Ahmed Abdelwahab

Philadelphia, PA 267-***-**** adpo9e@r.postjobfree.com

Career Profile

A Linux System Engineer with over 5.4 years of experience in enterprise infrastructure support and operations. Extensive experience and knowledge in provisioning, maintaining and deploying applications across RHEL (6 & 7) servers, in addition to implementing automation tools throughout development, testing, staging, and production environments.

Career Highlights

Extensive knowledge and hands-on experience in a wide array of technologies and environments.

Automated the process of deploying and configuring new virtual machines using an Ansible playbook.

Collaborated with team members to ensure providing 24/7 support for mission critical environments, in addition to accomplishing goals and projects set by senior management.

Expertise in installing, configuring, integrating, backup, upgrading, patching, tuning, crash recovery/prevention, monitoring system performance, and troubleshooting any issues in Linux servers.

Work Experience

DuPont, Delaware March 2016 - Present

Linux System Engineer

Responsibilities:

Installation, configuration, maintenance, and patching of Linux systems on VMware ESXI 6.5.

Monitoring systems performance activities like CPU, memory, swap and disk usage to ensure efficient performance, in addition to avoiding future issues.

Extensive Knowledge in installation, configuration, management and troubleshooting of VMware ESXi 6.5 - 4.0, vSphere 6.0, 5.5, and older and different versions of vCenter server.

Hands-on experience with vMotion, Storage vMotion, High Availability (HA), Fault Tolerance (FT), DRS, Storage DRS and Snapshots.

Applied OS patch and upgrade in a multi-platform (RedHat/CentOS) environment on a regular scheduled basis.

Developed bash scripts for backups and scheduling tasks.

Automated tasks through Cron jobs and Ansible.

Day to day administration and management of servers, applications, and file systems.

Setting up and installing monitoring tools to monitor server health on a day-to-day basis.

Implemented LVM, creating and extending disk partitions, setting up file systems and mounting/unmounting them.

User and group management and support.

Experience in Ansible configuration/deployment and wrote Ansible playbooks to manage environments configuration files, packages, users, mount points, web applications.

Administrating and maintaining source control management system through Git. Created branches, tags, fixed merge issues, and managed Git repositories.

Installed, configurated, maintained, and troubleshooted enterprise-wide Apache web servers

Developed and troubleshooted issues related to networking, NIS, NFS, SAMBA, SSH, SFTP, DNS, DHCP.

Troubleshooting network related issues and problems and collaborated with networking admins to set up, configure, secure, and implementing slave replication on DNS BIND servers.

Performed collaborative root cause analysis to resolve network and software issues in production environments.

Installed, updated, and configured packages using RPM and YUM package management.

Configure and troubleshoot connection to SSH through SSH clients, set up password-less and agent forward for SSH.

Created and edited Standard Operating Procedures (SOP) and documented various performed tasks.

Resolved tickets according to priority basis related to OS / Hardware that meet our team’s requirements set by our Service Level Agreement (SLA).

Participated in 24/7 on-call support personnel for debugging or resolving issues.

Managing users and groups though a centralized directory for authentication.

Configured storage using partitions and logical volumes.

Operated running systems included

Adhered to security team recommendations such as file wall configuration, customizing ports for various services and application, and others.

Knowledge of Cloud Computing concepts such as IaaS, PaaS, and SaaS.

Worked on most of the AWS computing foundational services EC2, IAM, VPC, and AMI.

Experience in S3 buckets and writing policies for S3 buckets, in addition to utilizing Amazon Glacier for backup storage.

Launching AWS EC2 cloud instances and configuring launched instances according to required specification.

Setup and configure S3, EBS storage and Cloud watch.

Managing access and authentication of users through IAM.

St. Christopher's Hospital for Children, PA Nov 2013- Feb 2016

Linux Technical Support

Responsibilities:

Deploying, provisioning, and monitoring RedHat (5 & 6).

Hardware and software installation.

Troubleshooting software and hardware incidents.

Liaison with third party suppliers and hardware & software support.

Provided training and presentation to new employees and interns.

Setting up new machines for new hires and preforming Linux PXE boot installations.

Provided technical support to hospital staff members.

Microsoft Office installation and troubleshooting including network cabling.

Monitored systems performance using Nagios and resolved issues and incidents.

Providing user support and assisting them in resolving problems they are experiencing.

Assisted in training new team members and familiarizing them with our environment and Linux OS.

Skills & Competencies

Operating System: Linux, Red Hat/CentOS (5, 6, 7)

DevOps: Ansible, GIT, AWS, Bash Scripting.

Storage Devices: SAN, NAS

Protocols: TCP/IP, HTTP, SSL, SNMP, SMTP, FTP, SSH.

Web Servers: Apache/TOMCAT Web Server Administration

Networking Services: NIS, NFS, AutoFS, DNS, SSH and Send mail.

Hardware: HP, Dell, Cisco Switches

Application Servers: NFS, NIS, SSH, FTP, Apache, YUM, RPM, Kickstart

Tool: Nagios, vSphere, vCenter

Network: DHCP, DNS, TCP/IP, UDP, LDAP, VLAN, TCPdump

File Systems: Ext3, ext4, xfs. LVM, Raid

Data Base: MySQL

Education

Bachelor of Science, Temple University.

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