Sainath Mahajan

Proactively identified and mitigated emerging threats by implementing rapid countermeasures, leveraging Azure Sentinel and firewall logs to block malicious activity and enhance client security.

Facilitated seamless integration of diverse data sources into the Exabeam platform for clients, enhancing security visibility and analytics capabilities.

Identified Indicators of Compromise (IOCs) from suspicious files and implemented blocks at endpoint and network levels to prevent further compromise.

Led immediate response to security incidents, conducting thorough post-event analyses to identify root causes and prevent recurrence.

Developed and fine-tuned SIEM rules, reducing false positive alerts and improving the accuracy of threat detection.

Conducted comprehensive vulnerability assessments across all assets, enabling proactive risk mitigation and remediation strategies.

Applied MITRE ATT&CK framework expertise to enhance incident detection and response, accurately prioritizing and escalating security alerts.

Ensured 100% incident tracking against SLA guidelines via an automated system, improving response efficiency.

Analyzed multi-source enterprise system logs to identify and mitigate suspicious activities, enhancing threat detection capabilities.

Conducted cybersecurity awareness training for end-users, significantly reducing human-factor vulnerabilities across the organization.

Collaborated with IT Operations, Development, and Network Engineering teams to ensure secure system configurations across the enterprise.

Developed comprehensive documentation for incident detection, investigation, and response procedures, improving operational consistency and efficiency.

Researched emerging threats and vulnerabilities, implementing proactive measures to protect organizational assets from cyberattacks.

Performed forensic analysis of digital evidence during security incidents, supporting effective resolution and post-incident reviews.

Implemented new security technologies, including SIEM solutions and encryption tools, to bolster defense capabilities and data protection.

Configured and managed critical network security devices including firewalls, routers, switches, VPNs, IDS, and IPS systems.

Executed regular maintenance on automated systems, including upgrades, patching, and configuration changes, ensuring optimal performance and reliability.

Diagnosed and resolved complex errors in equipment and automated systems, minimizing downtime and improving system availability.

Developed automation scripts in Python, Bash, and PowerShell for various application processes, increasing operational efficiency.

Identified and capitalized on new automation opportunities through continuous research of industry innovations, driving process improvements.

Collaborated with development teams to integrate automation across all stages of the software lifecycle, streamlining development and deployment.

Optimized existing workflows by integrating automation tools like Ansible and Puppet, leading to significant efficiency gains.

Automated deployment processes across cloud and on-premises environments using Ansible, reducing deployment time and human error.

Configured, maintained, and monitored automated scripts and jobs using CI/CD tools like Jenkins and Bamboo, ensuring smooth operations.

Troubleshot and resolved Unix system issues, ensuring high availability and efficient machine provisioning.

Managed IP assignments and removals using Infoblox, maintaining network address integrity and preventing conflicts.

Oversaw a team of 8 engineers, providing comprehensive technical support and ensuring high customer satisfaction through effective communication.

Configured, implemented, and maintained critical Windows Server systems, including DNS, DHCP, Active Directory, Group Policies, WSUS, and Hyper-V.

Managed user accounts and group policies within Active Directory, ensuring secure access control and compliance.

Deployed operating system updates across all servers using automated patch management tools (SCCM), ensuring system security and compliance.

Implemented robust security measures, including firewalls and data encryption, to protect networks from unauthorized access.

Configured and maintained ESXi clusters, ensuring optimal performance, scalability, and high availability for virtualized environments.

Optimized existing application performance by profiling code and resource allocation, improving efficiency and responsiveness.

Diagnosed complex incidents involving inter-component interactions within operating systems, resolving critical issues promptly.

Implemented robust patch management processes for Linux systems, ensuring timely security updates and compliance.

Authored comprehensive documentation for system architecture, implementation procedures, and user guides for new production systems.

Deployed applications using Docker and Kubernetes containers, automating and streamlining the deployment process.

Contributed to the development of new features for existing applications, enhancing overall functionality and user experience.