WHM/cPanel administration
Window Server / Linux Server
AlmaLinux.RockyLinux,RHEL6,7,8, CentOS 6,7,8, UBUNTU administration
Web hosting and shared hosting environments
WordPress installation, migration, troubleshooting, and optimization
DNS management and propagation troubleshooting
Cloudflare configuration, SSL setup, caching, and security features
Database management using MySQL/MariaDB
Apache, Nginx, Exim, and mail server troubleshooting
Server monitoring, backups, and system maintenance
Basic scripting and automation in Linux environments

I have been a Hadoop Cluster Admin for the past 5 years, Mainly managing our multiple Cloudera Enterprise Cluster. I have been a Linux/Unix Administrator for more than 5 years that handles OS types such as Redhat, Centos and Ubuntu.

My goal is to provide my employer client the satisfaction and quality on the job that will be assigned to me as fast as possible.
With my 13 years of experience and good knowledge of IT Infrastructure and Systems Support, I believe I can do the job well on any related things in this field.
I've been with my present employer for 2 + years and so far I can say that I'm doing my job well with promotional achievements as a Senior member of the team.
I am looking forward to working with your projects that need my expertise and I am available as you need me.

Also Knowledgeable on below skills and technologies:
Google Cloud Platform
GKE Cluster
Docker/Container
Linux Shell Scripting
Centos Web Panel
Nginx and Apache
Windows Server 2016/Windows Server 2012 R2/Windows Server 2008 R2 Windows Server 2003.
Windows 10/Windows 8/Windows 7/Windows XP
Redhat/CentOS 6,7 and 8 /Ubuntu LTS
VMware Vsphere 5,6 and 7
Nutanix Hyper-converge
Hyper-V
EMC Unity/VNX/Clariion Storage System
Dell Poweredge Servers
HP MSA Storage
IBM Storwize v7000
Nimble Storage
Brocade San Switch Zoning
Oracle 10g/11gR2/12C Administration
MYSQL Database/Maria DB
MS SQL Server
Opensource Database(Firebird)
Etc

System Administration for both Linux and Windows
Server build (Red Hat, CentOS, Ubuntu, Debian, Windows Server)
Server Monitoring Build ( Nagios, Check_MK, OMD )
Web Server Build ( Apache, Nginx, Tomcat, WordPress )
AWS EC2 instance server build / setup
Patching and Remediation ( Linux and Windows )
Managing ssl certificates, purchase and renewal

Please refer to my LinkedIn account:
-----------.----------- /in/------------------------27b7a418b/

I am an IT professional with over 10 years of technical working experience in various roles under IBM. I am a systems administrator for 5 years now and I was a technical team lead for several years, so I have strong organizational and management skills as I was able to lead several teams of systems engineer in IBM.

Reliable IT Infrastructure and System Administration professional with 7+ years of experience supporting
Linux servers, Windows Server environments, Microsoft 365, virtualization, cloud platforms, and enterprise
IT operations. Experienced in troubleshooting technical issues, remote support, server monitoring,
virtualization, VPN setup, and cloud infrastructure support.
Strong background working with BPO, healthcare, hospitality, and software companies. Comfortable
working independently, handling remote support tasks, and supporting business-critical systems.

Linux Administrator and DevOps Engineer with nearly 20 years of experience. Unique ability to bridge deep technical infrastructure (Linux, Cisco, virtualization, security) with leadership and customer-facing roles. Proven track record: 60% reduction in manual setup time via Infrastructure as Code, 100% success rate in 24-hour technical challenges, and published React Native mobile apps. Passionate about reliability, automation, and team development.

Resilient IT professional with 10 years of experience in IT operations, seeking to apply
expertise in managing IT infrastructure and supporting business systems to ensure
smooth daily operations. Experienced with network design, implementation, and
maintenance. Utilizes advanced troubleshooting techniques to resolve technical issues
efficiently. Knowledge of network security protocols and best practices ensures robust
and secure system performance.

