SUMMARY

• Seven years of IT experience specialized in System Administration working on Red Hat Linux, Tru64, Ubuntu, Solaris, Unix, AIX, CentOS, Fedora, OEL, Windows environments, VMware VSphere.
• Experience in Installing, upgrading, and configuring Red Hat Linux 5.x, 6.x and 7.x and Debian using Kickstart Servers.
• Experienced in installation, configuration, administration, troubleshooting, tuning, security, backup, recovery and upgrades of IBM AIX, Solaris 2.x, 8, 9, 10, HP - UX 10.x, 11.x, Win NT/2000 Server, Linux (Red Hat & SUSE).
• Worked on Data-Center operation and maintenance across UNIX and Linux platforms.
• Experience in Creation and managing user accounts, security, disk space and process monitoring.
• Have worked with the Yum for RHEL and Yast2 for SUSE (SLES 9 and 10 versions) for upgrading the Linux.
• Hardware virtualization using KVM
• Worked on Virtual privatecloud(VPCs)
• Migrating existing on-premises application to AWS using state-of-the art technology
• Implementing and controlling the flow of data to and from AWS
• Stand-Up Infrastructure by cloning contents of n SAMHSA GovCloud servers to other instances
• Selecting the appropriate AWS service based on compute, data, or security requirements
• Identifying appropriate use of AWS operational best practices
• Worked on Data migration and troubleshooting data pipeline issues.
• Experience in working with fluentd.
• Expertise in VPN/Amazon Cloud Formation/Stack creation and troubleshooting them.
• Expertise in building secure private cloud infrastructure within Virtual Private Cloud(VPC) and not allowing publicly.
• Experienced in implementing Puppet,Chef, DevOps.
• Proficient in working with J2EE Technologies such as Servlets, JSP, Bootstrap, JDBC, XML, JSTL, Java Beans, Spring, HTML5, AngularJS, Hibernate, JAX-WS, JAX-RS, and Struts.
• Experience in the implementation of High Availability using Logical Volume Manager
• Experience in implementing and configuring of high availability and redundancy and RAID using Logical Volume Manager, Sun Volume Manager, Veritas Volume Manager 3.x, 4.x, 5.4.x
• Experience in the implementation of naming services like DNS, NIS and LDAP
• Experienced with AIX OS Migration from version 5 to 6.1 using Alt disk as a best practice. NIM (Network Install Management) set up, performing a NIM installation, troubleshooting. Experienced with NPIV configuration in the VIO environment.
• Responsible for capacity planning, including allocating storage, providing hardware and software redundancy, and planning future expansion requirements
• Experience in the configuration of the of the mail servers like Sendmail 8.13, 8.14.x and Postfix 1.x, 2.x
• Expert level proficiency in Development usingPuppet/Chef GitHub - Especially automation of Middleware, OS Automation Experience is a Plus.
• Having experience in Agile Methodologies, Scrum stories and sprints experience in aPythonbased environment, along with data analytics, data wrangling and Excel data extracts.

TECHNICAL SKILLS

Operating System: IBM AIX (4.3, 5.1, 5.2, 5.3,6.1), SUSE, Debian, Ubuntu, CentOS, Sun Solaris, RedHat Linux (AS/ES 3/4/5), VMware ESX 4.X, KVM, Windows NT 4.0/2000/2003/ XP/vista

VMWare: VMware Infrastructure Client and VMware ESX Server 4.x/3.x/2. x.

Network Protocols/Services: DNS/Bind, Samba, TCP/IP, NFS, Telnet, DNS, LDAP, SSH, DHCP, NAT, LAN, WAN, ARP/RARP, FTP/TFTP, ifconfig, route, netstat, xinetd, HTTP.

