Abdelkader Ismail

Linux System Administrator with expertise in server management, container orchestration, and network infrastructure

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About Me

Experienced Linux Administrator skilled in managing 100+ RHEL/CentOS servers across dev, staging, and prod environments. Proficient in container orchestration (Docker/Kubernetes), CI/CD pipelines (Jenkins), and automation (Ansible, Bash, Python).

My expertise includes system monitoring (Prometheus/Grafana), security hardening, patch management, and AWS infrastructure (EC2, S3, RDS). I'm adept at troubleshooting, performance optimization, and ensuring 99.9% uptime.

With a background in both systems and network administration, I bring a comprehensive understanding of IT infrastructure to every project. I'm passionate about automation, security, and building robust, scalable systems.

Technical Skills

Linux Administration

RHEL/CentOS Server Management
System Hardening & Security
Performance Optimization
Patch Management
User Access Control

Container Technologies

Docker Containerization
Kubernetes Orchestration
Container Security
Microservices Architecture
Container Registry Management

Network Administration

VLANs, VPNs Configuration
Routing Protocols (OSPF, BGP)
Firewall Management
IDS/IPS Implementation
SD-WAN Solutions

Automation & CI/CD

Ansible Automation
Bash & Python Scripting
Jenkins Pipeline
Infrastructure as Code
Automated Testing

Cloud Infrastructure

AWS (EC2, S3, RDS, VPC)
Cloud Security
Cost Optimization
High Availability Design
Auto Scaling

Monitoring & Logging

Prometheus/Grafana
Nagios & SolarWinds
ELK Stack
Log Analysis
Performance Metrics

Work Experience

2023 - Present

Linux System Administrator | TSN Academy

Managed 100+ Linux servers (RHEL/CentOS) across dev, staging, and prod environments
Orchestrated Docker/Kubernetes apps, ensuring 99.9% uptime
Built CI/CD pipelines with Jenkins, cutting deployment time by 40%
Set up Prometheus/Grafana for monitoring and alerts
Automated tasks with Ansible, Bash, and Python
Handled user access, security compliance, and system hardening

2022 - 2023

Network Administrator | TSN Academy

Managed 100+ network devices (routers, switches, firewalls) across multiple locations
Configured and maintained VLANs, VPNs, and routing protocols (OSPF, BGP)
Monitored network performance using tools like Nagios and SolarWinds
Implemented and managed network security measures (firewalls, IDS/IPS)
Automated network tasks with Python and Ansible
Troubleshoot network issues, ensuring 99.9% uptime

Featured Projects

Kubernetes Cluster Migration

Migrated legacy applications to a containerized environment using Kubernetes, improving scalability and reducing deployment time by 60%.

Kubernetes Docker CI/CD Microservices

Automated Infrastructure Deployment

Implemented Infrastructure as Code using Ansible and Terraform to automate the provisioning and configuration of 50+ servers.

Ansible Terraform IaC Automation

Network Security Enhancement

Implemented a comprehensive network security solution including firewalls, IDS/IPS, and VPN, reducing security incidents by 75%.

Network Security Firewalls IDS/IPS VPN