SUMMARY:

• Experienced Red Hat Enterprise/CentOS Linux 4/5/6/7, VMware ESXi 3/4/5/6, AWS, DevOPS Systems Engineer with over 7 years of experience in Engineering and Operational Based Technical Support to assist and provide clients with the best possible uptime and to reliable and accurate communication to get tasks completed.
• Expertise in deploying various Red Hat Enterprise Linux/CentOS builds both Physical and Virtual on HP/CISCO/Dell Hardware running ESXi utilizing Satellite and Ansible servers.
• Expertise migrating 600+ RHEL Servers to CentOS as part of a cost reduction/server refresh project while maintaining maximum uptime.
• Expertise in running scans with Nessus/Qualsys to generate vulnerability reports and fix all vulnerabilities on servers before pushed into production.
• Experience in migrating the entire UNIX (Solaris/AIX) environment to SUSE 11.1/11.2, RHEL 5.6/5.7/6.1/6.3/7.0/7.1 as part of the refresh project.
• Experience in migration of On - Premises RHEL and Windows servers to cloud platforms including AWS EC2 and Azure.
• In-depth knowledge on Amazon EC2, S3, Simple DB, RDS, Elastic Load Balancing, SQS, and other services in the AWS cloud infrastructure such as IAAS, PAAS and SAAS.
• Experience in building CI/CD pipelines for application platforms and micro-services both on-premises and cloud using AWS and Ansible, Jenkins,
• Configured AWS IAM and Security Groups in Public and Private Subnets in VPC.
• Worked on deployment of complex infrastructure using AWS CLI and AWS Console.
• Created cloud front for accelerated delivery of websites, APIs and content by routing the traffic using Route 53.
• Experience in configuring and implementing various AWS components such as Elastic IPs, EBS, ElastiCache, Elastic Beanstalk, DynamoDB, Redshift and Cloud Formation.
• Expertise with Docker, Docker Swarm and Kubernetes installation to implementation.
• Expertise with Docker hub, images, containers and Docker architecture.
• Expertise in Docker storage, networking, cloud, logging, compose and continuous integration.
• Experience working on Docker with Kubernetes and Docker Swarm.
• Experience with data collection and monitoring for systems, storage and network using collected or telegraf, storing data in InfluxDB, Prometheus, displaying with Grafana
• Expertise in automating Grafana dashboard creation with Ansible and generating Reports
• Experienced with OpenShift application scaling, OpenShift administration, OpenShift handling Docker and Kubernetes and OpenShift Security Context Constraints (SCC) and service account.
• Expertise in Ansible Playbooks, Ansible Roles, Variables and Advanced Execution.
• Experience is using Apache HTTPD, Tomcat, JBOSS, WebLogic and WebSphere Application servers for Application deployments.
• Experience performing JBoss/WebLogic/Tomcat/Apache (LAMP) Application Server Administration and Oracle 11g tasks such as installation, configuration, monitoring and performance tuning to create a 3-tier application suite.
• Experience in configuring JVM heap configuration, thread pool and JDBC configuration to performance tune java applications running on JBoss, Apache, Tomcat and Oracle RAC/ASM file systems.
• Experience in analyzing Memory Leaks, JVM heap settings and tuning in JBoss, Tomcat Application Server.
• Experience in CentOS/RHEL Server provisioning, Upgrades, Patching, Configuration and Performance Tuning in Linux, and VMware environments.
• Expertise in designing build/configure documentation related to Red Hat Enterprise Linux via Spacewalk/Satellite/Kickstart/Puppet/Cobbler/Ansible servers.
• Expertise in advanced features of ESX/ESXi 4/5/6/6.5, vMotion, Storage vMotion, HA, DRS, and Update Manager.
• Expertise in the area of Virtualization with Installation, Configuration and Administration of VMware ESXi 5.0/5.1/5.5/6.0/6.5 and vCenter Server 4/5/6/6.5.
• Excellent Bash/Korn/Perl Scripting knowledge for automation of the entire UNIX Infrastructure.
• Experience building a presentation to present the design of hosting architecture on Amazon EC2 public/private clouds to deploy all the VM’s.
• Expertise in migration VMware ESXi hosts/vCenter and VMware Update Manager by consolidating legacy datacenters to newer datacenters.
• Expertise in Installation, Configuration, Integration, Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network/OS Security and Troubleshooting of Unix Servers.
• Expertise in creating bash/perl scripts to perform change control automation, close the security ports and assist with daily duties for help desk teams.
• Experience setting up IT AUDIT controls, protecting information assets, to meet ITIL, SOX, HIPAA, PCI compliance standards.