Storage: SAN EMC Symmetrix 800/ DMX1000, 2000 & 3000, EMC CLARiiON 500, 600, 700, NetApp NAS 2000/ 3000 series

Databases: MySQL, PostgreSQL, Redshift, Amazon Aurora, MariaDB, Percona SQLite, DB2, Oracle

Automation Tools: Kickstart

Mail Servers: SMTP, SNMP, POP, IMAP, qmail, Sendmail, Postfix

Cluster: Veritas Cluster Server, MC/Service Guard, Sun Cluster

Languages: C, C++, Java, Shell, awk, Perl, Python, Ruby, JSON

PROFESSIONAL EXPERIENCE

Confidential, CA

Linux/AWS Engineer

Responsibilities:

• Maintaining Ubuntu servers by monitoring/administering them on regular basis for stability.
• Experience in working with core architecture of fluentd.
• Expertise in monitoring AWS servers using Zabbix monitoring tool.
• Supported a migration effort (Develop/Test) within an enterprise VMware infrastructure into AWS Cloud environment.
• Possess a clear understanding of planning, designing, implementing, and maintaining system applications in the AWS cloud environment.
• Develop AWS EC2 Architecture for support of Hortonworks Hadoop Stack 2.3. Install AWS EC2 Server Instances (4 Servers) on Linux Red Hat 7 Clusters
• Experienced with build automation tools like Ant and Maven, experienced in cloud automation using AWS Cloud Formation Templates, Chef, and Puppet.
• Created AWS Cloud Formation templates(CFT) to create custom-sized VPC, subnets, EC2 instances, ELB, security groups.
• Worked on tagging standard for proper identification and ownership of EC2 instances and other AWS services like Cloud Front, Cloud Watch, RDS, S3, Route53, SNS, SQS, Cloud Trail.
• Hands-on Experience in writing Bash, Perl, Python, Ruby scripts for building deployment pipelines.
• Worked in DevOps group running Jenkins in a Docker container with EC2 slaves in Amazon AWS cloud configuration.
• Also, gain familiarity with surrounding technologies such as Mesos and Kubernetes.
• Managing the data synchronization for customers on premise database or cloud database to Redshift.
• Big data management and big data analysis are the core part of the project.
• Dealing with core Linux system engineering, high-transaction, large scale infrastructure environments involving complex architecture.
• Working on backend architecture which introduces a lot a complex logic, algorithms and business rules.
• Restructured the HIPAA Privacy and Security Program, including Breech management and reporting
• Designed an electronic crosswalk between Joint Commission Standards to the HIPAA Privacy Rule Requirements
• Hands on experience in Prototyping, designing, programming, testing, and implementation of software and infrastructural architecture systems.
• Understanding and working on various components of systems and operational administration, information security, logarithmic/algorithmic programming, big data management and analysis
• Worked on databases like MySQL/PostgreSQL/Redshift/Amazon Aurora/MariaDB/Percona by querying the data regularly.
• Resolving data parity issues and deep troubleshooting for huge data gaps.
• Actively participated in resolving data servers’ disaster recovery.
• Extensively worked on Fluentd open source data collectors, logging with JSON.
• Widely used GitHub for source code understanding and troubleshooting
• Worked onCheffor the deployment of servers with custom scripts.
• Worked on AWS Cloud management andChefautomation
• Wrote bash and shell scripts to parse through logs on all nodes in a cluster with ease.
• Extensively used ruby scripts for problem detection and to resolve.
• Direct support to client via Intercom cHat/Zendesk also on call sometimes.
• Monitoring AWSand on-premise resources using Zabbix.
• Worked extensively withRubyon Rails 2.3 and 3.2, Chef, AWS.
• Application deployment and data Migration on AWS.
• Creating VPC and building total secure & private architecture (EC2, RDS, Redshift) within the VPC and not allowing publicly.
• Worked on AWSEC2, S3, EBS, VPC, ELB, Route 53, Auto scaling, Security Groups
• Expertise in creating/troubleshooting secure tunnel connection the OpenVPN tunnel between the environments.
• Troubleshooting VPN issues on client end and establishing secure connection to their database successfully.
• Created AWS IAM users for security purposes and restricted access on AWS resources by giving necessary privileges to users.
• Working on day to day administration tasks and resolving tickets using Zendesk ticketing tool.
• Monitoring system metrics and logs for any problems and resolving them instantly
• Wrote JSON scripts for replacing sensitive characters in the data while replicating to Redshift, for security purposes.
• Used iTerm to manage work on several nodes in a cluster simultaneously.
• Worked on troubleshooting and configuring Secure Socket Layers (SSL) Monitoring AWSand on-premise resources using Zabbix.

