Karthik Shetty

Systems Administrator DevOps Engineer Infrastructure Specialist Linux Enthusiast

operator/06 [T2-SEC]

system metrics

status available

tz GMT+5:30

level Tier 2 Support

karthik-shetty@outlook.com

About Me.

◆ System Admin & Tier 2 Technical Support Engineer · Mangalore, IN

I am an operations-focused systems administrator and support engineer with a strong background in server management, virtualization, and troubleshooting. Recently promoted to **Tier 2 Technical Support Engineer**, I specialize in configuring, securing, and maintaining Linux-based production servers.

I am highly passionate about moving deeper into **Linux Systems, DevOps, and Platform Engineering**. My daily operations involve service monitoring, system hardening, and writing automated health diagnostics. I specialize in diagnosing web stack configurations (Nginx, Apache, mail servers Postfix/Dovecot, DNS resolution protocols) and writing scripts in Bash and Python to automate infrastructure tasks.

Infrastructure by the Numbers

2+ Years Industry Exp

100% Linux Devoted

15+ Systems Tasks Automated

99.9% Service Uptime Focused

Functional Focus Areas

SYSTEMS

Linux Administration

Configuring disk partitions, filesystem mounts, swap space, hardening permissions, and managing web hosting server environments (Apache, Nginx, MySQL, Postfix, Dovecot).

DEVOPS

Infrastructure Automation

Developing custom health checking scripts, automating database log rotations in Bash/Python, managing container deployments via Docker, and utilizing Git version controls.

CLOUD

Cloud & Networking

Configuring secure AWS instances, administering DNS infrastructure (A records, MX, CNAME, SPF/DKIM validation), SSL certifications, and cloud backup systems.

RELIABILITY

Diagnostics & Support

Analyzing web/mail logs, tracking CPU/memory resource bottlenecks using top/htop/sar, performing packet tracing (tcpdump), and deploying application debugging layers.

Core Technology Stack

Linux Administration Bash Scripting Docker AWS Cloud Nginx Proxy Apache HTTP Server PostgreSQL MySQL DNS & Bind Git & GitHub Python Node.js React.js System Hardening

System Logs / Resume.

Jun 2026 - Present

Tier 2 Technical Support Engineer

Unifx Company

Promoted to Tier 2 escalation to handle advanced infrastructure configuration and Linux system administration issues.

Installed, configured, and hardened Linux-based production servers to maintain security compliance.
Managed high-traffic web server services (Apache, Nginx, MySQL) and enterprise-level mail servers (Postfix, Exim, Dovecot).
Performed hardware resources monitoring (CPU, RAM, Disks) and troubleshooting via command-line monitoring/diagnostic utilities.
Conducted server storage administration, including partition setups, logical volumes, disk mounts, and swap management.

Aug 2024 - Jun 2026

Tier 1 Technical Support Engineer

Unifx Company

Assisted clients in diagnosing service issues and deploying static/dynamic web environments.

Troubleshed DNS records configuration (CNAME, A, MX, TXT) and resolved domain accessibility issues.
Performed database administration tasks, database connections diagnostics, and resolved WordPress errors.
Assisted customers with site migrations, application configurations, and SSH terminal diagnostic steps.
Documented internal support workflows, escalation metrics, and troubleshooting steps.

2024 (2 Months)

PERN Stack Developer Intern

Accerlab Solutions Pvt Ltd

Built a responsive web application utilizing PostgreSQL, Express, React, and Node.js.

Implemented secure user registration, session configurations, and RESTful routing layers.
Optimized SQL database query layers and configured database relation schemas.

2021 - 2024

Bachelor of Computer Applications (BCA)

Alva's College, Moodbidri

Acquired deep knowledge of software design, computer networking, systems analysis, and database management engines.

Completed

Pre-University Course (Commerce & Stats)

Gunashree PU College, Siddakatte

Focused on accounting, business statistics, and analytical computation methods.

Linux & Operations

Linux System Administration 90%

Web & Mail Services (Nginx/Apache/Postfix) 85%

Docker Containers 75%

Bash & Python Scripting 80%

Cloud & Databases

DNS Infrastructure & Domains 90%

AWS Cloud Support 75%

SQL Databases (MySQL, PostgreSQL) 80%

Git & GitHub Version Control 85%

Featured Infrastructure & Code.

Job Search Platform

A full-stack web application connecting job seekers with employers. Features advanced search filters, user authentication, job posting management, and real-time notifications.

PostgreSQL Express React.js Node.js

Code Repository

National Insurance Care

A responsive insurance services website showcasing motor, health, and general insurance plans. Designed with a clean UI, structured content sections, and smooth interactions.

HTML5 CSS3 JavaScript

Live Deployment

Portfolio Website

A modern, responsive portfolio showcasing projects, skills, and professional experience with stunning animations and interactive elements.

HTML5 CSS3 JavaScript Canvas

Code Repository

Network Architecture Topology.

Visual representation of my typical application delivery pipeline, illustrating secure proxy layouts, automated containers, and edge rules.

System Security

Strict server logins via public keys, customized iptables/fail2ban firewalls, and isolated dynamic containers running web apps.

Scaling & Proxy

Deploying static files via fast virtual host proxies, caching files via Cloudflare WAF, and SSL handshake redirection layers.

Terminal Shell Emulator.

Karthik Shetty OS (v2.1-stable-x86_64)

System status: active | Uptime: 100%

Type help to view available terminal actions.

[guest@karthik-shell ~]$

Connect Connection Pipeline.

Console Link Request

I am always looking forward to connecting with DevOps professionals, cloud architects, and systems engineering teams. Feel free to initiate an escalation request!

Location Mangalore, Karnataka, India

Email Link karthik-shetty@outlook.com

Mobile Endpoint +91 8073602693

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