✅ ABOUT ME:
I am a Professional Full Time Freelancer. I have 9+ years of experience working on Windows/Linux server administration, CICD Devops ,AWS, Azure, windows/Linux troubleshooting, HyperV, proxmox servers, DNS records mapping, IIS, Domains and DNS records management, active directory, web server, webhosting, databases administrations and Mail server implementations, administrations for the mail services MS Office365, Gsuite, Zimbara and postfix .
✅ WHY ME?
• Full-time Professional – I work on Upwork as a full-time freelancer. I take every project seriously and I am highly professional.
• Highly responsive – I’ll always get back to you in less than 02 hours.
• 100% Client satisfaction – I provide revisions and modifications even after our contract ends.
• I provide accurate solutions and just as important, I can guide you to future prospects and put your project on the right track.
• Good communication skills – You will find me very friendly to talk to.
=========================================
#Windows Servers - clients
#Linux Server - clients
#Web servers - IIS, Apache, XAMPP, Nginx and Tomcat
#Database Servers - MSSQL, ORACLE, MYSQL, MongoDB
#Webhosting tools- Plesk, cPanel and CWP
#Cloud services providers - AWS, Azure, GCP, Digital Ocean, World stream, OVH Cloud, Hetzner and Hosting raja
#Hosting providers - Hostinger, Bluehost, Namecheap, Godaddy, Bigrock and Hostgator
#Active Directory - setup, users creation, Centralized Management, policy creation and enhanced Security
#Troubleshooting - L1, L2
Tools used
==============
Github, SVN
IIS,Apache,Tomcat,Nginx , Apache Kafka and Wordpress
SSH, RDP, VNC, Anydesk, Splashtop and screen connect
Mobaxterm,Toad,SSMS and Workbench
Plesk,WHM,Cpanel
Active Directory, IAM
Servicenow, Redmine, Microsoft Teams and Slack
Previous Clients Feedback:
1- "Karthik was an exceptional Upworker to deal with. He was responsive, communicative, knowledgeable and proactive at solving my urgent technical issue (my businesses website was down for an unknown reason) and I wouldn't hesitate to recommend him to anyone else seeking an excellent technical support specialist. Thank you Karthik!"
2- "Karthik went above and beyond to progress with a very difficult issue in a very short period of time. He is kind, hard-working, and knowledgeable."
3- "I recently had the pleasure of working with "Karthik Raja" on installing PMB Software project, and I must say it was an outstanding experience from start to finish. I highly recommend "Karthik Raja" to anyone seeking top-notch freelancing services."
4- "he provides ideas to solve our problems he is a best gem have ever met. He focused only in customer satisfaction. no negative reviews."
So why wait? Just invite me to your job on Upwork so we can discuss how to make your project a success. Let’s work together and get it done!!
Thanks,
Karthik
Gijenthira K.
Linux System Administrator
Chennai, India
$12/hr$12 per hour5.0 (1) 3 jobs $100+ total earnings
Linux System Administrator | Web Hosting Infrastructure | Server Troubleshooting
System Administrator since 2020. What started as a hobby quickly evolved into a professional career built through hands-on experimentation, infrastructure management, and troubleshooting real-world server environments.
I specialize in building, maintaining, and debugging Linux server infrastructures and web hosting environments. My experience spans across multiple hosting panels, web stacks, and self-hosted platforms, allowing me to quickly adapt to different systems and technologies.
Previously operated a hosting company (InfinitzHost – 2020 to 2023) managing hosting infrastructure, deployments, and server maintenance.
What I Can Help You With
• Linux Server Setup & Administration
• Web Hosting Environment Setup
• Server Troubleshooting & Debugging
• Website & Server Migrations
• DNS Configuration & Domain Issues
• Server Security Hardening
• Performance Optimization
• Hosting Panel Installation & Maintenance
Control Panels
• cPanel / WHM
• DirectAdmin
• Plesk
• CWP
Web Stack
• Apache
• Nginx
• LiteSpeed / OpenLiteSpeed
• MySQL / MariaDB
• PHP / MultiPHP Environments
Billing & Hosting Tools
• WHMCS
• Blesta
• Hostbill
I focus on building stable server environments, diagnosing complex issues quickly, and maintaining reliable infrastructure.
Gopal S.
IT Project Manager
Chennai, India
$30/hr$30 per hour5.0 (16) 16 jobs $300K+ total earnings
Dynamic and result-oriented professional with 5+ years of project management experience and 15+ years of IT service delivery expertise. Skilled in infrastructure management, system administration, ITSM processes, NOC operations, and data center operations. Successfully executes complex rollouts, tech modernization projects, and cross-functional initiatives. Proficient in web, banking, and telecom domains with a keen ability to implement best practices for business excellence. Offering excellent project management, multi-tasking and communication skills to coordinate multiple, concurrent projects with competing demands. Makes sound decisions in high-pressure settings and utilize analytical problem-solving skills to troubleshoot and resolve issues. Articulate communicator with strong customer service skills.
Johnson D.
Devops and Cloud solutions architect
Chennai, India
$140/hr$140 per hour4.9 (1) 2 jobs $500+ total earnings
Cloud Architect.
Have worked on almost all the major cloud service providers like AWS, Google Cloud and Azure
Linux Solutions architect
FreeBSD Solutions architect
Database architect - PostgreSQL and MySQL
OpenStack architect
Devops Engineer
IAAS, PAAS and SAAS architect
How it works
Post a job for freePost a job
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
“Upwork provides an umbrella-level of security. I can see a talent’s work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.”
KD
Kim Darling
Verified
Emerald Tiger
“Upwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.”
DM
David Merry
Verified
Kinetic Investments
“Our very specific requirements can be a challenge—With Upwork, we’re able to access a bigger community to ensure the success of our projects.”
KK
Katja Krohn
Verified
Summa Linguae
How do I hire a Red Hat Administrator near Chennai, on Upwork?
You can hire a Red Hat Administrator near Chennai, on Upwork in four simple steps:
Create a job post tailored to your Red Hat Administrator project scope. We’ll walk you through the process step by step.
Browse top Red Hat Administrator talent on Upwork and invite them to your project.
Once the proposals start flowing in, create a shortlist of top Red Hat Administrator profiles and interview.
Hire the right Red Hat Administrator for your project from Upwork, the world’s largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a Red Hat Administrator?
Rates charged by Red Hat Administrators on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a Red Hat Administrator near Chennai, on Upwork?
As the world’s work marketplace, we connect highly-skilled freelance Red Hat Administrators and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Red Hat Administrator team you need to succeed.
Can I hire a Red Hat Administrator near Chennai, within 24 hours on Upwork?
Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive Red Hat Administrator proposals within 24 hours of posting a job description.