Dijo Davis Chemmannur

Senior System Engineer

Professional Summary

Passionate and tech-enthusiast Senior System Engineer with extensive expertise in IT Infrastructure support services. Proven track record in Windows and Linux system administration, with growing capabilities in Azure and AWS cloud technologies. Skilled in architecting robust environments, managing Active Directory, and deploying hybrid cloud solutions.

Work Experience

Senior System Engineer

  • Manage and maintain large-scale Windows Server environments, ensuring high availability and security.
  • Administer Active Directory, Group Policies, and Hyper-V virtualization infrastructure.
  • Oversee Linux server operations including RHEL, CentOS, and Ubuntu maintenance.
  • Implement and monitor Azure cloud resources and hybrid connectivity.

System Engineer / Administrator

  • Provided L2/L3 support for enterprise IT infrastructure.
  • Configured and managed web servers (Apache, Nginx) and application servers (Tomcat, JBoss).
  • Automated administrative tasks using Shell scripting and simplified deployment flows.
  • Managed Office 365 user accounts, licenses, and Exchange Online configurations.

Technical Skills

Infrastructure

Windows Server, Active Directory, Group Policy, Hyper-V, NFS, CIFS, LVM

Linux & Web

RHEL, CentOS, Ubuntu, Apache, Nginx, Tomcat, JBoss, VSFTP

Cloud & DevOps

Azure (Beginner), AWS (Beginner), Docker, Containers, Jenkins

Productivity

Office 365 Administration, Exchange Online

Education

Degree Name