Njintieuh Sieni

Clearwater, FL *****

772-***-****

adzgjl@r.postjobfree.com

Skill Summary

Operating Systems

VMWare ESXi 5x/6x; Oracle Virtual Box; VMware Vsphere 5.5+; VMware vRealize Ops; VMware Horizon 6, 7+; Windows XP/7/8/10 Professional.

Windows Server 2008 - 2019; Linux (CentOS 6,7&8, RHEL 6,7&8);

UNIX (Solaris 10&11)

Languages

Bash, Bourne, Korn shells, PHP, HTML

Hardware

HP ProLiant DL380 Gen8/9/10, Dell PS-M4110, Dell PowerEdge 3650

Storage/Backup Technologies

SAN, NAS, LVM, SVM, ZFS, Veeam, BackupExec, NetApp

Networking

TCP/IP, LAN/WAN, DNS, DHCP, LDAP, HTTP, SSH, AD

Security/Monitoring

Databases

SSH, Sudo, RBAC, SELinux, Firewall, SSL, Tripwire, Log watch, Nagios, Red Hat OpenStack

MySQL, IBM Informix, F5 Load Balancing, Chef, Service Now

Hands on Knowledge of

Jenkins, Ansible, Chef, Puppet, LAMP, ITIL-ServiceNow, BigFix, CyberArk, Samba, Apache, Dockers,

PHP, Kubernetes, JBoss

Extra

Great team player (enjoy working with others), fast learner (eager to learn new skills and technologies) focused and dedicated to completing assigned tasks/projects.

Experience

Technical Support Engineer/Linux Systems Administrator - NS Tech Global Consulting (Clearwater, FL USA June 2020 – Dec 2022)

•Build and Configure Windows 2016 Server, Centos 7 and RHEL 7 Servers from scratch.

•Set up Client-to-server Network.

•Configure file and print sharing in Windows.

•Fix bad IP stack in Windows and Centos servers.

•Install anti-malware applications to Windows 10 NOS and Windows servers

•Configure RDP for Windows NOS systems. Open firewall port and bridge system.

•Configure and setup Oracle Virtual Box, Putty and Winscp.

•Introduce new software and technology as required.

•Introduce servers to the network. Set up a DNS server, assign static IP addresses to required systems.

•Troubleshoot and fix network related issues.

•Support software installation in the customer's deployment environment.

•Install web applications and Distribute Database Cluster solution in Centos & as per installation procedure.

•Identify and connect the SNMP enabled devices in the network.

•Debug installation errors and fix if any errors occur with the support of Accord Global Solution team in India.

•Collect the log files and share them with the Accord Global Technology Solution team in India for debugging.

•Troubleshoot, identify, and fix complex software related issues.

•Security and system management, monitoring, file security, role-based access, permission attributes and system hardening in Centos 7 and RHEL 7 servers.

•Package Management in Centos 7 & RHEL 7 servers.

•Configure a local Repo in Centos 7 server.

•Disk and Swap Management in Centos 7 & RHEL 7 servers.

•Install and configure Samba Server in RHEL8 AWS EC2 Instance.

•Install and configure Splunk Server in RHEL 7/8.

•AWS Infrastructure architect and support.

•Use Chef in AWS to automate the configuration of servers, applications, and software deployment RHEL systems.

•Build Windows Servers, RHEL and Ubuntu cloud servers.

•Enable user access and security via Putty.

•Monitor, troubleshoot and upgrade software and applications when required.

•Migrate existing workloads to the AWS cloud servers. Monitor and manage tasks and processes.

•Use F5 Load balancer monitor and manage traffic across server farms to increase productivity. Document and report any necessary updates.

•Build, configure and set up backup AWS cloud servers to save and backup database files, and to control files to avoid data loss. Restore backup and make data available in the database server. Monitor and update database servers when required. Report and document processes.

•Use puppet to configure, monitor and manage multiple CentOS7 and Windows 2016 servers simultaneously.

Network & Linux System Administrator / Cloud / IT Support Technician - CamWin LOTTO (Douala, Cameroon Jan 2019 – May 2021) REMOTE

•Provide desktop and network support to the CamWin LOTTO B2B customers. Resolve user issues like access/ logins, firewall security, network sharing, etc.

•Responsible for setup, installation, integration, monitoring, documentation, and maintenance of all Linux-based systems in a centralized IT environment, including, but not limited to; Jenzabar ERP, web, VMware, monitoring, and email.

