SUMMARY

• 15+ years professional experience in Systems Administration (involved in high end server/client environment consisting multi - operating systems), Virtualization, AWS Cloud Platform, GCP, Azure and Storage technologies on various Linux/Unix platforms (RHEL, Ubuntu, Solaris)
• Package management using RPM, YUM and UP2DATE in Red Hat Linux Maintained.
• Performance tuning of VMware servers and management of server resources between Virtual Machines
• Highly experienced wif servers provisioning, patching, troubleshooting and securing servers wif regular firewall update and monitoring.
• Experienced on Cron jobs, Systems backup and OS installation using Jumpstart and Kickstart for Redhat Enterprise Linux, Ubuntu based environments for on-premises servers.
• Experience in Linux Patching and upgradation on both bare metals and VMware servers.
• Worked on AWS Cloud platform and its features which includes EC2, VPC, EBS, AMI, SNS, RDS, EBS, S3, Dynamo DB, Elastic ache, IAM, Cloud Formation, OpsWorks, and Cloud Watch.
• Experience wif scripting languages and configuration management tools (e.g. Ansible, Puppet)
• Managed Virtualization Environment using VMware (ESXi, client, center, vSphere).
• Work Experience in SAN Business Continuity Solutions including SRDF/S, SRDF/A, Time Finder (BCV/Clones/Snap), Flash copy, Volume Copy, Remote Mirroring, OpenReplicator.
• Experienced in DNS, NIS, NFS, CIFS, FTP, NIS, Samba Server, LDAP, remote access, security management, and system troubleshooting skills
• Experience in installing the VERITAS, installing and configuring the VERITAS cluster server (VCS), using the VERITAS storage administration (VVM/VXFS) for the SAN configuration.
• Experience in setting up and configuring the Directory services utilizing Sun/Java Directory Server.
• Expert in System administration, system planning, architecting resources for applications, dealing wif the development team and planning the server resources for the applications. Expert in system administration, system 6636, architecting, group level and user level management.
• Experience in hardening operating system security. Experience using diagnostic and debugging tools such as tcpdump, snoop, nmap and Top in the UNIX/Linux environment.
• Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX (SUN Solaris (8, 9, 10 and 11), Red Hat Linux (4.x, 5.x, 6,x and 7.x)) Systems.
• Excellent client relationship skills, and drive to complete tasks effectively and efficiently
• Provided production support in an on-call rotation in a 24x7 environment.
• Document all the major activities, prepare installation and migration plans.

TECHNICAL SKILLS:

Hardware: Oracle Servers M3000/4000/5000/8000, T5-x, T4-x, T3.x, T5220/5240/5440, T2000, SCSI and Fiber-Channel storage arrays, including EMC Symmetric, Clarion, and HP server’s 580-G.x. 380-G.x, Dell R630/730, R640/740, and IBM Blades.

Operating systems: Red hat Enterprise Linux 7.x/6.x/5.x, CentOS 6/7, Ubuntu 14, 16, 18, Solaris 11/10/9/8, Windows 2012/2016.

Virtualization: VMware AWS/OCI, VPC, Oracle VM (Ldoms), Zones, KVM.

Languages: C, SQL, Shell scripting (bash & ksh), Python.

Storage/Backup Management: EMC Symmetric, VMAX/DMX, CLARiiON CX Series, Clariion, Hardware/Software RAID 0/1/5/6 using VERITAS volume manager (VXFS), ZFS, SVM, and SAN environment. Avamar, Networker, VERITAS Netbackup, tar, cpio, ufsdump, flar, ABE.

Cloud Tools: AWS - EC2/S3/IAM/VPC/Cloud Formation/Cloud Watch/Route53/SNS/SQS, JIRA, Packer, Vagrant, GIT, Ansible, Puppet, Supervisor, Docker, New Relic.

PROFESSIONAL EXPERIENCE:

Confidential, NJ

Sr. Unix/Linux Engineer

Responsibilities:

• Installation of Oracle servers/HP/Dell servers using Jumpstart or Kickstart respectively as part of provisioning. Built/Support 1000+ Linux servers consisting of RHEL/Oracle and assisted installing apps.
• Setting up root disks/mirroring. Post kickstart/jumpstart server hardening using puppet, Testing SAN failover, File system creation (ownerships, permissions) from SAN storage, Netbackup or Avamar Client Installation, SSH key exchange, SUDO skills and scripting.
• Upgraded OS and mitigate security issues to meet compliance for Linux operating system and applications.
• Managing single sign-on okta integration wif ASA linux side of projects, pre-tokens, groups, and security entitlements.
• Implemented and supported docker container creation and implementation in dev and Kubernetes cluster in production environment. Managing pods and deployments of applications as required.
• Also worked wif developers for container implementation at RHEL OpenShift for container management. Deploying and maintaining Micro services using Docker containers.
• Help wif the creation of dev standards for Puppet module development including best practices for version control (.git). Coordinate/assist developers wif establishing and applying appropriate branching, labeling /naming conventions using GIT source control.
• Design AWS Cloud Formation templates to create custom sized VPC, subnets, NAT to ensure successful deployment of Web applications and database templates. Built a VPC established the site-to- site VPN connection between Data Center and AWS.
• Managed/supported Jenkins jobs for developers to support CI/CD for applications as required multiple environments like Dev, QA, and Production. Created automated pipelines in Jenkins.
• Work wif other teams to halp develop the Puppet infrastructure to conform to various requirements including security and compliance of managed servers.
• Worked on JIRA for defect/issues logging & tracking and documented all my work using CONFLUENCE.
• Good Experience in architecting and configuring secure cloud VPC using private and public networks through subnets in AWS.
• Managing access to your Amazon S3 resources and Amazon Glacier Storage for long-term archival storage.
• Performed weekly and on call deployments of application codes to production environments.
• Designing and implementing fully automated server build management, monitoring and deployment by using Technologies like Puppet.
• Deployed Puppet, Puppet dashboard for configuration management to existing infrastructure.
• Initiating alarms in CloudWatch service for monitoring the server's performance, CPU Utilization, disk usage etc. to take recommended actions for better performance.
• Configured AWS Multi Factor Authentication in IAM to implement 2 step authentication of user's access using Google Authenticator and AWS Virtual MFA.
• Writing UNIX shell scripts to automate the jobs and scheduling cron jobs for job automation using commands wif Crontab.
• Implemented Oracle WebLogic, IBM WebSphere application as middleware servers for various application.

