Mamadou Cellou Diallo

Linux System Administrator

ad39fk@r.postjobfree.com • 267-***-****

LinkedIn • Pine Hill, NJ, 08021

Tech-savvy and detail-oriented professional with substantial experience in installation, configuration, overall Linux systems administration, and utilization of various networking systems. Well-versed in establishing and implementing physical / virtual Unix systems and services within global Linux server farm environments. Deft at supporting windows-based environments and driving further automation / optimization in RedHat Linux server to ensure business continuity. Proficient in utilizing DevOps configuration management tools and managing AWS Cloud platform efficiently. Skilled in identifying problematic areas and driving deployment of corrective actions for resolution of complex issues. Astute at designing and implementing multiple infrastructures / migrating servers. Adept at liaising with top-performing teams for maximizing process efficiencies. Areas of Expertise

● Linux Infrastructure Support

● Integrations & Deployments

● Infrastructure Implementation

● Software & Hardware

Management

● Strategic IT Planning

● System Administration

● Process & Operations

Automation

● Data & Network Security

● Troubleshooting & Repairing

● Cross-functional

Collaboration

Technical Proficiencies

RHEL7, 8 & 9, CentOS 7,8,9, NFS; CIFS; SVM; LVM; Veritas Storage Manager; VCS Cluster; ZFS; SCP; WINSCP; Cluster Management; SAMBA; Oracle Virtual Box; Active Directory, Apache, DevOps, Linux, Unix, MySQL, SQL, Java, Agile SSH, NIS, Shell Scripting, DNS, Routing, switching, VMware, Microsoft Windows Server, RDP, File & Print Sharing, GPO, Unix/Linux Command Signal; NAS, and SAN volume mounts and permissions.

Linux Infrastructure deployment OnPrem & Cloud (AWS, Azure), creating backup of VMs and snapshots.

Managing 150+ servers (RedHat, CentOS, Ubuntu)

Experience in Solution Data Center Products design and architecture.

Managing and supporting Europe Clients on Linux environment. Accomplishments

● Installed Windows 2019 on EC2 instance / RDP and changed key pair (encrypted password) by creating new password.

● Leveraged strong technical skills to install RHEL 8 on EC2 Instance (SUDO password, EBS Volume, S3 Bucket).

● Established users’ accounts / Active Directory and converged cloud accounts with active Domain Controller.

● Spearheaded projects to perform User and Security Management in Unix/ Linux and submitted before deadline.

● Developed over 112 accounts, modified several accounts, and deleted accounts by utilizing useradd, usermod, and userdel commands, while following accounts SPECS (gid, uid, idle time, and expiration date).

● Created files / Directories and gave permission to components regarding changing default Umask Value and using Recursive mod.

● Designed user ansible playbook to create and copy files/directories, installed and configured Apache Tomcat, setup Docker in RHEL8 & Centos 8.

● Wrote bash shell script to create a container on Linux Docker, install LAMP Server, test multiple conditions, configure SAMBA, manage inventory (Solaris, Linux), search account in server, secure / prevent login session.

● Experience handling projects- completed multiple projects to deliver & Configure Linux Servers and provide day to day support.

● Worked with cross functions teams to complete projects on time.

● Accountable to complete Patching on a quarterly basis and fixing vulnerability issues timely. Career Experience

Trinitech Consulting INC., Beltsville, Maryland April 2018 – Present Unix/Linux & Windows System Administrator

Establish a multiplatform server and configure VMware host and guest systems on Oracle Virtual Box. Streamline workflow by TCPIP, DNS, DHCP, and basic Network troubleshooting while maintaining Unix/Linux & Windows

(2008, 2010, 2019) Networking Environment. Configure windows server with domain and active directory, as well as RDP / file and print sharing. Install and configure SAMBA server on Solaris 10 server, Centos 6 server, and RHEL 8 AWS EC2 Instance. Lead all facets of System Startup & Shutdown procedures and live upgrade. Utilize SVM, LVM, ZFS volume manager, and VERITAS storage foundation to perform RAID / Volume management. Oversee APACHE Web Server installation and configuration (SAMP & LAMP). Lead Configuration of Role Based Access (RBAC & SUDO), name server / client-server computing, and veritas cluster server administration (VCS).

● Utilized technical skills to install SAMBA Server on Solaris 10 server, Centos 6 server, and RHEL 8 AWS EC2 Instance.

● Authored Basic Bash Shell Scripts to automatically install packages and applications.

● Improved efficiency by installing Solaris 10, 11, the RHEL 6,7,8, and Centos 6 OS Environment for x86 Platforms.

● Configured and Managing Linux SAMBA, DHCP, MAIL clients. Ritz Carlton Hotel & Residence, USA Parking, Philadelphia, PA September 2013 – March 2018 Valet Assistant Manager

Delivered outstanding services to clients while administering all valet activities. Ensured operations and procedures complied with established rules / regulations, and safety requirements. Compiled monthly staff performance reports and maintained a database of all vehicle activities. Oversaw all aspects of daily transactions, income statements, and payroll operations.

● Addressed and investigated all complaints, damage claims procedures, and resolved accordingly.

● Assured streamlined workflow by assigning tasks to employees and monitored performance. Education & Credentials

Associate Degree in Business Administration (December 2006) Camden County College, Blackwood, New Jersey RHCA Certification (Ongoing)

Professional Training

Windows, AWS, Unix / RedHat Linux, CentOS, VMWare, and Oracle Database Administration

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