Dorathy Nisha Jeyachandran

Cybersecurity leader with 11+ years of experience managing Security Operations Centres (SOC) and delivering enterprise-wide security solutions. Proven expertise in SIEM platforms (QRadar, Sentinel), EDR (CrowdStrike, Microsoft Defender), email security (Proofpoint, Mimecast), and vulnerability management. Skilled in leading large teams, developing playbooks, and driving incident response strategies to strengthen organizational resilience against evolving threats. Certified in CISA (valid until 2027) and Microsoft Certified Technology Specialist (MCTS).

In my current role as Senior Consultant at Infosys, I lead a team of 14 security analysts, overseeing SIEM (QRadar), EDR (CrowdStrike), email security (Proofpoint), and vulnerability management operations. My responsibilities include incident management, log source integration, adversary operations, and fine-tuning use cases to strengthen detection capabilities. Previously, at Carl Zeiss, I specialized in SOC process quality assurance, developing playbooks and SOPs to enhance operational efficiency and compliance.

Throughout my career, I have consistently delivered results by:
- Designing and implementing security monitoring frameworks across diverse industries.  
- Managing vulnerability assessments using Tenable Security Center and ensuring timely remediation.  
- Administering data loss prevention tools and email security platforms to mitigate insider and external threats.  
- Leading SOC teams of up to 30 members, fostering collaboration and performance excellence.  
- Managing enterprise security tools including Sentinel, CrowdStrike, Microsoft Defender, Proofpoint, and Mimecast.  
- Designing and implementing vulnerability management frameworks using Tenable Security Center.  
- Developing and fine-tuning SIEM use cases to improve threat detection accuracy.  
- Driving change management processes to ensure secure and efficient IT operations.
 

I hold a B.Tech in Engineering from Anna University, along with certifications including CISA (valid until 2027) and Microsoft Certified Technology Specialist (MCTS). These credentials, combined with my hands-on expertise, position me to contribute effectively to your organization’s cybersecurity posture.