Manigandan Sekar

About Manigandan Sekar

I\'m a Cybersecurity Lead with over 9 years of experience working across various sectors…

Experience

1. Senior Consultant

   Deloitte

   Aug 2024 — Present · Chennai, IN

   Cybersecurity Lead | Incident Response | Threat Detection | People & Platform ManagementAs a cybersecurity lead, I drive end-to-end threat detection, response, and remediation across enterprise environments. My focus is not only on technical depth but also on mentoring teams, optimizing playbooks, and aligning detection strategy with business priorities — setting the foundation for a transition into a security manager role.I lead critical initiatives such as fine-tuning SIEM/EDR rules (QRadar, Splunk, Sentinel, CrowdStrike, Defender), real-time containment via SOAR, and firewall and proxy investigations (Zscaler). I’ve managed on-call via PagerDuty, triaged alerts from HackerOne, penetration tests, and external bug bounties, and ensured timely resolution through ServiceNow and Jira.I also coordinate impersonation site and app takedowns (Netcraft) manage phishing mailboxes, and collaborate with Microsoft to address false positives and improve detection quality. I’ve worked with logs across Azure, AWS (including GuardDuty), and tools like Qualys, Duo, SailPoint, MS Purview, DivvyCloud, Polarity, and FlightCenter.Beyond operations, I lead ticket quality audits, platform issue follow-ups, and contribute to knowledge sharing through Confluence. I’ve also conducted numerous interviews to build a strong SOC team, encouraging a culture of learning and accountability.Cybersecurity LeadershipIncident Response ManagementThreat Detection & ContainmentSOC & Shift OperationsSIEM (QRadar, Splunk, Sentinel)EDR (CrowdStrike, Defender)Zscaler, Firewalls, IPAMMicrosoft Security SuiteAzure/AWS Security (GuardDuty, Logs)Bug Bounty Case HandlingSOAR & AutomationJira, ServiceNow, ConfluenceSecurity Interviews & Mentoring

Education

• SRM University

  Master of Technology (M.Tech.), Information security and cyber forensics

  2014 — 2016

• Velammal Engineering College

  Bachelor of Engineering (B.E.), Computer Science

  2010 — 2014

• Shebha Matric Higher Secondary School

  higher secondary certificate, Computer Science

  1995 — 2010

Skills

• Security Incident & Event Management
• Cisco Amp
• Linux
• Adobe Photoshop
• Servicenow
• Microsoft Office
• Log Analysis
• Html
• Infoblox
• Penetration Testing
• Network Security
• Python
• Security Information and Event Management (Siem)
• Regex
• Web Development
• C++
• C
• Programming
• Photoshop
• Security Incident Response
• Promisec
• Qradar
• Networking
• Windows
• Splunk
• Nexpose
• Network Administration
• Email Security