Purnanuj Shrivastava
Senior Cybersecurity Engineer
About
Driven by a passion for cybersecurity, I excelled at COLT Technology Services, where I mastered incident response while fostering teamwork and leadership. My expertise in SIEM, EDR, and exceptional communication skills led to significant process improvements.
Skills & Expertise (7)
Work Experience
Senior Technical Analyst
Hexaware Technologies
Nov 2023 - May 2025
Monitored endpoint activity using MS Defender EDR to detect and respond to threats. Operated within SIEM environments, including Sentinel and ArcSight, for security events, and worked with DLP tools to safeguard sensitive data. Performed phishing investigations, malware analysis, and email header analysis to identify potential threats. Managed incident tickets through ServiceNow, ensuring timely resolution in line with SLAs. Maintained awareness of evolving use cases, security processes, and emerging threats. Participated in regular meetings with leadership to report on incident trends and security posture. Expertise in security device management and multiple SIEM platforms. Respond to escalated security alerts, conduct investigations, and notify clients. Responsible for investigating incidents, analyzing attack methods, researching new defense techniques and tools, developing security policies, and documenting procedures.
Senior Cybersecurity Engineer
Colt Technology Services
May 2025 - Present
Monitored endpoint activity using MS Defender EDR to detect and respond to threats. Operated within SIEM environments, including Sentinel and ArcSight, for security events, and worked with DLP tools to safeguard sensitive data. Performed phishing investigations, malware analysis, and email header analysis to identify potential threats. Managed incident tickets through ServiceNow, ensuring timely resolution in line with SLAs. Maintained awareness of evolving use cases, security processes, and emerging threats. Participated in regular meetings with leadership to report on incident trends and security posture. Expertise in security device management and multiple SIEM platforms. Respond to escalated security alerts, conduct investigations, and notify clients. Responsible for investigating incidents, analyzing attack methods, researching new defense techniques and tools, developing security policies, and documenting procedures.
Cybersecurity Analyst / SOC Analyst
Retinodes Software Solution
Jan 2020 - Nov 2023
Primary responsibilities include monitoring and triaging all security events coming into the SOC from multiple sources. Updating the ticketing system thoroughly and promptly. Follow up and resolve issues/tickets timely per SLAs. Communicating with cross-functional teams to make sound decisions. Monitors the health of security sensors and endpoints. Staying updated with new use cases and process changes.
Technical Support Engineer
AGS Cybertech
Feb 2016 - Dec 2019
Implemented security protocols and policies to protect user data. Deleted, created, and managed user accounts and privileges using Active Directory. Monitored system performance and implemented system upgrades as needed.
Education
Bachelor of Engineering in Electronics and Communication - RGPV University
2008 - 2012 · Afghanistan
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Availability Details
Visa Status
Citizen
Relocation
Open to Relocation
