Summary
Overview
Work History
Education
Skills
Timeline
Generic

SAIKUMAR BEERA

Hyderabad

Summary

System Administrator with over 3 years of experience in managing and maintaining complex IT infrastructures. Proficient in Windows and Linux environments, Office 365 administration, and network troubleshooting. Adept at implementing security protocols, enhancing system performance, and ensuring minimal downtime. Committed to leveraging innovative technologies to streamline processes and boost productivity.

Overview

3
3
years of professional experience

Work History

Linux System Administrator

Experience flow Software Technology
08.2022 - Current
  • Managed Windows Server (2008, 2012, 2016) and Linux environments (RHEL, CentOS, Ubuntu), ensuring smooth installation, configuration, and troubleshooting.
  • Configured network services, including TCP/IP, NFS, Samba, and firewalls (iptables, firewalld), ensuring secure connectivity and stable operations.
  • Performed regular disk management tasks, including LVM partitioning, resizing, and file system checks to optimize storage.
  • Configured BitLocker for disk encryption and provided troubleshooting for encryption-related issues.
  • Set permissions and access controls for files and directories across Linux and Windows servers to maintain security compliance.
  • Managed user accounts and permissions, ensuring secure access to servers and directories.
  • Installed, updated, and removed software packages using APT and YUM/DNF, ensuring optimal system performance and security.
  • Troubleshot booting issues and GRUB problems on Linux servers, providing effective recovery solutions to minimize downtime.
  • Set up Linux desktop environments and resolved user login loop issues to improve user productivity.
  • Implemented SELinux and SSL to secure server communications, ensuring compliance with security standards.
  • Configured spam alerts, implemented email protection policies, and monitored mail server health for secure communication.
  • Monitored system performance using tools like Htop, vmstat, and system logs, identifying and resolving
  • managed system logs (Linux: /var/log, Windows Event Viewer) to troubleshoot system errors and security issues.
  • Analyzed system and application logs through Prometheus integrations, troubleshooting errors and minimizing system downtime.
  • Monitored CPU usage, disk space, memory usage, and network traffic using custom dashboards in Grafana for real-time insights.
  • Set up and managed Raspberry Pi devices, including OS installation, licensing, and server IP configuration.
  • Deployed and configured devices on PiSignage-Server, managing digital asset libraries and device players for signage displays.
  • Administered Office 365 Admin Center, configuring and managing Microsoft Office, SharePoint Online, Exchange Online, and OneDrive for Business.
  • Installed and managed CrowdStrike antivirus on user systems, performing daily monitoring and resolving security alerts.
  • Configured and implemented Twingate for secure remote access, including SSL and root certificate setup for user access to domain links and servers.
  • Scheduled and performed weekly data backups and Maintained backup logs and reports to monitor the success of backup operations.

System Administrator

GLOBAL EXPAT TAX CONSULTING LLP
10.2021 - 08.2022
  • Completed reports detailing network and systems performance and downtime issues
  • Active Directory, adding systems to the domain, assigning user roles, and configuring Group Policies to enforce security and organizational policies.
  • Handling technical issues (Hardware Issues) of network work-group computers
  • Established Network Specifications and Analyzed Workflow, Access, Information, And Security Requirements
  • Network related Issue on Windows and servers and with vendors for hardware related issues
  • Assets management and hardware installation and hardware troubleshooting
  • Configured and maintained Group Policies to manage security, software distribution, and network settings across the organization
  • Performed ping tests to check network connectivity, latency, and packet loss between devices and servers, ensuring stable connections.
  • Conducted speed tests to measure network bandwidth and troubleshoot performance issues, optimizing internet and intranet performance.

Education

B.com - Computer Application

Telangana University

Skills

  • Operating Systems: Windows Server , Red Hat Enterprise Linux (RHEL), CentOS, Ubuntu
  • Networking: TCP/IP, Firewalls (iptables, firewalld), NFS, Samba Tools & Platforms: VMware, Hyper-V, Nagios, Prometheus, Grafana,pgAdmin, MySQL Workbench, Administration: 0365 office admin and google Workspace (G Suite Admin)
  • Databases: Database performance monitoring,Backup and restore using mysqldump
  • Cloud AWS (Basic Knowledge)
  • Security SELinux, SSL, BitLocker encryption, CrowdStrike antivirus
  • Hardware :IT asset management and hardware troubleshooting
  • Monitoring & Analysis: Htop, vmstat, iostat, system logs, Windows Event Viewer
  • Linux Administration: System configuration, user/group management, LVM, disk management
  • Security & Compliance: Firewalls, SELinux, SSL, Active Directory, Group Policies
  • Monitoring & Analysis: Htop, vmstat, iostat, system logs, Windows Event Viewer
  • Linux Administration: System configuration, user/group management, LVM, disk management

Timeline

Linux System Administrator

Experience flow Software Technology
08.2022 - Current

System Administrator

GLOBAL EXPAT TAX CONSULTING LLP
10.2021 - 08.2022

B.com - Computer Application

Telangana University

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