TECHNICAL SKILLS:

Operating Systems: Red Hat Linux 6.x/7.x, VMWare vSphere 5.x/6.x, ESXi 5.x/6.x, AIX 7.1/6.1, Windows, Amazon EC2/CloudFormation/Route 53/CloudWatch/SNS/SQS/ELB/Kinesis, Ubuntu 17.x/18.x

Configuration Management and Performance Monitoring Tools: Ansible, Chef, Puppet, Nagios and Splunk.

AIX Technology: VIO, LPAR/DLPAR, HMC, HACMP

Commercial Software: VMware vSphere, MS Office, Outlook, Microsoft OneDrive

Database: Oracle, DB2, MySQL, AWS RDS

Problem/Change Management: Remedy, Service now, Jira

Storage/Backup Technology: EMC VMAX, Confidential, Isilon NAS, Pure Storage, Amazon S3/EFS/EBS/S3 Glacier

PROFESSIONAL EXPERIENCE:

Confidential

Red Hat Enterprise Linux/DevOPS/Cloud Engineer

• Installed and configured several thousand Red Hat Enterprise Linux 5/6/7, CentOS 5/6/7 Servers in both CISCO UCS and HP C-7000 Physical Blades and VMware ESXi Virtual Environment.
• Setup and Configured Red Hat Satellite and Foreman/Kickstart Servers for Red Hat Enterprise Linux/CentOS 5/6/7 installs, maintain repositories and leveraging Ansible for patching cycle across all environments (DEV, STAGE, and PROD) both on-prem and AWS/Azure.
• Involved in the non-functional design reviews, Develop, automate and implement operational best practices for Amazon Web Services and on-prem.
• Used Ansible and Terraform as DevOps tools and Git as SCM tool to automate the deployment of infrastructure.
• Managed different on-premises infrastructure resources including Cisco UCS, HP C7000, VMs and even Docker containers and different Cloud service providers like AWS and Azure.
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding SAN storage and help create ASM File Systems.
• Perform break-fixes and work maintenance windows as well monitor alerts and logs to ensure maximum uptime.
• Experience and knowledge of Agile/Scrum development, especially Continuous Integration with Jenkins
• Automated CI/CD pipeline infrastructure and Deployed micro services applications using Ansible, Docker and Jenkins.
• Hands on experience on Terraform a tool for building, changing, and versioning infrastructure safely and efficiently.
• Worked with Terraform key features such as Infrastructure as code, Execution plans, Resource Graphs, and Change Automation
• Run scans with Nessus/Qualsys to generate vulnerability reports and fix all vulnerabilities on servers before pushed into production.
• Developed Docker containers infrastructure and Continuous Integration for building & deploying Docker containers and Excelled on creating AMI (Amazon Machine Images) that utilizes ELB (Elastic Load Balancer) and Auto Scaling.
• Created images stored leveraging Docker, Docker Compose and setup and built internal Docker Registry.
• Developed procedures to unify streamline and automate applications development and deployment procedures with Linux container technology using Docker swarm.
• Used Jenkins and pipelines to drive all microservices builds out to the Docker registry and then deployed to Kubernetes, Created Pods and managed using Kubernetes
• Building/Maintaining Docker container clusters managed by Kubernetes, Docker Swarm and leveraging Kubernetes and docker swarm for the runtime environment of the CI/CD system to build, test deploy.
• Configuring IAM roles for EC2 instances and assign them policies granting specific level access to S3 buckets by customizing JSON template Designed Stacks using Amazon Cloud Formation templates to launch AWS Infrastructure and resources.
• Used IAM to create new accounts, roles and groups.
• Being On-Call to provide L2 support to IAM applications on AWS cloud infrastructure
• Managing IAM accounts (with MFA) and IAM policies to meet security audit & compliance requirements.
• Used Auto-scaling and Elastic Load Balancer features on EC2 instances to serve the end users using applications during unexpected traffic/demand.
• Applying company security policies using Security groups and Network ACLs for instance and subnet level security as per project requirements.
• Configuring IAM roles for EC2 instances and assigns them policies granting specific level access to S3 buckets.
• Leveraged Ansible and Ansible Tower by creating multiple playbooks to manage Web Apps, OS Files, DB, Commands, Mount Points, and Packages
• Provide 24/7 support to Middleware application servers (Weblogic, Tomcat, JBoss), Webservers (Apache, IIS) and Database servers (Oracle RAC, DB2, MS SQL, MySQL).
• Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes (LVM’s).
• Provide support to the Dev teams to help develop, troubleshoot Java based applications on JBoss Application Server and Oracle Weblogic.
• Deployment of Java Applications using WebLogic/JBoss/Tomcat Application Server.
• Installation, Configuration and Administration of VMware ESXi 5.0/ Virtual Center 5.0, vCenter Servers as well as upgrading to ESXi 5.5/6.0/6.5 and Virtual Center 5.5/6.0/6.5.
• Analyze Memory Leaks, JVM heap settings and tuning in JBoss, Apache, Tomcat Application Server.
• Leveraged JIRA and BugZilla for bug tracking and to maintain and meet agile requirements.
• Leveraged multiple monitoring utilities such as Prometheus, Grafana, Telegraf, Nagios and vROPS for reporting and alerting.
• 24/7 on-call responsibility for all aspects of a 15 petabyte, multi data center, storage environment, including CommVault, NetBackup, EMC Networker, Data Domain, Avamar and Oracle (RMAN) backup environments.
• Configuring and Administering SSH, SFTP, HTTP, SMTP, NFS, DNS, NIS, NIS+ and LDAP on RHEL server environment.