•In collaboration with colleagues, develop strategies for effective use of cloud technologies, disaster recovery, and business continuity.

•Provide escalation- level technical support and system engineering for all Linux-based platforms.

•Configure and co-manage VMWare vSphere virtual server environments.

•Configure and co-manage iSCSI-based network storage solutions.

•In collaboration with colleagues to develop strategies for effective use of cloud technologies, disaster recovery, and business continuity.

•Creating documentation resources to aid in future troubleshooting issues, to interact with users and business partners to design solutions for current and future business problems including cloud Migration solutions.

•Installation and Configuration of the APACHE web Server on Linux platforms troubleshoot and access log files for errors and web access traffic.

•Configure and set up LAN router and switches (Verizon and MTN). Monitor the traffic and Data usage and upgrade when required. Document and send out weekly reports.

•Setup DNS server and register Domain names and IP addresses of all users.

•Monitor DHCP and assign and manage static IP addresses to required servers.

•Configure Switch for internal connectivity amongst systems within the LAN.

•Update systems built-in firewall when required. Install anti-virus, malware, and spam ware on the systems to increase the security and productivity of the systems.

•Setting up, configuring, and troubleshooting TCP/IP, DHCP, DNS; NFS, CIFS, and Samba servers in a multiplatform LAN.

•Monitoring and log management on UNIX, Linux, and Windows servers, including processes, crash and swap management, and performance tuning.

•Work closely with IT staff on integration of Linux systems into a MS Windows Active Directory environment.

•Work with Windows System Administrator on centralized system administration responsibilities, including support of MS Windows servers and Active Directory services.

•IT support representative, build, configure, provision, and maintain servers designated for telecommunication development and production analytics.

•Install and configure Splunk on RHEL 7/8 for log management.

•Use Bash shell scripting to configure Samba in Solaris 10 servers.

•Use Bash shell scripting to install and configure lamp servers in RHEL 8.

•Use Ansible Playbook to create user accounts and groups.

•TV and Multimedia software installation, configuration, monitoring, and update.

•Business Support Systems (BSS) and Operations Support System (OSS) solutions.

Multi-Platforms System Administrator/ Consultant (Beltsville, MARYLAND June 2018- Dec 2020) – TRINITECH GLOBAL CONSULTING.

•Provide tier 2/3 support to investigate and resolve problems, inefficiencies, and performance issues which will require shift work or after hours call in to meet customer SLAs.

•Creating documentation resources to aid in future troubleshooting issues, to interact with users and business partners to design solutions for current and future business problems including cloud Migration solutions.

•Provide architectural support and high-level analysis for Linux/UNIX systems and components, including Red Hat Enterprise Linux (RHEL), Oracle Solaris, and associated hypervisors.

•Configure, patch, and monitor Linux/UNIX physical or virtual servers and troubleshoot problems.

•Install, configure, and maintain server operating systems and repair server hardware

•Assists in developing recommendations for improvements and the development of technical standards

•Participate in daily scrum to improve system performance, and automation capabilities.

•Installation and configuration of Team Foundation Server (TFS) and Veritas Storage Foundation Server

•Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in RedHat Linux and Solaris.

•Writing shell scripts to automate the administrative tasks and management using cron.

•Experience in installation, configuration, backup, recovery, maintenance, and support of Several Unix/Linux and Windows Servers.

•Experience in configuration of NIS, NIS+, LDAP, DNS, DHCP, NFS, LDAP, Automate, Sendmail, FTP, remote access, Active Directory, Security management and Security troubleshooting skills.

•Analyze, troubleshooting, and resolving RHEL and Server HW, Network problems in a logistic Server environment.

•Expertise in adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environments.

•Conducted AIX / Linux System security and auditing and did Performance Monitoring and Kernel Tuning.

•Installed RHEL using kickstart.

•Deployment of various NCI web applications using Apache, Tomcat and Jboss applications.

•Providing support for NCI web applications, by upgrading, and restarting containers that are running slow.

•Created, cloned Linux Virtual Machines, templates using VMware Virtual Client and migrating servers between ESX hosts.

•Managed systems routine backup, scheduling jobs, enabling cron jobs, enabling system logging and network logging of servers for maintenance.

•Performed RPM and YUM package installations, patch, and server management.

•Installed and configured Logical Volume Manager – LVM and RAID.

•Documented all setup procedures and System related Policies (SOP’s).

•Provided 24/7 technical support to Production and development environments.

•Administered DHCP, DNS, and NFS services in Linux.