Environment: Ubuntu, Fluentd, Ruby, AWS, VPN, VPC, EC2, Cloud Formation, Cloud Migration, Horton Works, Auto-scaling, Mac OS X 10.13.2, Apache Web Serves, Tomcat, GitHub, Yum, RDS, MySQL, PostgreSQL, Redshift, Amazon Aurora, MariaDB, Percona

Confidential, Lincolnshire, IL

Linux/Cloud Engineer

Responsibilities:

• Responsible for installing, upgrading, and administering the (RHEL 4.x, 5.x, 6.x & 7.x) server
• Configure and install RHEL and CENTOS Linux Servers on both virtual machine and bare metal Installation.
• Responsible for Design of different Release Environments for new projects.
• Implementing new projects builds framework using Jenkins & maven as build framework tools.
• Installed the REDHAT 4.0/5.0 operating system and set up the Oracle environment.
• Performed WebLogic Server administration tasks.
• Experience in using various transport, application and internet protocol layers like DHCP, DNS FTP, HTTP, IMAP, POP3, RPC, SMTP, SNMP, SOAP, SSH, Telnet,TLS/SSL, TCP/IP, IP (IPv4, IPv6).
• Configure password-protected directories, IP address denials, SSL/TLSand GnuPG key settings to restrict access.
• Fast-provisioning and configuration management for Ubuntu using Cloud Formation andChefon Amazon Web Services.
• Wrote Pig Latin to manipulate ETL process and aggregate data in Hortonworks
• Created ODBC connection through Sqoop between Hortonworks and SQL Server
• Configured Flume to stream live Twitter data into Hortonworks nodes
• Installing and configuring Veritas Volume Manager (VxVm), Veritas File System (VxFs) and Veritas Cluster Server (VCS)
• Worked onCheffor the deployment of servers with custom scripts
• Managed 500 Linux servers with 1 PB of Storage and 100 users.
• Deployed VM on ESX host and Oracle Linux VM’s on ORACLE EXALOGIC.
• Supported 100 Users on Linux, Centos and Ubuntu Operating Systems
• Installation of Red Hat EL 4.x, 5.x using Kickstart and PXE on HP DL380 G3.
• Upgrade firmware RHEL 5 to RHEL 6
• Extensively worked with HACMP, Virtual I/O.
• Configured Processes and Process management using Crontab
• Production support of SYBASE,Shell, Perl and Windows applications
• Developing, and supporting UNIX/Linux Kornshellscripting, PerlScriptingapplications
• Involved in hardware virtualization using KVM
• Used KVM for Virtual Machines live migration
• Managing the NFS shares and KVMs in LINUX environment
• Developed J2EE components on Eclipse 3.2 IDE.
• Deployed & Migrated Oracle database in AWScloud.
• AWS Provisioning & Troubleshooting, Enterprise VPN, and Amazon VPC integration with data center.
• Worked extensively withRuby1.9.3 and 1.8.7,Rubyon Rails 2.3 and 3.2, Backbone.js, Puppet, AWS.
• Fixed issues related toOpenStackcomponents Nova, Glance, Neutron, Keystone.
• Implemented automated local user provisioning VMs created inOpenstackand AWS cloud through Chef recipes
• Experience in configuring Zookeeper to provide Cluster coordination services.
• Process flow/RACI design for the AWS migration & Process
• Process shows the flow of AWS Migration
• Application deployment and data Migration on AWS.
• Developed a product to help enterprise customers save months in their cloud migration process to AWS
• Have Worked on AWS(EC2, S3, EBS, VPC, ELB, Route 53, Auto scaling, Security Groups).
• Used the AWSKMS for the password Encryption and storing the secret attributes.
• Created Apache Web Server, FTP Server, NTP server and NFS Server Configuration
• Managing data storage size in FTP server to serve company's need of space to store more data safe and secure.
• Coordinated Kafka operations and monitoring (via JMX) with DevOps personnel.
• Experience in Nagios and Ganglia monitoring tools.
• Monitoring AWSand on-premise resources using Nagios.

