Koffi Agbossou

Experienced Linux System Administrator with 5 years of hands-on expertise in managing, troubleshooting, optimizing Linux based systems and in depth knowledge of Windows systems. Proficient in administering diverse environments, including servers, and virtualized infrastructures. Skilled in shell scripting, automation, and implementing security measures to ensure system integrity and confidentiality. Proven ability to streamline processes, enhance performance and mitigate risks through proactive monitoring and maintenance.

NOAA 

Weather & Climate Computing Infrastructure Services 

08/2022

Linux System Administrator II

• Provide Red Hat Linux Enterprise Operations & Maintenance (O&M) support activities
• Develop, troubleshoot, and execute Ansible playbooks throughout the enterprise using Ansible Automation capabilities
• Deep understanding of Linux operating systems (i.e. Redhat, CentOS, Ubuntu, Oracle Linux, etc.)
• Authored, implement, and enforce processes and SOPs for O&M and incident response
• Manage and maintain Linux server infrastructure, ensuring optimal performance and reliability
• Experience with HPC systems 
• Proficient in Linux system administration with a focus on Red Hat (3+ years of experience)
• Familiarity with IT Operations Monitoring Tools such as CheckMK, Big Brother
• Experience utilizing VMware to troubleshoot and manage Virtual Server environments
• Executed routine system updates, patch management, and system optimization
• Orchestrated configurations  and troubleshooting software and application 
• Strong hands-on experience with Linux, Windows, Active Directory, VMWare
• Monitor system health and configurations to ensure system health and functionality as well as remediate problems/issues in a timely manner
• Scripting skills (e.g., Bash, PowerShell, Python)
• Experience in configuring, installing server/workstation(s) using Foreman and Red Hat Satellite 6
• Leveraging Gitlab and Ansible playbooks for operational changes
• Install applications (COTS/GOTS) and perform system upgrades & migrations
• Gained proficiency  with monitoring tool such as Big Brother, CheckMK configuration for newly built systems
• Create and manage cron jobs running automated processes across the infrastructure
• Implement and enforce security best practices for both Linux systems and workstations 
• Experience supporting and maintaining network storage (Netapp)
• Proficiency in vulnerability assessment tools (Tenable Nessus, Qualys etc.), analyzing and interpreting the vulnerability assessment results
• Managing user accounts, via, AIX, Akamai, IDM, Grafana, permissions or local accounts
• Resolving problems for all in house software such as , Nvidia, Tectia, CAC VPN
• Leverage Red Hat Satellite 6 to create newly built systems with subscriptions 
• Able to partition disks, create logical volumes, create file systems and mount file systems
• Be a customer advocate by consistently meeting, exceeding expectations and incorporating customer service into all aspects of work

LTN Global Communications

Linux Support Engineer I

12/2021- 08/2022

• Track and input support via Confluence
• Knowledge of  Linux administration/engineering using RHEL6/7, CentOS
• Zendesk experience
• Strong experience with Linux Administration and troubleshooting 
• Extensive troubleshooting on Red Hat Linux 7 OS, accessing customer servers
• Creating multiple tunnels (port forwarding) to connect to customer interfaces to access, IRDs(Integrated Digital Receivers), CISCO routers, and switches
• Defined user roles, permissions, and policies across all company software
• Provisioning and activating customers sites such as CBS, NBC, NFL, ABC, YOUTUBE, and FOX to name a few
• Transporting or delivering encoded video from the LTN Cloud through the destinations ISPs, NM protocol
• Updating client's DNS servers to ensure connectivity 
• Configuring sites as OU(occasional) or linear(full-time)
• Provide technical support to end-users, assisting with software installations, hardware setups, and general troubleshooting
• Troubleshooting Database/MariaDB connection issues
• Ability to write simple MYSQL queries to retrieve and /or update data from Database
• Act as an escalation point for the help desk team, providing guidance and expertise in resolving complex technical issues
• Troubleshoot and resolve hardware, software, and network problems in a timely and efficient manner, while utilizing appropriate diagnostic tools and techniques
• Network Management and monitoring including SNMP, Syslog, Wireshark, Packet traces and analyzers, troubleshoot connectivity with service providers, vendors and partners
• Create and maintain documentation of system configurations, processes, and procedures to support knowledge sharing and future troubleshooting efforts
• Experience with enterprise-level hardware, such as servers, storage systems, and networking devices

Excell - Truist

IT Support Specialist I

09/2021 - 12/2021

• Conducted tier 2 desktop and troubleshooting/support
• Active Directory administration
• managing/updating incidents via Service Now
• Taking/placing calls via cisco connect, amazon connect, or jabber
• Experience supporting Office 365 in a multi-user environment, including but not limited to converting accounts
• Experience with bit locker-related issues such as pin reset and generating boot keys for driver encryption 
• Experience using SCCM to install applications on end-user pcs
• Provide written updates for problem resolution in, knowledge bases, troubleshooting manual(s) and procedures, or online documentation repository
• Familiar with imaging and installation of apps
• Working knowledge of operating systems - Windows 10
• Knowledge of network concepts such as TCP/IP, routing and switching, Wireless, DHCP, DNS, and VPNs
• Server application administrator experience supporting MS Exchange server, MS Skype for Business, MS SharePoint
• Experience with VMware Vcenter, managing VDI-related issues
• Understanding of PowerShell scripting/command prompt
• experience with computer systems support, Office365 Administration and
• license management, SharePoint Administration and support, and basic network
• administration.
• Thorough working knowledge of Microsoft Office 365 and Windows Operating Systems.
• Experience with Windows 7, Windows 10, Windows Server, iOS, and Android Platforms.
• Experience installing software, patches and updates on desktops, Laptops and Servers.
• Hands-on experience with imaging and deployment and/or support of client systems

Amazon FC

IT Support Tech II

06/2020-10/2021

• Using (ACME) Amazon Client Management Engine for updates and compliance
• Arranged work orders via Remedy/TT
• Ability to utilize the Microsoft Office Suite, especially Quip and Word, to create documentation
• Assist and coordinate with all support tiers as necessary to support project/task execution or with any escalated user requests or incidents
• Follow and utilize established and documented policies, training documents, and Standard Operating Procedures (SOPs) to ensure service is delivered acc
• Took part in a migration project V1 to V2 to achieve high availability and performance
•  SCCM experience for Windows imaging, installing software, updates
• Using Command prompt to resolve quarantine issues, network connectivity, or printer issues
• Monitoring network metrics and performance with Nagios 
• Troubleshooting of printers, time clocks, and telephony connectivity
• Replacing hardware such as ram, hard drives, keyboards, screens, or shell swap
• A willingness to document problem resolution sufficiently to allow a co-worker to understand the problem and resolution to the problem
• Ability to guide and prioritize support requests from different employee groups and via different delivery methods 
• Understanding of support tools, techniques, and how technology is used to provide IT services

Entership 

Full Stack Network Engineer

06/2018 - 06/2020 NGT Academy 

Red Hat Linux System Administrator/Engineer

02/2020 - 06/2021 Epichir Technology 

Bachelor Degree 2012

Criminal Justice - Sociology