RAJAMURUGAN K
Chennai
Summary
Lead consultant with over 19 years of experience driving client success and achieving business objectives. Expertise in business operations management, strategy development, and profitability enhancement. Proficient in cloud data DevOps automation and IT infrastructure management. Skilled in resolving complex challenges to improve client performance.
Overview
19
19
years of professional experience
1
1
Certification
Work History
Senior Consultant
HCLTech
Chennai
05.2025 - Current
- Served as subject matter expert for UNIX team at WASL in Dubai.
- Spearheaded administration and support of SUSE Linux environments, ensuring high availability and performance across mission-critical SAP applications and HANA clusters.
- Configured and managed HPE Service Guard and Pacemaker clusters, enhancing system resilience and fault tolerance.
- Leveraged SUSE Manager for patch management, compliance, and lifecycle automation, streamlining Linux administration tasks.
- Directed UNIX/Linux team operations, offering SME guidance on escalated issues and establishing best practices for system stability and security.
- Implemented proactive monitoring and performance tuning alongside disaster recovery strategies, ensuring minimized downtime and sustained business continuity.
- Collaborated with SAP teams to optimize integration between Linux infrastructure and enterprise applications.
- Environment: SUSE Linux, HPE Service Guard, Pacemaker, SAP Applications, SAP HANA Cluster, SUSE Manager
Senior Consultant
HCLTech
Riyadh
10.2023 - 05.2025
- Led major OS upgrade project for NCGR Riyadh, improving system performance and security.
- Executed in-place upgrades from unsupported RHEL 7.x and 8.x to RHEL 9.x, ensuring application retention.
- Performed seamless upgrades while maintaining configurations and user preferences.
- Migrated to latest supported OS version, enhancing system stability and security.
- Analyzed vulnerabilities on all reported Linux systems within NCGR HCL-supported servers.
- Resolved issues and implemented security patches, strengthening compliance with organizational standards.
- Reduced backlog of unresolved vulnerabilities, significantly improving overall system security posture.
Disney : Offshore SME & Lead
HCLTech
Chennai
02.2015 - 10.2023
- Identified, assessed, developed, and deployed solutions supporting data management, analytics, and business intelligence for evidence-based policymaking and information-driven internal activities.
- Executed an in-place upgrade of the Linux operating system to enhance performance and security.
- Led the team to maintain a stable Unix/Linux environment.
- Conducted vulnerability assessments to identify security weaknesses and implemented resolutions.
- Provide and support corporate solutions for internal and external collaboration in Cloud, On-Prem DC's, DevOps.
- Provide services, solutions, guidance, and expertise and promote the development of content, data, information, and knowledge management.
- Created technical documentation including system diagrams, process flow charts, and white papers.
- Created detailed reports on project progress and results, facilitating informed decision-making for stakeholders.
- Quickly identified customer needs through active listening and effective communication.
- Investigated customer complaints to determine root cause and implemented corrective actions, enhancing customer satisfaction.
Senior Principal Infrastructure Engineer
Mphasis an HP Company
Chennai
04.2012 - 01.2015
- Managed complete product life-cycle, defined product road maps aligning features, specifications, and cost requirements.
- Design and Develop Cloud solutions to meet business requirements.
- Focused on automation, containerization, integration monitoring, and configuration management to enhance system reliability.
- Experience in implementing host-based SAN migration and virtualization.
- Excels in the set-up of Production Support, DevOps, Build and Release Engineering.
- Acted as Subject Matter Expert for Linux, providing guidance and support to team members.
- Conducted fault finding and log analysis to identify performance exceptions for accurate reporting.
- Arriving with the best practices, tools, and process for continuous improvement.
- Upgrade and Migration of Servers from different flavors.
Senior System Administrator
Infinite Computer Solution (India) Ltd
Chennai
05.2009 - 04.2012
- Drove the team to ensure a stable Unix/Linux environment and participated in all critical and escalated issues as the subject matter expert.
- Proactively maintain and develop all Linux infrastructure technology to maintain a 24/7 uptime service.
- Tuned performance to ensure high availability of infrastructure.
- Tuned kernel parameters and monitored processes to enhance system performance.
- Managed software installations and applied patches to ensure system security and stability.
- Monitored SLA compliance and team response for incidents, service requests, and change requests.
- Analyzing and Providing RCA for all the major incidents and failed changes.
- Ensuring technical training for my team members, to upgrade the team skill set.
System Administrator
Satyam Computer Services Ltd
Bangalore
12.2006 - 05.2009
- Manage network servers and technology tools.
- Monitored system performance and troubleshot issues to ensure optimal operation.
- Troubleshoot critical issues and outages.
- Ensure security and efficiency of IT infrastructure.
- Installing and configuring software, hardware and networks.
- Upgrade systems with new releases and models.
- Develop expertise to train staff on new technologies.
- Built internal wiki with technical documentation and IT policies to enhance knowledge sharing and support.
- Managed IBM z/VM hypervisor and virtualization technology.
Education
Bachelor of Engineering - Field of Study
Madurai Kamaraj University
Madurai05-2001
Skills
- DevOps practices
- Microservices architecture
- Cloud platforms
- Docker and Kubernetes
- Ansible and Terraform
- Configuration management tools
- Automation strategies
- Performance monitoring
- Incident trend analysis
- Systems administration skills
- Linux and Unix systems
- Virtualization technologies
- Scalability solutions
- System stability
- Best practices
- Complex problem solving
- Splunk usage
Certification
- Site Reliability Engineer (SRE)
- Microsoft Certified: Azure Administrator Associate
- Microsoft Certified: Azure Solutions Architect Expert
- Certified Kubernetes Administrator (CKA)
- AWS Certified Solutions Architect – Associate
- Microsoft Certified: Azure Fundamentals
- Red Hat Certified Engineer (RHCE)
- Red Hat Certified Engineer in OpenStack
- Red Hat Certified Virtualization Administrator
- Certified ITIL Foundation
- IBM Certified System Administrator - WebSphere Application Server, Network Deployment V6.1
Languages
- Tamil
- English
- Tamil
Timeline
Senior Consultant
HCLTech
05.2025 - Current
Senior Consultant
HCLTech
10.2023 - 05.2025
Disney : Offshore SME & Lead
HCLTech
02.2015 - 10.2023
Senior Principal Infrastructure Engineer
Mphasis an HP Company
04.2012 - 01.2015
Senior System Administrator
Infinite Computer Solution (India) Ltd
05.2009 - 04.2012
System Administrator
Satyam Computer Services Ltd
12.2006 - 05.2009
Bachelor of Engineering - Field of Study
Madurai Kamaraj University