleshooting of company's network deployed at different departments
- Provided Level2 Support for end-to-end users
SYSTEM ADMINISTRATOR
TENSOR INFOTECH PVT LTD
Chennai
02.2011 - 12.2013
- Active Directory, Group Policies, and system-based policies configuration
- DHCP configuration and management
- Created user accounts and managed access rights for users.
- Submitted recommendations regarding infrastructure overhauls.
- Administered user accounts, permissions, and access controls, enhancing security and compliance.
Education
B Tech - IT
PSNA College of Engineering And Technology
Skills
- SIEM
- Vulnerability Management
- Team Leadership
- Incident response
Certification
Google Cloud Certified - Associate Cloud Engineer
Languages
- English
- Tamil
Personal Information
Date of Birth: 08/14/87
Timeline
Senior Information Security Engineer
GAVS TECHNOLOGIES
03.2024 - 01.2025
SPECIALIST
HCL TECHNOLOGIES
02.2019 - 03.2024
SYSTEM ADMINISTRATOR
SMART POINT SYSTEMS
02.2017 - 02.2019
SYSTEM ADMINISTRATOR
WELLABET MEDSOLUTIONS PVT LTD
01.2014 - 10.2015
SYSTEM ADMINISTRATOR
TENSOR INFOTECH PVT LTD
02.2011 - 12.2013
B Tech - IT
PSNA College of Engineering And Technology
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