Open to Linux / DevOps opportunities

Building reliable systems with Linux, DevOps & Cloud.

I’m Muhammad Khalid Khan, an RHCSA-certified Linux System Administrator with 4+ years of experience supporting RHEL enterprise environments, AWS infrastructure, Bash automation, Ansible, production support, troubleshooting, root cause analysis, and secure Linux operations.

View My Work → Practice MCQs Study Notes Contact Me

$ whoami
khalid-khan

$ role
RHCSA Certified Linux Administrator

$ focus
RHEL 6/7/8/9 • AWS • Bash
Ansible • Patching • Troubleshooting
Monitoring • Security Hardening

$ mission
Build. Automate. Troubleshoot.
Improve every day.

4+

Years Experience

90

DevOps Days

RHEL

Main Focus

About Me

A practical engineer who learns by building.

My work is centered around enterprise Linux administration, RHEL infrastructure, AWS cloud services, Bash scripting, Ansible automation, OS patching, production support, troubleshooting, root cause analysis, monitoring, and security hardening. I enjoy turning real infrastructure challenges into clear, practical workflows and repeatable solutions.

🖥️

Linux System Administration

RHEL 6/7/8/9 administration, users, permissions, services, OS patching, performance checks, monitoring, and production troubleshooting.

☁️

Cloud & DevOps Engineering

AWS EC2, S3, VPC, CloudWatch, RDS, Bash scripting, Ansible automation, CI/CD workflows, and infrastructure support.

🛡️

Reliable Operations

Root cause analysis, change management, Splunk, Dynatrace, CloudWatch monitoring, access control, and Linux security hardening.

Skills

Technical Toolbox

Tools and concepts I use to build, manage, automate, and troubleshoot infrastructure.

RHCSA RHEL 6/7/8/9 Linux Administration AWS EC2 AWS S3 AWS VPC CloudWatch RDS Bash Scripting Ansible OS Patching Production Support Root Cause Analysis VMware ESXi Security Hardening Splunk Dynatrace Change Management

Featured Work

Projects & Practice Labs

Enterprise Linux

RHEL Administration & Hardening Lab

Hands-on Linux administration project focused on RHEL 6/7/8/9, user and group management, permissions, services, OS patching, security hardening, and troubleshooting.

RHELLinuxSecurityPatching

AWS Infrastructure

AWS Operations Practice

Cloud infrastructure practice covering EC2, S3, VPC, CloudWatch, and RDS with monitoring, troubleshooting, and operational support workflows.

EC2S3VPCCloudWatchRDS

Automation

Bash & Ansible Automation

Automation-focused labs using Bash scripting and Ansible to support repeatable system administration tasks, infrastructure changes, and Linux operations.

BashAnsibleAutomationLinux

Production Support

Troubleshooting & RCA Runbooks

Real-world troubleshooting runbooks for production support, root cause analysis, performance tuning, monitoring alerts, and incident response workflows.

RCASplunkDynatraceMonitoring

Virtualization

VMware ESXi Infrastructure Practice

Practice environment for virtualization concepts, Linux server support, infrastructure engineering, and systems reliability in enterprise-style environments.

VMware ESXiLinuxInfrastructure

CI/CD Learning

GitHub Actions & DevOps Workflows

Hands-on CI/CD practice with GitHub Actions, YAML, Docker, workflow triggers, runners, jobs, steps, environment variables, and deployment automation.

GitHub ActionsYAMLDockerCI/CD

Journey

Learning Roadmap

RHEL Enterprise Administration

AWS Infrastructure Operations

Bash & Ansible Automation

Production Support & RCA

Monitoring & Security Hardening

Learning Hub

Study Notes & Practice MCQs

A topic-wise DevOps learning library with practical notes and interactive quizzes hosted directly on GitHub Pages.

📘

Study Notes

DevOps & Linux Notes

Markdown notes organized by topic for Linux administration, cron, systemd, logs, web servers, troubleshooting, and Git/GitHub.

Easy to add future notes
Topic-wise folders
GitHub Pages ready

Open Study Notes →

✅

Practice MCQs

Interactive Quiz Library

MCQ pages with answer checking, score, timer, and short explanations. Perfect for revision and student practice.

Crontab, systemd, /var, logrotate
NGINX and Apache quizzes
Expandable for future topics

Start Practicing →

Certifications

Training & Certifications

Selected hands-on certifications from Train With Shubham, focused on DevOps, AWS, Python automation, AI-assisted workflows, and CI/CD deployment.

Red Hat Certification

Red Hat Certified System Administrator (RHCSA)

Issued by Red Hat • July 31, 2025
Certification ID: 250-104-395

Verify Credential

Train With Shubham

DevOps - Zero To Hero

Hands-on DevOps training focused on practical tools, workflows, and deployment practices.

Issued: June 07, 2026
Linux, Git, Docker, AWS, CI/CD, DevOps fundamentals

Train With Shubham

DevOps 2026 - AWS DevOps And Agentic AI Masterclass

Advanced learning program covering AWS DevOps practices and modern Agentic AI workflows.

Issued: December 11, 2025
AWS DevOps, automation, Agentic AI concepts

Train With Shubham

Python For DevOps [AI Edition]

Python automation training for DevOps scripting, task automation, and AI-assisted workflows.

Issued: January 08, 2026
Python, scripting, automation, DevOps workflows

Train With Shubham

Three Tier Application Deployment With GitHub Actions

Project-based certification focused on CI/CD deployment using GitHub Actions.

Issued: May 11, 2026
GitHub Actions, CI/CD, three-tier deployment

Contact

Let’s build something reliable.

I’m interested in Linux administration, DevOps, cloud, automation, and infrastructure support opportunities.

Email Me LinkedIn GitHub