M. Rajasekaran
Coimbatore,Tamil Nadu
Summary
Results-driven Cloud Infrastructure Engineer with 13 years of experience in AWS and GCP. Specializes in Linux and Windows server administration, cloud management, virtualization, and automation. Holds AWS Solutions Architect Associate and RHCE certifications, with a focus on optimizing system performance and implementing IT solutions to enhance operational efficiency.
Overview
1
1
Certification
16
16
years of professional experience
Work History
Technical Operations Analyst
Infosys Limited
08.2015 - Current
- Managed AWS cloud infrastructure to ensure reliability and security of EC2, VPC, IAM, security groups, and DNS configurations.
- Created and maintained CloudFormation templates for automated infrastructure deployment.
- Administered Linux and Windows production servers in enterprise environments.
- Implemented Bash scripts to automate operational monitoring tasks, enhancing responsiveness to system performance issues.
- Managed Active Directory users, groups, and security permissions effectively.
- Performed backup restoration, OS patching, troubleshooting, and maintenance activities.
- Utilized ServiceNow for incident requests and change management processes.
- Developed and maintained Windows/Linux golden images for streamlined deployments.
- Provisioned and managed GCP user accounts, assigning project-level and user-level roles.
- Configured OKTA integration for secure GCP console access.
- Automated project creation using GitHub and Terraform, ensuring Infrastructure as Code practices.
- Applied fine-grained IAM policies to enforce least-privilege access across projects.
- Conducted root cause analyses to troubleshoot and resolve technical issues effectively.
- Monitored system performance metrics to ensure alignment with operational standards.
- Facilitated workshops to promote knowledge sharing and continuous improvement initiatives.
- Diagnosed root causes of technical problems in a timely manner.
- Collaborated with other teams to ensure successful integration of new technologies.
- Monitored system operations for potential problems or outages.
- Implemented solutions to optimize performance of IT systems.
- Developed scripts using PowerShell or other scripting languages for automation purposes.
- Coordinated with vendors to troubleshoot complex issues.
- Provided technical support for system and network issues.
- Maintained hardware and software security protocols.
- Monitored network operations to identify performance, capacity, and utilization issues.
- Collaborated with infrastructure personnel and departmental managers to identify and implement cost-saving technologies, improving resource allocation.
- Adapted new technology and methods, enhancing program effectiveness.
- Managed system configurations and software updates for optimal performance and reliability.
- Documented standard operating procedures for technical operations and best practices.
Network Administrator
WINTLT Technologies Pvt Ltd
11.2013 - 08.2015
- Managed VMware ESX virtualization infrastructure.
- Configured Cisco routers, NAT, and network administration.
- Installed and administered Linux and Windows server environments.
- Configured Samba, NFS, VSFTP, SSH, and LAMP services to support seamless file sharing and web hosting.
- Automated backup activities using Bash scripting and cron jobs to ensure data integrity and availability.
- Installed and maintained GitLab and Redmine servers.
- Troubleshot virtual machine and infrastructure issues to minimize downtime and maintain system reliability.
Executive FMS Engineer
AstroVed.com Pvt Ltd
02.2012 - 10.2013
- Administered Exchange Server 2010 and Active Directory to ensure reliable email services and secure user access.
- Configured proxy servers and Group Policies to enhance network security and streamline user access controls.
- Administered Windows and Linux server environments.
- Oversaw user account management in the IT department. and infrastructure support.
FMS Engineer
CMS Info Systems Pvt Ltd
06.2010 - 02.2012
- Designed and implemented maintenance schedules for FMS systems.
- Coordinated troubleshooting efforts for operational issues in FMS equipment.
- Managed inventory of spare parts for efficient system repairs.
- Managed Windows desktop and domain controller support to ensure system reliability.
- Configured network shares, printers, and antivirus management to enhance user accessibility.
Education
Bachelor of Science - Information Technology
A.P.S.A College of Arts And Science, Alagappa University
Thiruppattur, Sivaganga District, Tamil Nadu.01-2009
Skills
- AWS services
- Cloud platform management
- Infrastructure automation
- IAM management
- System performance monitoring
- Incident response management
- Virtualization management
- Virtualization technologies: VMware ESX
- Network administration and support
- Infrastructure services
- Automation scripting
- Technical assistance and support
- Tools: ServiceNow, GitLab, Redmine
- Project workflows
- Operating systems
- Change control
Certification
- AWS Certified Solutions Architect – Associate, Microsoft Azure AZ-70-533, RHCE – Red Hat Certified Engineer
Additional Information
- Total Experience: 13+ Years
- Languages Known: English, Tamil
- Current Location: Coimbatore, Tamil Nadu
Timeline
Technical Operations Analyst
Infosys Limited
08.2015 - Current
Network Administrator
WINTLT Technologies Pvt Ltd
11.2013 - 08.2015
Executive FMS Engineer
AstroVed.com Pvt Ltd
02.2012 - 10.2013
FMS Engineer
CMS Info Systems Pvt Ltd
06.2010 - 02.2012
Bachelor of Science - Information Technology
A.P.S.A College of Arts And Science, Alagappa University