Confidential

Red Hat Enterprise Linux Administrator

• Provide on-call support for Unix/Linux servers.
• Support and troubleshot SDM platform.
• Create new servers, deploy patches, and support end-to-end.
• Support QA testers and software developers in lab/production environment
• Experience working with Ubuntu.
• Support multiple systems and applications.
• Create brand new servers, deploy patches, and support end-to-end.
• Utilize the following technologies: Nagios for monitoring, ticketing tools, and Servicenow.
• Administered performance analysis using tools like Nagios, prstat, mpstat, iostat, sar, vmstat, truss, Dtrace.
• Root cause, triage analysis and problem management of migration processes and failures.
• Responsible for granting UNIX access to cleared users, sudo permissions; ensure integrity and protection of customer's data.
• Installed and maintained EMC Symmetrix VNX/VMAX storage and CISCO MDS Switches for LUN masking and Zoning to OEL/RHEL/Solaris Physical servers.
• Create and Setup monitoring bash shell script to monitor system resources, logs, disk usage, scheduling backups and restore.
• Preserved OEL/RHEL Servers integrity and 99.99% ‘up time’ to minimize any negative impact to clients’ business

Confidential

SYSTEM ADMINISTRATOR

• Installed and configured RHEL7.x systems in large scale VMware virtual environment and Amazon cloud.
• Installed custom software and application on various systems.
• Upgraded RHEL servers to latest release and applied RHEL OS enhancement and bug fixes as per business needs.
• Experience in applying security patches and updating Redhat Linux OS version using Red Hat Satellite server
• Configured LDAP Client on Linux machines for authorization and authentication.
• Plan and implement project tasks on Linux servers and new deployment according to scheduled timeline.
• Taking snapshots in the VMware environment.
• Experience in using VMware vMotion to move VM’s from one datacenter to another datacenter.
• Perform tuning and capacity planning tasks to maintain optimal system performance and availability.
• User account/group management and sudo access update per approved access.
• Involved in troubleshooting performance related issues.
• Administered users, groups, passwords, and other aspects of security.
• Maintained formal documentation of managed systems.
• Active participation in the ITIL processes, Change, Incident, Release and Problem management.
• Provide on-call support for Unix/Linux servers.

Confidential

UNIX/LINUX ADMINISTRATOR

• Installation, configuration and administration of AIX v6.1/7.1 on pSeries servers
• Installation and configuration of LPARs/DLPARs using HMC
• Configure volume groups and logical volumes, extend logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Configure NIM Master servers and NIM client for remote installation.
• Verify and implement Live Partition Mobility (LPM) to move LPARs between frames
• Perform vSCSI to NPIV migration tasks
• Diagnosing and resolving systems related incidents in accordance with priorities setup in dealing with trouble tickets.
• Plan and implement assigned changes on AIX servers as per scheduled timeline
• Adding storage, failover testing, adding new RG, configuring and changing resources, upgrading the AIX on HACMP nodes, changing the policies of RG and troubleshooting.
• Perform tuning and capacity planning tasks to maintain optimal system performance and availability.
• Perform patch management task including applying TL, Service Pack, eFix on AIX servers
• Migrating OS from AIX 5.3 to 6.1 and 6.1 to 7.1.
• Redhat 5/6 Operating System installation and configuration.
• Patch Redhat Linux servers to apply latest updates
• User account/group management and sudo access update per approved access.
• Troubleshoot and resolve incidents on AIX/Linux servers