Amidou Konfor
Waldorf,MD
Summary
Experienced with Linux system management, including installation, configuration, and maintenance of servers. Utilizes scripting languages to automate repetitive tasks and enhance system efficiency. Knowledge of network protocols and security measures to safeguard critical data and maintain system integrity.
Overview
11
11
years of professional experience
Work History
Linux System Administrator/ Cross Domain Solution (ECDS)
cFocus Software Inc/DIA/NMEC
01.2024 - 08.2025
- I’ve worked on RHEL versions 6.9 troubleshooting both physical and virtual server issues
- Provide on-site technical and administrative support to facilitate 24/7 operations of critical.
- Mastery of Enterprise Cross Domain Solution (ECDS) infrastructure and services.
- Managing High Speed Guard (HSG) and Database Physical servers.
- Maintaining and sustaining cross domain capabilities to include interface services, dataflow management and orchestration policy enforcement, content inspection and sanitization, guard interfaces, platform administration, security, availability, monitoring and observability
- Maintenance/Patching
- Providing On-site operations and maintenance support extends to locations and/or sites where cross domain infrastructure is deployed and operationalized.
- Notify the Government Technical Point of Contact and end users of an outage & service degradation.
- Experience working with Kibana/ELK.
- Experience with Excel.
- Open Service Central Incident (INC)
- Provide hourly updates until resolved.
- Add detailed notes to the INC prior to Resolution/Closure
- Provide summary resolution status (e.g., Jabber Group Chats, etc.) within 1 hour of resolution
- Submit After Action Report
- Experience managing virtual machines and VMware ESXi
- Knowledge of Linux firewalls, networking configuration, and DNS
- Experience managing systems using Infrastructure as Code technologies such as: Salt
Linux System Administrator
Prime Tech/PERATON
04.2023 - 10.2023
- Installed and administered RHEL versions 7,9.8 and Centos 6.x/7.x on both physical and virtual machines.
- Maintain NFS, NTP, HTTP on Linux (OS) servers.
- Manage systems routine activities such as scheduling cron jobs, enabling system logging, performance tuning and testing.
- Experience in using VMWARE as a hypervisor to install virtual machines.
- Experience in the installation and configuration of patches and software packages.
- Configure log rotate to automate disk space management.
- Set up user and group login for new users.
- Enforce password changes and resolve, permissions issues.
- Install, configure Apache, and support them on the Linux servers.
- Design Firewall rules for new servers to enable communication with application servers.
- Install/configure Ansible and add nodes/playbook.
- Experience with Bare Metal servers.
- Installed and maintained Pulp, Zabbix, Grafana, Net box, FreeIPA, Visual SC, Gitlab and Foreman.
- Built Apache Web Server 2.4 on Red Hat servers/Windows Servers.
- Resolved issues resulting from vulnerability compliance scan on Linux environment.
- Did system upgrades, operating system, and periodical patch upgrades.
- Assisted in providing information on recommendations regarding configuration and installation.
- Administer 24/7 Systems running ensuring high availability of services.
- Support and monitor multi-site operations by maintaining the network, software applications, and operating systems within both private and public domains.
- Member of System Administration/Networking team that provides support to mission development/Prod systems.
Linux System Administrator
FREEALLIANCE/
04.2022 - 03.2023
- Working on RHEL versions 6.5, 7 and 8 including troubleshooting both physical and virtual server issues
- Maintain various Red Hat/CentOS Linux environments.
- Analyzing Nessus Tenable scan
- Establish key root cause analysis findings facilitating recommendations on problem avoidance.
- Perform application software installations, upgrades, and troubleshooting along with server management.
- Supported Linux servers for production, development, and testing.
- System logging, creating user accounts, managing permissions, granting Sudo rights, network logging of servers for maintenance, performance tuning, and testing.
- Install and configure NFS, and Apache using YUM and RPM
- Install and configure Ansible/playbook.
- Handle hardware upgrade, Operating System upgrade, application installation, and testing
- Process any security policy changes if needed per NIST/STIG compliance.
- ServiceNow, Incident Management/Information Technology Service Management (ITSM)
- BladeLogic/True sight automation software servers and network.
Linux Administrator
U.S POSTAL SERVICE
01.2015 - 02.2022
- Installed and administered RHEL versions 6,7 and Centos 6,7 and applied security policies to harden the server based on the company policies.
- Installed and configured Linux servers as specified by the customer.
- Troubleshoot various software issues and mix Linux and Windows environment problems.
- Responding and logging trouble tickets from emails received from customers.
- Maintain and contribute to document repository containing various troubleshooting and installation procedures.
- Performed capacity analysis and monitored disk space usage on systems.
- Set up user/group login IDs.
- Resolved network configuration, password, and permissions issues as the need arises.
- Planned and implemented system upgrades including hardware, operating system, and periodical patch upgrades.
- Involved in automation of jobs through crontab.
- Applied appropriate support packages/patches to maintain system integrity.
- Performed capacity analysis, monitored, and controlled disk space usage on systems.
- Supported Linux servers for production, development, and testing.
- Designed Firewall rules for new servers to enable communication with applications.
- Experienced using VMWARE /hypervisor to install virtual machines.
- Organized routine server maintenance and implemented.
- Identified and coordinated resolution of environment-related issues with personnel.
- Supported end users and provided basic training to new users as required.
- Communicated with application vendors for upgrades, enhancements, and technical support.
Education
High School Diploma -
SBEC
Cameroon Douala09-2008
Skills
- Linux server management
- Linux
- Backup and recovery
- Network configuration
- Log analysis
- System maintenance
- Software installation
- User and group management
- Operating system installation
- File system management
- Storage management
- System upgrades
- Shell scripting
Timeline
Linux System Administrator/ Cross Domain Solution (ECDS)
cFocus Software Inc/DIA/NMEC
01.2024 - 08.2025
Linux System Administrator
Prime Tech/PERATON
04.2023 - 10.2023
Linux System Administrator
FREEALLIANCE/
04.2022 - 03.2023
Linux Administrator
U.S POSTAL SERVICE
01.2015 - 02.2022
High School Diploma -
SBEC