Confidentia, NJ

Sr. Linux Administration

Responsibilities:

• Worked in MHC for the Data Center Migration Project as an effort to do the separation of business wifin McGraw-Hill, which include the 1200+ Servers and Storage Migrations. Migration plan was based on the agile methodology.
• Worked wif different Businesses, Application and Infrastructure Teams to plan the migration for Separation.
• Provide the necessary files for creating the master plan sheet and worked wif Solution Architect to halp in planning the moves, identifying the application discovery and required checkpoint firewall rules need to open.
• Worked wif Application team and SA to identify and understand the required Public IP and DNS changes for the functionality of application.
• Provide Data required for open different change tickets related to GLB, LLB, Firewall, Seplink and DNS.
• Works on creating and implementing application monitoring, and logging strategies using New Relic, Logstash, Elasticsearch and Kibana.
• Responsible for building and maintaining infrastructure on AWS and Peer1 for Engrade Project.
• Implemented AWS solutions using E2C, S3, RDS, EBS, Elastic Load Balancer, Auto scaling groups.
• Manage the AWS environment for Engrade and automate the build from template and used configuration management tools like puppet to deploy these builds.
• Implemented & maintained the branching and build/release strategies utilizing GIT.
• Used Puppet for application automatic deployment and provisioning to AWS environment.
• Install and configure the Rabbit MQ environment for the Analytics and setup the supervisor for managing process availability.
• Worked wif the Data Center team, Network teams and Storage teams for troubleshooting the issues during the moves and fixed them and handover servers to application teams for application testing.
• Managed system configuration and maintenance, problem troubleshooting, system and program security, applications and program management, planning and directing upgrades and testing to ensure system functionality.
• Worked as System engineer wif EMC to halp in moving the SAN and NAS storage on servers across the Datacenter and Luns Remapping on new storage and troubleshooting the issues.
• Installed Avamar backup client agents and configure backup software for daily backup jobs & Installed and configured Nagios monitoring tool
• Troubleshoot complex Network/firewall/Load balancers, storage & all kinds of issues during and after migrations.
• Analyzing, troubleshooting and resolving problems involving OS/Application/Web site issues & configuring the App, Oracle database and production servers.

Confidential, NY

UNIX Systems Administrator

Responsibilities:

• System/Storage Architecture, Project Management - Solaris/Linux Administration, Veritas, SAN/NAS.
• Installed, configured and managed Solaris 2.6, 8, 9 and 10 on Sun Enterprise systems, Red Hat Enterprise Linux 5.x, 7, 9 troubleshooting hardware, Application & Network problems and performance issues.
• Installation of Oracle servers/HP servers using Jumpstart & Kickstart respectively as part of provisioning.
• Support 2400+ UNIX servers consisting of Solaris/RHEL.
• Designed, configured, and implemented a custom Solaris local/Wan Jumpstart environment, providing a baseline configuration on all servers and allowing custom configurations.
• Install, configure and manage Solaris LDAP server 5.1p2 directory servers.
• Established certification and implementation of LDOM based virtualized infrastructure for server consolidation, using T5240 and T5140 based systems. Same tested on T4-2 and T3-2.
• Worked on Solaris 10 based zone installs and customizations, established Solaris 10 Zones /Container based standards for the entire corporation.
• Installed and configured Veritas RAC cluster assisted Dba’s during ASM cluster build over Solaris/Red hat.
• Setting up server NIC’s (Nic Bonding, IPMP, Link Aggregation).
• Setting up root disks/mirroring. Post kick start/jumpstart server hardening, Testing SAN failover, File system creation (ownerships, permissions) from SAN storage, Netbackup Client Installation, SSH key exchange, SUDO skills and scripting
• Support Oracle applications for installation, configuration, troubleshooting, start, stop of database listeners.
• Worked wif utilities like net stat, iOS tat, vmstat, sar, prstat, ndd, top, prtdiag and various third-party tools to analyze problems, file systems space issues, network problems, hardware issues etc.
• Worked wif various vendors for troubleshooting issues, supervised the work of vendors to ensure proper installation and configuration of servers, security configurations and critical OS patching.
• Created NFS, mount point, and patch installation of all servers.
• Strong technical background in Disk Management, VERITAS Volume Manager, Logical Volume Management (LVM) and logical partitioning on Solaris
• Attended/supported regular Disaster Recovery Tests. Active member of the Disaster recovery team at S&P. Key member of the DR team during the DR situation recovered/built critical servers in disaster scenarios.
• Providing 24x7 supports to servers. Monitoring and troubleshooting of any data center outages.