Experienced and motivated IT professional with over 8 years of hands-on experience in customer service, technical support, and system administration. Currently working as a Linux System Administrator at Kyndryl, where I handle system setup, troubleshooting, performance tuning, and security management. I’m passionate about improving system efficiency and keeping things running smoothly behind the scenes.Previously served as a Subject Matter Expert, leading training sessions, guiding new tea-----------mbers, and acting as a go-to contact between clients and internal teams. I've supported a range of platforms including Microsoft, AS400, Mainframe, and Linux, and I'm comfortable managing complex escalations and resolving issues under pressure.Known for being a team player, a strong communicator, and someone who’s always ready to learn and take on new challenges, especially in automation, cloud tech, and leadership opportunities as I grow further into the Linux and DevOps space.

Troubleshooting and Management of Linux Servers

Detail-oriented professional with more than 10 years of experience supporting global teams in IT operations, data management, and client services. Currently a Linux System Administrator at Accenture. Strong in remote collaboration, documentation, problem-solving, and administrative coordination. Seeking a VirtualAssistant role to provide efficient, organized, and reliable remote support.

Experienced System Administrator for over 3 years, specializing in Windows and Linux/Unix systems within MSP environments. Proficient in troubleshooting, i----------- management, and IT operations, with growing expertise in cloud and infrastructure support.

Hi, I’m David Adrian Rivera, an experienced IT Specialist with over 12 years in technical support, system administration, and network setup. I’m skilled in managing Linux servers, setting up VPNs and LAN/WAN, and supporting devices like Mikrotik, Ubiquiti, Fortigate, and Cisco. I also have experience with Elastix VoIP systems, CCTV installation, and basic web development using HTML, CSS, and JavaScript.

I work well both remotely and onsite, and I’m passionate about providing fast, reliable, and secure IT solutions. I’m looking for a remote job where I can use my skills to help businesses run smoothly and efficiently.

Since 2000, I've been supporting IT infrastructure (PC Desktop, System, Network and also, Linux or Unix systems).

Web Hosting for Linux --
Cloud Servers(AWS EC2, Linode and Digital Ocean, ORACLE, Google Cloud)
Linux(Ubuntu, Debian, CentOS)
Web (Apache and Nginx)
FTP (Vsftpd)
DB (MySQL)
PHP (php, phpmyadmin, php-fpm)
Web Cache(Varnish)
File Server Sharing(Samba)
Firewall(Shorewall(IPtables) and DDOS protection(Fail2ban))
DNS(Bind) and Domain Registration
Shell Scripting(Bash, Korn and Bourne)
Automatic Schedule(Cronjob)
VPN(PPTP)
Mail(Postfix, Dovecot, Squirrelmail)
Monitoring(Nagios and Centreon, Cacti, MRTG, Icinga)
SSL(LetsEncrypt, Namecheap and Godaddy)
Troubleshooting (Critical Thinking and Problem Solving)

Others skills --

OS(Solaris,AIX,SuSe,Red Hat,FreeBSD,OpenBSD,Slackware)
File Sharing(NFS)
Firewall(UFW, CSF)
Proxy(Squid, Apache reverse)
Desktop(VNC,Gnome,XFCE)
VOIP Asterisk(V----------- and Goautodial)
RADIUS(FreeRadius)
Mail(sendmail,qmail,exim4, spamassasin)
Backup Software(Tivoli Storage Manager and Veritas Netbackup)
Project Managerment(Redmine)
Web server Management(Cpanel/WHM, Webmin,Plesk)
CRM(Siebel, Peoplesoft and Tine)
Repository(Virtual Source Safe,Concurrent Version System or Subversion and Git)
Middleware(Weblogic,Websphere)
Cloud Storage(Seafile)
CMS(Wordpress,Magento)
Amazon (RDS, Route 53, Load Balancer, LightSail, S3, CDN), Godaddy
Optimization(php-fpm, mod_pagespeed, memcached, gzip enabled)
Server Hardening, Cloudflare, Bitnami
Configuration Management (Ansible Playbook Role)

Additional Skills --
CheckPoint 2000(VPN-1/FireWall-1 Management-1)
Coldfusion Administration
Softphone(Eyebeam, Zoiper)
Symantec SAV Corporate Edition Client-Server Antivirus
Cisco, Huawei (Corporate and Home) Routers
MS Windows Servers, Exchange and Office 365
Structured Network Cabling