Environment: RHEL 5,6,7, ESXI 5.5, Cloud Migration, Horton Works, KVM, ORACLE EXADTA, LVM, VERITAS NetBackup 6.5, HACMP, Oracle 10g and Powerpath, Microsoft Windows 2003, J2EE, Apache Web Serves, Tomcat, Yum, AD, Dell PowerEdge 1850, 2850, HP DL380 G3, HP DL570 G8, c3000, EMC VNX 5600, Brocade 6510, BMC Remedy.

Confidential, St Louis

Linux Administrator

Responsibilities:

• Responsible for the operation, maintenance and integrity of a distributed networked Linux/AIX environment.
• Provided support for more than 700 RedHat, Cent OS servers.
• Expertise in creating VM Templates, cloning and managing Snapshots.
• Configured and deployed multiple VM’s using VSphere client.
• Expertise in configuring Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes utilizing clusters.
• Installing and configuring Saltstack, writing manifests to automate day-to-day activities.
• Managed 500 servers using Saltstack to install and update system, application configurations.
• Experience in configuring monitoring tools like Xymon.
• Performed system performance monitoring, created alerts and benchmarking for performance analysis on all application & production servers.
• Worked on server-side applications with Django usingPythonprogramming.
• Automated Regular AWS tasks like snapshots creation usingpythonscripts.
• Worked onPythonOpenStack APIs and used NumPy for Numerical analysis.
• Developed multiple shell scripts for system monitoring.
• Configuration and administration of HACMP cluster resources, cascading, rotating and concurrent resource groups, event handler testing using clstat, clverify.
• Verify and Synchronize the HACMP cluster, configured HACMP to monitor, detect and react to failure events, making systems available during random and unexpected events.
• Adding, increasing the file system space in HACMP environment.
• UsesPowerShellto automate routine tasks when applicable
• Experienced in implementation of backup and recovery process for various databases likeMongoDB, Oracle and MySQL.
• Experienced inMongoDBdocument Schema design.
• Worked on MMS monitoring tool to support multiple versions ofMongoDB.
• Supported migration project of Red Hat Servers to the ElasticCloud. Autoscale to spin over 50 EC2 instances when some are down to create high availability
• Web server configuration and maintenance- Apache, php5,nginx
• Worked on configuration changes & tuning ofNginxusing Configuration management software tool Puppet
• Implemented multi-tier application provisioning in AWS,Openstackcloud and integrating it with Chef/Puppet
• Hands-on experience in Nagios and Ganglia monitoring tools.
• Effective management of hosts, auto mount maps in NIS, DNS and Nagios.
• Loading large scale data into several tables using UNIXKornshelland Perl scripts
• Investigate various issues and fix existing problems using batch,shell, Perl script and SYBASE stored procedure.
• Provided troubleshooting solutions through automations and monitoring system stats on Splunk applications with the help of Splunk-dashboards during new releases.
• InstalledNetApp(NAS) cluster with redundant network links and working fail-over configuration
• UpdateNetApp(NAS) OS version, create new disks volumes and disks groups.
• Expertise in handling crisis during heavy load on servers and maintaining zero downtimes.
• Installed, configured SOA suite, RCU, OEM, oracle fusionmiddleware.
• Troubleshooting booting related issues, creating boot records, working with system maintenance mode, recovering root password, fixing booting related issues, working with bootlist.
• Responsible for the AIX Migration Installation from 5.2, 5.3 to AIX 6.1 both regular and NIM Alt disk migration.
• Experienced with Logical Volume Manager (LVM). Working with mirrored logical volumes.
• Experienced with upgrading the hardware and Firmware levels of the PSeries servers.
• Responsible for taking regular backups as mksysb and savevg and restoring them when needed.

Environment: 500+Linux, 200+ AIX Servers, DELL, HP ProLiant DL-380 G4/G5, pSeries (p550, p520), RHEL(6.x,5.x), AIX 5.3/5.2/5.1, Oracle, MySQL, Tomcat.

