$ whoami

Hi, I'm Goli Sai Krishna

Linux Administrator|

3+ years of enterprise experience managing mission-critical infrastructure at Amazon, Cognizant, and TCS. Specialized in Linux server administration, shell scripting automation, and scalable system architecture.

Hire Me Freelance Services
Amazon
Cognizant
TCS (Current)
Girl
// about me

About Me

Infrastructure professional with a passion for system reliability and automation

3+
Years Experience
3
Top MNCs
100+
Servers Managed
99.9%
Uptime Achieved

Building Rock-Solid Infrastructure

I'm a dedicated Linux Administrator with over 3 years of hands-on experience in managing enterprise-level infrastructure. My journey began at Amazon, where I learned to handle high-scale operations, then progressed to Cognizant for diverse client environments, and now contributing to TCS.

I specialize in Linux system administration, shell scripting for automation, and server management. My focus is on ensuring maximum uptime, implementing robust security measures, and streamlining operations through smart automation.

Server Administration
Shell Scripting
24/7 Support
Security Hardening
Performance Tuning
Disaster Recovery
// technical skills

Core Expertise

Technologies and tools I work with daily

Linux Administration

Expert-level proficiency in RHEL, CentOS, Ubuntu, and Debian. System configuration, package management, kernel tuning, and user management.

Proficiency 95%
RHEL CentOS Ubuntu Debian KVM LVM

Shell Scripting

Advanced automation using Bash, Python, and Perl. Building robust scripts for deployment, monitoring, backups, and system maintenance.

Proficiency 90%
Bash Python Perl AWK Sed Cron

Server Management

Complete lifecycle management of physical and virtual servers. Apache, Nginx, MySQL, PostgreSQL, Docker, and Kubernetes administration.

Proficiency 92%
Apache Nginx MySQL Docker K8s Tomcat
// career path

Professional Experience

My journey through top technology companies

Tata Consultancy Services
Linux Administrator
2025 - Present

Managing enterprise Linux infrastructure for multiple clients. Leading system migrations, implementing automation scripts, and ensuring 99.9% uptime. Handling critical production environments with 24/7 on-call support.

Cognizant Technology Solutions
System Administrator
2024 

Provided Linux administration for banking and healthcare clients. Implemented security hardening, performed regular system audits, and managed user access controls. Automated routine maintenance tasks reducing manual effort by 40%.

Amazon (Third-Party)
Junior Linux Administrator
2021 - 2024

Started career managing AWS EC2 instances and on-premise Linux servers. Gained exposure to high-scale infrastructure, load balancing, and cloud integration. Learned industry best practices from Day 1.

// projects

Key Projects

Automation and infrastructure projects I've delivered

Automated Backup System

Shell script-based backup solution with rsync, scheduling, and email notifications. Reduces backup time by 60% and ensures data integrity with Checksum verification.

Bash rsync Cron SSH

Server Hardening Framework

Comprehensive security hardening script for RHEL/CentOS. Implements CIS benchmarks, firewall rules, and automated compliance reporting.

Bash firewalld Auditd SELinux

Resource Monitor Dashboard

Real-time server monitoring using Python and Grafana. Tracks CPU, memory, disk, and network metrics with customizable alerts.

Python Grafana Prometheus Node Exporter

Migration Automation Tool

Automated tool for migrating workloads between on-premise and cloud environments. Handles data transfer, configuration updates, and rollback scenarios.

Python Ansible AWS CLI Terraform
// freelance services

Freelance Services

Professional Linux solutions for your business

Server Setup & Config

Complete Linux server deployment from scratch with optimized configuration.

  • OS installation & partitioning
  • Security hardening
  • Network configuration
  • Basic monitoring setup
Get Quote

Automation & Scripts

Custom shell scripts to automate your repetitive tasks and workflows.

  • Custom shell scripting
  • Cron job automation
  • Backup solutions
  • Deployment scripts
Get Started

24/7 Support & Maintenance

Ongoing server maintenance and emergency support when you need it.

  • Regular updates & patches
  • 24/7 emergency support
  • Performance optimization
  • Monthly reporting
Contact Me
// get in touch

Contact Me

Let's discuss your next Linux project

Let's Work Together

Whether you need server administration, automation scripts, or freelance Linux consulting, I'm here to help. Reach out and let's discuss your requirements.

Email

golisaikrishna8@gmail.com

Phone

+91 8309918583

Availability

India - Open to Remote

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