Rajkumar M

• Patch Lifecycle, Ensure monthly security patches are tested, approved, and deployed within SLA timelines.
• Responsible for end-to-end Windows security patching across enterprise systems using Sentient Enterprises and BigFix Patch Management tool.
• Monthly Security Patch Deployment & Validation, Patch Compliance Reporting and Analysis, Vulnerability Management and Remediation.
• Monitor and manage Windows Server Backups to ensure data integrity and disaster recovery readiness. Backup Monitoring and Failure Troubleshooting.
• Monitor regular database backups (Microsoft SQL Server) and test restore procedures. Troubleshoot backup failures and coordinate with DBAs and system teams for resolution.
• Collaborate with security teams to address vulnerabilities based on CVE reports. Maintain documentation for patching and backup policies, procedures, and schedules.

• Administer and maintain SDH transmission systems including Tejas Networks, ensuring all circuits are working normal.
• Monitor network health and alarms using NMS tools (Tejas 5100) and perform corrective actions on SDH rings.
• Handle server performance tuning, log monitoring, disk management, and hardware-level diagnostics.
• Coordinate preventive and corrective maintenance schedules for both transmission and server systems.
• Conduct regular OS and firmware patching on critical Windows servers hosting telecom and database applications.
• Monitor database performance and handle tasks like disk space management, transaction log cleanup, and user access control.
• Perform routine preventive maintenance across physical servers, keeping detailed maintenance records for audits.

• Designed and implemented SDH ring topologies with primary and secondary path protection using OSPF (Open Shortest Path First) to ensure link resilience.
• Configured and deployed STM-16 trunks on Tejas TJ100MC systems, establishing high-capacity backbone links across core CMRL Station sites including OCC.
• Provisioned circuits end-to-end via Tejas TJ5100 NMS , including node discovery, circuit testing, and trail monitoring.
• Maintained and updated network diagrams, commissioning reports, and asset inventory in alignment with change management protocols.
• Maintained and administered Windows Server environments supporting SDH NMS applications (Tejas TJ5100), ensuring 24/7 availability and uptime.
• Provided full lifecycle management for database servers (Microsoft SQL) storing SDH circuit provisioning, fault logs, and network inventory.
• Applied critical OS and security patches to all SDH-supporting servers, mitigating vulnerabilities as part of regular patch management cycles.

OFC and Telecom Pop Maintenance:

• Maintained Railtel/ Telecom PoP sites , ensuring stable power supply through -48V DC battery bank systems , SMPS modules, and periodic backup testing.
• Performed preventive and corrective maintenance of OFC routes, identifying and resolving fiber cuts using OTDR testing.
• Led OFC restoration activities during outages, including fiber tracing, core re-splicing, and link validation using optical power meters and OTDR meter.
• Carried out regular inspections of telecom racks , verifying alarms, fan operation, power connections, and environmental parameters (temperature).
• Ensured proper grounding and surge protection systems were in place for all critical telecom equipment (MUX, routers, NMS servers).

Project Implementation:

• Executed installation and configuration of Tejas MUX at client sites for dedicated internet and leased line services.
• Documented complete commissioning details, IP schemes, port info, and alarm checks for handover to client IT/NOC teams.
• Provided on-site support for fault troubleshooting and post-installation monitoring during acceptance testing.

Helpdesk Activities:

• Supported server and database infrastructure used for NMS, alarms, and performance logs, including regular backups and OS patching.
• Performed preventive maintenance on Tejas, ALCATEL, DWDM and server racks, ensuring optimal cooling, power connectivity, and alarm-free operation.
• Monitored and maintained -48V DC battery banks and SMPS systems , verifying voltage levels and performing periodic backup power tests.
• Coordinated with NOC teams during fault conditions for remote loop testing, circuit diagnosis , and hardware escalation.