● Steering efforts for database replication, migration, security, debugging, and repairing database tables ● Addressing EC2 instances, Elastic IP, EC2 Auto Scaling, LightSail, Amazon Elastic File System, S3 buckets, Glacier, RDS, VPC, Route 53, ELB, and AWS Storage Gateway ● Managing Mysql database backups and retention. ● Troubleshooting/monitoring/hardening in Linux Web Server Environment ● Installing & configuring Windows / Linux server ● Monitoring all servers on daily health check-ups; conducting performance monitoring (CPU, memory, and disk space) and using Nagios and reporting/correcting issues ● Working with and troubleshooting SMTP, POP, IMAP, FTP, SSL, HTTP, HTTPS, Telnet, DNS, RDP, TCP, SIP, and RTP ● Performing regular application installations, configurations, and day-to-day administration, patches, and hotfixes deployment on Servers/VMs/Instances/Containers ● Configuring user accounts, user policies, user security, maintaining User Access Accounts, and configuring Group Accounts, Group Policies in respective environments ● Configuring firewall and implementing security, hardening on server/network ● Deployment and Installation of Openstack, Asterisk, WordPress, Zabbix, Elastic stack, Wazuh, Pritunl VPN, and OpenIAM or FreeIPA (identity and Access management tool) ● Worked as System Admin L2 Server Support with Internal User Support ● Configured & installed LAMP Stack, Asterisk Servers Cluster, Active Directory, DNS, DHCP, File Server, and Print Server ● Configured User Accounts, User Policies, and User Security