Abdourahamane Barry
Brooklyn,New York
Summary
Certified Linux System Administrator with 5+ years of experience in a multiplatform environment, including hands-on experience in building servers using Kickstart, administering, and managing Red Hat Enterprise Linux 7 & 8, Centos 7 & 8. Expertise in monitoring critical parameters of applications, network, and server resources using Nagios monitoring tool. Skilled in file systems, volume and storage management, patch management, application installation, and configuration. Strong ability to troubleshoot and resolve technical issues, including processes, crash and swap management, password recovery, and performance tuning to ensure the successful operation of systems. Experienced in connecting Linux systems to Single Sign-On LDAP/Active Directory Server and virtualization (VMware ESXi, VMware Workstation Pro, Oracle VM VirtualBox, KVM). Knowledgeable in simple shell scripting and Ansible playbook for daily recurring task automation. Seasoned Linux System Administrator with 5 years successfully managing diverse distros and multi-site installations. Proficient at streamlining all scales of system architecture, from single terminals to 1000 networked servers. Expert at maintaining smooth operation of Linux-based hardware installations with dynamic performance in environments relying upon diverse operating systems. Meticulous System Administrator with experience in RHEL system and server administration. Proven skill in quickly and effectively remedying issues to bring servers back to functionality after crashes. Strong communication and interpersonal skills to explain technical concepts to non-technical audiences.
Overview
7
7
years of professional experience
1
1
Certification
Work History
Linux System Administrator
Uber Technologies Inc
01.2018 - Current
- Build, Install, configure virtual and physical servers, test, deploy RHEL 7x,8x&9 CentOS 7&8 servers to network
- Performed file system management using LVM, NAS and SAN tools
- Install and configure samba server and mapping to windows servers
- Setup, configure and troubleshoot TCP/IP, DHCP, DNS; NFS, CIFS and samba servers in a multiplatform LAN
- Automated task using bash shell script, and ansible in a multiplatform
- System administration including configuration of server-based systems, system installation and configuration fundamentals of security, and installing third party software
- Ensuring that SELinux and Firewall securities are enforced to prevent intrusions and hacking
- Track and complete assigned tasks via ServiceNow ticketing system
- Archive, compress, unpack, and uncompressing using compression tools bzip, tar and gzip
- Virtualization (VMware ESXI, Oracle Virtual Box, and KVM)
- Configure key-based authentication for SSH
- Monitoring event logs and any alerts generated by intelligent network monitoring systems and taking immediate remediation action when an issue is discovered
- Management and troubleshooting of the network elements
- Configure network binding and assign IP addresses to new stations in the building
- Experience with monitoring log management on Linux servers including processes, crash, and swap management, with password recovery and performance tuning
- Configure network binding and assign IP addresses to new station in the building
- Performed user accounts administration
- Managed Password aging configuration on servers
- Stayed up-to-date on the latest developments in Linux technologies and best practices, sharing knowledge with team members to continuously improve processes and systems.
- Resolved complex technical issues promptly by leveraging strong troubleshooting skills and root cause analysis techniques.
- Resolved vulnerabilities by making improvements to network security.
- Interacted directly with users to diagnose and correct major system issues and address concerns.
- Reduced downtime during planned system upgrades, maintaining seamless user experiences through thorough testing and rollback planning.
- Tuned system performance to optimize efficacy of new and existing hardware components.
- Ensured high availability of critical systems by proactively monitoring server health and addressing potential issues before they escalated.
- Collaborated with cross-functional teams to integrate new applications into existing infrastructure, ensuring smooth deployments and optimal performance.
- Improved system performance by optimizing Linux server configurations, implementing efficient backup processes, and performing regular maintenance tasks.
- Conducted regular audits of system logs to identify potential vulnerabilities or unauthorized activities within the IT environment.
- Provided hands-on support for end-users experiencing issues with Linux-based systems or applications, facilitating quick resolutions and minimal disruptions to productivity.
Linux System Administrator
Grub Hub Inc
09.2017 - 01.2018
- Installed and configured Linux systems and servers
- Performed system maintenance and deployment
- Monitored system performance, create system backup
- Configured key-based authentication for SSH
- Setup, configured, and troubleshot TCP/IP, DHCP, DNS; NFS, CIFS
- Troubleshot Red hat Enterprise Linux 7 & 8 issues in hardware and software related and configuration issues
- Performed security hardening on dedicated servers by patching servers and turning off unused services
- Basic working knowledge of LDAP and active directly by binding the member server to the LDAP server
- Installed and maintained the operating system and related software products
- Successful in resolving customer issues through troubleshooting
- Stayed up-to-date on the latest developments in Linux technologies and best practices, sharing knowledge with team members to continuously improve processes and systems.
- Ensured high availability of critical systems by proactively monitoring server health and addressing potential issues before they escalated.
Education
Baccalaureat of Science -
Lycée Kipe
Conakry01.2010
Skills
- Red Hat Linux
- CentOS
- Ubuntu
- TCP/IP
- NFS
- SSH
- DNS
- DHCP
- CIFS
- Linux Administration
- Configuration & Troubleshooting
- System Monitoring
- Scheduling & Patching
- VMware
- VMware Workstation Pro
- Oracle VM
- KVM
- Bash Shell Scripting
- Linux Server Management
- Linux
- Backup and recovery
- Server Management
- Hardware troubleshooting
- Network configuration
- Linux Kernel Understanding
- Log Analysis
- System Maintenance
- Disk Space Optimization
- System monitoring
- Web Server Administration
- User and Group Management
- Software Installation
- Task automation
- User Account Management
- Virtualization Technologies
- Configuration Management
- Package Management
- System Performance Tuning
- Samba proficiency
- Debugging networks
- Security management
- SSL Certificate Management
- Remote Access Management
- Performance Tuning
- Skilled in Apache
- Multi-User System Management
- Nagios monitoring software
- Systems Budget Management
- Operating system installation
- Server monitoring
- Skilled in Samba
- File system management
- Storage Management
- Server maintenance and management
- Apache proficiency
- Debugging network configuration
- System updates
- Network Administration
- Program installations
- Network Troubleshooting
- Server maintenance
- Patch management
- Virtualization
- Server improvements
- New program installations
- Hardware and software installation
- Web Security
- Linux Certification
Certification
Red Hat Certified System Administrator, https://rhtapps.redhat.com/verify?certId=220-121-636
Locations
- Brooklyn, NY, 11225
- 3317 Graceland Ave, Indianapolis, IN, 46208
Timeline
Linux System Administrator
Uber Technologies Inc
01.2018 - Current
Linux System Administrator
Grub Hub Inc
09.2017 - 01.2018
Baccalaureat of Science -
Lycée Kipe
Red Hat Certified System Administrator, https://rhtapps.redhat.com/verify?certId=220-121-636
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