OBJECTIVE:

• A Systems Engineering position requiring strong Unix (Linux, Solaris, AIX) Operating Systems skills with Cloud, DevOps and AWS.

TECHNICAL SKILLS

• Linux/Unix Systems Engineering and administration.
• Installation, configuration, Upgrading, troubleshooting and performance monitoring of Red Hat EL (5.x,6.x,7.0 GA, beta, 7.1, 7.2), Red Hat Satellite 6, CentOS (5,6), Solaris 9.0, 10.0, 11.0, VMware ESX/ESXi 4x,5x,
• AWS, DevOps and Automation
• Build and Release, SCM, AWS, Environment Management, Continuous Integration (CI), Continuous Delivery (CD) and Devops Methodologies
• Chef, Ansible, ANT and MAVEN, Git, Docker
• Package management using Red Hat RPM, YUM, Red Hat Satellite Server and compiling the Linux Kernel for different builds.
• Recipes and Cookbooks, Chef - Server, AWS for EC2/S3/Route 53 & ELB with Chef Cookbooks.
• Jumpstart Server, Kickstart Installation for Network Installation on various UNIX Base Operating System.
• TCP/IP packets doing packet analyzing using snoop, Tcpdump and Wireshark.
• Scripting - Shell, Bash, Perl, Python, C, C++
• DNS, LDAP, FTP, Tomcat 4.x, 5.x, 6.x & Apache Web Services on Linux servers Apache HTTPD, SMTP, DHCP, NFS, NIS, NIS+, LADP, SAMBA, SQUID, Postfix, send mail, FTP, Remote Access.
• Experienced in System performance, Tuning, Memory management, Capacity planning and Disaster recovery planning
• Security management, Security troubleshooting

PROFESSIONAL EXPERIENCE

Confidential, Milwaukee - WI

Systems Engineer

Responsibilities:

• Administering Jenkins and secured Jenkins with role based access controls and matrix based project access.
• Setup all different kinds of projects in Jenkins ranging from software to maven style projects and matrix based projects
• Jenkins - monitoring external jobs, distributed builds and plugin management.
• Leveraging several Jenkins plugins to automate tasks like code coverage, metrics, aws-ec2 plugin, and job creation.
• Utilizing AWS cloudwatch to monitor the performance environment instances for operational and performance metrics during load testing.
• Creating alarms and trigger points in CloudWatch based on thresholds and monitored logs via metric filters .
• Writing 12 different cookbooks containing multiple recipes to achieve automation for middleware installation, Environment readiness and deployment activities.
• Utilizing all components of cookbooks like recipes, resources, templates, attributes and libraries.
• Deploying J2EE applications to Application servers in an Agile continuous integration environment and also automated the whole process.
• Implementing a Continuous Delivery pipeline with Docker, and GitHub and AWS.
• Administration and maintenance of Docker runtime environment, Versioning and lifecycle management of Docker images, Experienced in Docker orchestration framework.
• Performing Unix Admin functions on Linux (RHEL, SuSe and CentOS), Solaris and AIX
• Troubleshooting with incident management on production impacting issues
• Performed server health checks during incident calls on AIX, Solaris and Linux servers
• Used Netscout to pull sniffer captures data packets based on hostname, ip address, or port
• Analyzing server resources by generating comprehensive report using Uptime and eHealth
• Performing tcpdump/iptrace during troubleshooting to capture data packets
• Investigating server actives by collecting logs using Splunk thin client
• Updating service desk tickets based on prod issues and also resolved tickets transferred to my queue
• Working within a team consisting on Network, Systems, Middleware and OracleDB Engineers
• Performing server logs check during troubleshooting to ensure the server is working accurately as designed
• Troubleshot server issues like file systems, NFS, memory, network, and other server resources

Confidential, Iowa City - IA

Linux Systems Administrator

Responsibilities:

• Installation, configuration and maintenance of RedHat Linux servers
• Performed server installation on both physical and virtual servers
• System configuration/hardening by turning off unnecessary services
• Disk configuration, created and managed File Systems
• Created and managed user accounts, groups, access levels, permission, and SUDO
• Monitoring server performance of virtual memory, swap space, disk utilization and CPU utilization
• Checked server logs, trace files and file System, and back-end applications
• Setting up cron schedules for backups and monitoring processes.
• Installation and configuration of Redhat Device Multipathing.
• Installation, Maintenance, Administration and troubleshooting of Linux and AIX.
• Installed the Operating System on Linux servers and Blades over the network.
• Kickstart Installations running Post Install Scripts Redhat Satellite Server, yum, rpmfor updates.
• Installing and Configuring Application Software like Tomcat, apache, PHP, MySql.
• Configuring and maintaining network services on servers.
• Built virtualized Linux servers on ESX and Blade servers to host multiple applications on same chassis across different server hosts. Set up Linux servers for iSCSI LUN boot instead of using local hard disks.
• Created File systems from local storage as well as NFS partitions for application portability.
• Maintained Puppet-based configuration management in operational and production environments.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Worked and performed data-center operations including rack mounting, cabling.
• Implemented AWS solutions using EC2, S3, RDS, EBS, Elastic Load Balancer, Auto scaling groups.
• Installed, configured, and maintained WebLogic 10.x and Oracle 10g on AIX & Redhat Linux.
• Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.
• Installing and configuring Apache and Tomcat and supporting them on Linux production servers.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.

Confidential

System Administrator

Responsibilities:

• Building Linux servers for Production, Development and Test Environments and supported the ones under production.
• Using VM templates and kick start servers to build multiple servers over the network.
• Performed OS upgrades for critical servers under production.
• Performed various file system changes to accommodate upgrades in applications, services and databases.
• Experience configuring Open LDAP and setting up clients for Open LDAP.
• Worked on decommission of the servers which reached end of life and performed SAN migrations using LVM and EMC tools.
• Performed and Maintained OS/APP backups for Linux and Solaris servers.
• Installation, configuration, patching, support to Application and web server.
• Configured NIS, NFS, http, CUPS, Samba, DHCP, NAT, Primary Secondary and cache-only DNS servers
• File system management and consistency checks using df,du,e2fsck,mount
• Disk usage monitoring, administering and implementing disk quotas.
• Extensively worked in troubleshooting the hardware and software issues
• Configured multi-tier parent/child relationship squid web caching system
• Extensively worked on software and hardware raid on Red Hat Linux machines.
• Extensive knowledge in configuring Samba and NFS for the sharing of files
• Involved in writing shell scripts for monitoring system usage, backup and recovery strategies, automation of jobs, adding new services to the system.