•Created and maintained user’s accounts, profiles, security, rights disk space and process monitoring.

•Provided technical support by troubleshooting Day–to-Day issues with various Servers on different platforms.

•Installing, configuring, and updating puppets master and puppets agents

•In collaboration with colleagues to develop strategies for effective use of cloud technologies, disaster recovery, and business continuity.

•Create new Ansible YAML Play-books, Roles, and bash shell scripts for application deployments. Provide Apache web server/website administration and integration support with application teams to ensure that the hosting platform can adequately and securely support the application configuration and workload.

Customer Support Representative/ Windows Systems Engineer - Saving Grace Healthcare Agency (2018 – 2020)

•Assist customers in their day-to-day activities in the production environment like creating user accounts, providing proper access, sharing folders and directories, resolving technical issues, troubleshooting desktops, updating old version software, IP related issues, etc.

•Experience in building and configuring VMware host and guest systems on Oracle Virtual Box, as well as bridging the Guest VMware systems to communicate with other physical LAN systems.

•Introduce cloud technologies to the network. Create and launch AWS RHEL6, 7, &8 Windows 2008/2012 instances.

•Build Windows/Linux servers and introduce the systems to the network.

•Responsible for assigning hostnames, static IP addresses, default gateway addresses and DNS addresses to Windows 2008 Servers to introduce them to the network. Use the “dcpromo” tool to configure DNS, Active Directory as well as to promote standard Windows 2008 servers to domain controllers. Windows 7, 8 and 10 NOS imaging and configurations and software deployment.

•Configure Windows systems for remote access.

•Troubleshoot and resolve OS, application, malware desktop related issues on various Windows NOS. Use TCP/IP troubleshooting tools to troubleshoot and resolve network connectivity and DNS related issues in the LAN. Configure Windows NOS clients to join the domain as well as configure file and print sharing on a Windows NOS to enable resource sharing.

•Service Delivery and Enablement Solutions.

Customer Care Specialist – AC Healthcare (Brandon, FL 2014 - 2016)

•Assist customers with their day-to-day operations including building servers for customers, provide proper data access, add appliances to the network, etc.

•Schedule activities for clients and documents and register daily and weekly reports.

•Configure Windows systems for clients and install required software and applications.

•Troubleshoot, diagnose, and fix systems related issues as required.

•Create cloud storage accounts to help organize clients’ documents.

Customer Care Representative – Sierra American Ventures (Tarpon Spring, FL 2013 – 2017)

•Assist customers with their daily support.

•Create user account with required permission for various users

•Troubleshoot, diagnose, and fix systems related issues as required. Upgrade OS and software as required.

•Educate and train clients and daily procedure and give assistance as required.

Windows Systems Administrator – Sphere International Company Ltd (Douala, Cameroon 2010 – 2012)

•Build Windows/Linux servers and introduce the systems to the network.

•Create and assign user accounts to specific users.

•Upgrade OS and software when required.

•Install malware to systems, monitor systems’ performance.

•Configure and set up router and switches (Verizon and MTN). Monitor the traffic and Data usage and upgrade when required. Document and send out weekly reports.

•Setup DNS server and register Domain names and IP addresses of all users.

•Monitor DHCP and assign and manage static IP addresses to required servers.

•Configure Switch for internal connectivity amongst systems within the LAN.

•Update systems built-in firewall when required. Install anti-virus, malware and spam ware on the systems to increase the security and productivity of the systems.

Desktop Support – HapiCam Cyber Café (Buea, Cameroon 2007-2009)

•Receive and attend to customers/clients.

•Register new users and assign systems and time to users.

•Clean and maintain order in the work area.

•Attend service requests from customers / clients.

EDUCATION

•Trinitech Global Institute

•Saint Petersburg College, Clearwater FL 2015-2017

•Mario International Academy

•Progressive Comprehensive High School 2000/2002

•Saint Joseph’s College Sasse -Class of 1997/1999

•Government Bilingual High school

PROFESSIONAL REFERENCE

Mr. Emmanuel Warrah

CEO of Trinitech Global Consulting

Phone number: 204-***-****

Email: adzgjl@r.postjobfree.com

Mr. Louis Robert Jarreth

Production Manager

Phone: +91-837**-*****

Email: adzgjl@r.postjobfree.com

Mrs. Brenda Manzella

Supervisor / Hiring Manager

Phone: 727-***-****

Email: adzgjl@r.postjobfree.com

Contact this candidate