Thiyagarajan Mani

Work closely with customers providing technical and security leadership to protect on-prem and Cloud assets from malicious attacks and unauthorized access, providing architecture security design/review, and security awareness training. Align and reinforce business continuity, compliance management of information security policies and standards in the areas of physical, account, data, corporate services, network and computer systems, applications services, systems services, change management, incident response, and data center security.

• Designed, installed and configured MS Sentinel, EDR and Zscaler infrastructure.
• Involved in security architecture design and assessment.
• Created policies and procedures for emerging security technologies and proposals.
• Performed assessments for Mergers and Acquisitions (M&A) of Boots and Alliance.
• Managing the Endpoint Detection and Response (EDR) platform - Microsoft Defender for Endpoints (MDE).
• Handling the infrastructure of Digital Guardian DLP.
• Managing the rules and policies for Sentinel, EDR and Zscaler.
• Develop, document and/or refine processes to standardize and automate wherever possible.
• Collaborate with internal teams to understand systems, integrate with them, and develop SOPs for supporting them.
• Apply debugging and troubleshooting skills to determine the root causes of issues in different kind of systems and resolve them.
• Participate in team practices such as: planning, standups, retrospectives, peer review, working sessions.
• Collaborated with cross-functional teams for seamless integration of security protocols into existing infrastructure.
• Optimized system performance through the implementation of advanced monitoring tools and techniques.
• Conducted regular security audits to identify weaknesses and implement appropriate countermeasures.
• Reduced cyber threats through thorough vulnerability assessments and risk analysis.
• Created frameworks by designing and developing technical solutions.
• Designing, implementing, and managing an organization's cybersecurity program and develop, enforce security policies, assess risks, and respond to security incidents
• Enhanced overall network security by conducting comprehensive risk assessments and implementing recommended controls..

• Represented company's technical security interests to partners to provide bi-directional flow of technical information and best practices in information security.
• Provided consultation and technical services on all aspects of information security.
• Delivered network system upgrade on time, under budget and with minimal service interruption.
• Performed network troubleshooting to isolate and diagnose common problems.
• Created policies and procedures for emerging security technologies and proposals.
• Enhanced security measures by designing and implementing comprehensive network architecture strategies.
• Reduced cyber threats through thorough vulnerability assessments and risk analysis.

• As an Information Security Manager is responsible for designing, implementing, and managing an organization's cybersecurity program and develop, enforce security policies, assess risks, and respond to security incidents
• Enhanced overall network security by conducting comprehensive risk assessments and implementing recommended controls.
• Conducted thorough audits of system access rights, reducing unauthorized access to sensitive data.
• Conducted security audits to identify vulnerabilities.
• Performed risk analyses to identify appropriate security countermeasures.
• Recommend improvements in security systems and procedures.
• Performed detailed forensic investigations, uncovering root causes of security incidents and recommending appropriate preventative measures.
• Managed third-party vendor relationships, ensuring compliance with established security standards and best practices.
• OS Hardening and Vulnerability remediation on onprem Linux and Windows Servers
• Mitigation procedure for Application / DB related vulnerabilities.
• DevSecOps deployment for secured DevOps SDLC by enforcing DLP policies , standards on GitHub repository
• Performing OS and Application patching using RedHat ansible as part of vulnerability remediation.
• Increased organizational awareness of cybersecurity threats by delivering engaging employee training sessions on safe online practices.

Vulnerability Management Role:

• Conducted security audits to identify vulnerabilities.
• Performed risk analyses to identify appropriate security countermeasures.
• Recommend improvements in security systems and procedures.
• Performed detailed forensic investigations, uncovering root causes of security incidents and recommending appropriate preventative measures.
• Managed third-party vendor relationships, ensuring compliance with established security standards and best practices.
• Management of Users and groups in Windows Active Directory.
• Managing Linux, AIX and Solaris Servers
• Developed Unix Shell scripts for User management related activities and for some server issues.
• Troubleshoot access related issues in Unix servers, Mainframe and Windows applications.