Confidential

Linux Engineer

Responsibilities:

• Installing and upgrading OE & Red Hat Linux and Solaris 8/ & SPARC and Tru64 on Servers like HP DL 380 G3, 4 and 5 & Dell Power Edge servers.
• Experience working in AWS Cloud Environment like EC2 & EBS.
• Implemented and administered VMware ESX 3.5, 4.x for running the Windows, Centos, SUSE and Red Hat Linux Servers on development and test servers.
• Installed and configured Apache on Linux and Solaris and configured Virtual hosts and applied SSL certificates.
• Implemented Jumpstart on Solaris and Kickstart for Red Hat environments.
• Experience working with HP LVM and Red Hat LVM.
• Experience in implementing P2P and P2V migrations.
• Involved in Installing and configuring Centos & SUSE 11 & 12 servers on HP x86 servers.
• Implemented HA using Red Hat Cluster and VERITAS Cluster Server 5.0 for Web Logic agent.
• Managing DNS, NIS servers and troubleshooting the servers.
• Troubleshooting application issues on Apache web servers and database servers running on Linux and Solaris.
• Design and implementation of perl andKornshellscripts to streamline TSM administration tasks
• Used Sun Volume Manager for Solaris and LVM on Linux & Solaris to create volumes with layouts like RAID 1, 5, 10, 51.
• Wrote abashscriptto automate running of multiple validation processes.
• WritingBashscriptfor specific functionalities needed during PDL work.
• Re-compiling Linux kernel to remove services and applications that are not required.
• Performed performance analysis using tools like prstat, mpstat, iostat, sar, vmstat, truss, Dtrace.
• Experience working on LDAP user accounts and configuring LDAP on client machines.
• Upgraded Clear-Case from 4.2 to 6.x running on Linux (Centos &Red Hat)
• Worked on patch management tools like Sun Update Manager.
• Experience supporting middle ware servers running Apache, Tomcat and Java applications.
• Worked on the administration of the Web Logic 9, JBoss 4.2.2 servers including installation and deployments.
• Worked on F5 load balancers to load balance and reverse proxy Web Logic Servers.
• Shell scripting to automate the regular tasks like removing core files, taking backups of important files, file transfers among servers.

Environment: Solaris 8/9/10, Veritas Volume Manager, web servers, LDAP directory, Active Directory, BEA Web logic servers, SAN Switches, Apache, Tomcat servers, WebSphere application server.

Confidential

Systems Administrator

Responsibilities:

• Involved in the analysis, design, and development phase of the application.
• Created Class, Activity, and Sequence Diagrams using IBM Rational Rose modeling tool.
• Handled tasks such as password reset requests, printer and print queue problems and connectivity troubleshooting.
• Also, responsible for the installation, administration and maintenance of Linux servers.
• Upgrade the operating system and applications as and when necessary. Server upgrades and daily user support.
• Installed centos using Pre-Execution Environment boot and Kickstart method on multiple servers.
• Preparation of operational testing scripts for Log check, Backup and recovery and Failover.
• Creation and implementation of shell scripts to take care of DB backup, monitoring alert log and log rotation reports.
• CRON job automation for backups and recurring jobs needed for other applications
• Administered DNS and DHCP.
• Installation of database on Linux servers for clients and in-house requirement. Used SQL and PL/SQL extensively to code the backend of the applications.
• Aided data base administrators in installing data bases, building data base, refreshing and overlaying data bases, removing data bases, and backing up of all data bases.
• Assisted in installation and maintenance of workstations, servers, networking equipment, and other supporting hardware.
• Involved in debugging and troubleshooting related to production and environment issues
• Configured the routers and setup firewall rules.
• Monitored the network traffic through Wireshark, TCP dump tools.
• Monitoring System Metrics and logs for any problems.
• Adding, removing, or updating user account information, resetting passwords, etc.
• Using java JDBC to load data into MYSQL.
• Maintaining the MYSQL server and Authentication to required users for databases.
• Creating and managing Logical volumes.
• Maintaining the MYSQL server and Authentication to required users for databases.

Environment: Centos, PL/SQL, JDBC, Java, Rational Rose.