Rahul Aggarwal
Security Engineer
Delhi
Summary
Experienced Security Engineer with a strong background in enterprise security, incident response, and risk management. Skilled in deploying and managing EDR solutions, conducting vulnerability assessments, and implementing Zero Trust security frameworks. Proven ability to enhance security posture through proactive monitoring, threat detection, and continuous improvement initiatives. Adept at managing cloud security, vendor security reviews, and security awareness training programs.
Overview
10
10
years of professional experience
4
4
years of post-secondary education
Work History
Security Engineer - II
CoinSwitch
Bangalore
12.2021 - Current
- Oversaw enterprise security operations, ensuring proactive threat detection, incident response, and continuous security posture improvement.
- Deployed and managed EDR solutions (CrowdStrike, SentinelOne); handled alerts and led incident response to strengthen endpoint security.
- Conducted InfoSec training via KnowBe4 and ran phishing simulations to improve employee security awareness.
- Achieved 100% DMARC compliance by implementing domain-level email authentication policies and monitoring.
- Managed network security tools (NetSkope, Cisco Umbrella) monitored alerts, and responded to threats.
- Supported ISO 27001 readiness by reviewing security policies, assessing controls, and assisting with audit preparations.
- Owned end-to-end vendor security review process during onboarding, ensuring alignment with compliance and risk standards.
- Evaluated and implemented Zero Trust Network Access (ZTNA) using JumpCloud to enable identity-based access, device trust, and unified policy control.
Security Engineer - II
OLX Group
Gurugram
11.2020 - 12.2021
- Managed security tasks and incident response for Firepower IPS, ensuring proactive threat detection and mitigation.
- Developed and implemented strategies to detect and prevent domain impersonation attacks.
- Mitigated zero-day vulnerabilities and security threats using Desktop Central for patch management and endpoint protection.
- Identified and mitigated critical security alerts, ensuring prompt response to minimize potential risks.
Senior Security Principal
Home Credit India
Gurugram
03.2020 - 11.2020
- Implemented a Data Loss Prevention (DLP) project using Digital Guardian and Microsoft 365 DLP to safeguard sensitive information and prevent data leaks.
- Automated security workflows and incident response processes using Python, improving efficiency and response times.
- Redesigned and optimized security alert response strategies, reducing incident resolution times and enhancing threat management.
Security Engineer (CSIRT Ops)
Expedia Group
Gurugram
10.2017 - 02.2020
- Investigated and responded to security incidents, managed operational security systems, and ensured timely remediation.
- Conducted threat campaign analysis and led mitigation strategies for cloud infrastructure vulnerabilities.
- Monitored and responded to AWS cloud security alerts, ensuring timely identification and resolution of potential risks.
Cyber Security Analyst
Virtual Employee Pvt Ltd
02.2017 - 10.2017
- Analyzed phishing campaigns and collaborated with hosting providers to successfully dismantle malicious infrastructures.
- Conducted vulnerability assessments on client systems to identify and address potential risks proactively.
Information Security Analyst
Rinox Engineering
12.2014 - 02.2017
- Performed basic vulnerability assessments and monitored security incidents to support IT risk mitigation efforts.
- Assisted in incident response activities for internal and external security breaches, contributing to containment and recovery efforts.
Education
B.Tech - Computer Science Engineering
MDU University
India 03.2010 - 03.2014
Skills
Incident Response
Zero Trust Network Access
DMARC
Data Loss Prevention (DLP)
Security Awareness Training
Cloud Security
Scripting & Automation
Application Security
Accomplishments
- Achieved and Maintained 100% DMARC Compliance
- Spearheaded EDR Deployment
- Zero Trust Framework Implementation
- DLP Project Implementation
Core Technical Skills - Security Tools
- Endpoint Security: FireEye, SentinelOne, CrowdStrike, McAfee, Cisco AMP, Kaspersky
- Security Information and Event Management (SIEM): Splunk, QRadar, Kibana
- Network Security: Cisco Umbrella, NetSkope
- Cloud Security: AWS, GuardDuty
- Scripting & Automation: Python, Bash
Timeline
Security Engineer - II
CoinSwitch
12.2021 - Current
Security Engineer - II
OLX Group
11.2020 - 12.2021
Senior Security Principal
Home Credit India
03.2020 - 11.2020
Security Engineer (CSIRT Ops)
Expedia Group
10.2017 - 02.2020
Cyber Security Analyst
Virtual Employee Pvt Ltd
02.2017 - 10.2017
Information Security Analyst
Rinox Engineering
12.2014 - 02.2017
B.Tech - Computer Science Engineering
MDU University
03.2010 - 03.2014
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