Srikanth Doma

• Collaborated with Business and Solution Architect Teams on designing and capacity planning for Dev, UAT, DR, and Production Environments.
• Requested hardware, memory, network resources, local SAS disks, SAN, and NAS storage.
• Coordinated with Network Engineering to set up network connections for Private VLAN and NIC bonding.
• Create self-healing and resilient designs.
• Managed virtualization setup on VMware ESX/ESXi hosts.
• Worked with the SAN team to allocate SAN storage (EMC, Hitachi) to Linux/AIX/Solaris hosts.
• Allocated Scale IO storage on Linux servers.
• Assigned NAS storage to Linux/AIX/Solaris hosts.
• Deployed 1000+ Linux, 100 Solaris, and 50 AIX servers for various applications using kickstart, jumpstart, and Tivoli provisioning.
• Upgraded RHEL5.x, RHEL6.x, RHEL7.x on HPE DL and IBM x3650 M4 servers.
• Installed Solaris 10 on various Sun Fire servers.
• Installed AIX 6.1 and 7.1 on IBM 9119-FHS and 9179-MHD servers.
• Configured RAID10, RAID5, and RAID1 layouts.
• Managed pre and post-build checkouts and server setup according to application and database requirements.
• Worked on Application and Data base build sheets.
• Configured hosts to the LDAP servers for user Administration.
• Created groups and user accounts locally and at LDAP level.
• Created physical volumes, volume groups and logical volumes using LVM on RHEL and AIX hosts on local and SAN disks.
• Created diskgroups, volumes, raw devices using Veritas Volume manager.
• Created and mounted ext2/ext3 and jfs2,vxfs,zfs file systems.
• Installed WebSphere Application Server, WebSphere MQ, Portal, Weblogic, Tibco,Tomcat, iplanet, IHS, jdk, jre, jrockit, netprobe, apache, httpd, autosys, NDM and various Application related packages on RHEL, Solaris and AIX hosts.
• Installed Oracle and Sybase Database packages on RHEL,Solaris and AIX hosts.
• Installed, uninstalled, and upgraded the rpm packages using rpm/yum commands on RHEL hosts.
• Created zones,localzones zpool, zfs on Solaris 10 Servers.
• Configured cron jobs, autosys scheduling jobs to run system processes and application startup processes.
• Configured KDC LDAP to various Realm and OU’s and Active Directories for user based authentication.
• Worked on configuring oracle ASM devices on Red Hat Linux.
• Installed, uninstalled, and upgraded the AIX bff packages using installp.
• Configured kernel parameters, ulimit values as per application requirements.
• Created 2-node, 5-node VCS clusters using Veritas Volume Manager 5.x/6.x/7.x/8.x
• Created raw devices for Sybase Servers and vxvm, cfs filesystems using VCS configuration.
• Configured Network bonding (NIC Bonding) between two Interfaces.
• Configured Veritas NetBackup’s for new and existing servers and tested backup and restore.
• Provided crontab accesses to non-root users to run application jobs.
• Configured kdump on Linux hosts.
• Created/increased swap space on Linux/Solaris hosts.
• Supported Dev, UAT, DR, and Production environments in daily BAU activities.
• Managed over 500 Linux/Solaris/AIX servers as a Primary System Administrator 24/7.
• Deployed applications using rpm, yum (RHEL), installp (AIX), pkgadd (Solaris).
• Created and expanded file systems (xfs, ext4, ext3, vxfs, jfs2, zfs).
• Supported servers for Markets, Fixed Income, Rates, Trading, Commodities applications.
• Installed multipath software like VxDMP, EMC PowerPath, native multipathing software on Redhat Linux; performed HBA firmware upgrades.
• Installed various packages: JDK, JRE, WebSphere, WebLogic, JBoss, Iplanet, IHS, Tivoli, Oracle, Tibco, RVD.
• Configured NAS filers from Grid computing servers to Linux Servers with various NFS version.
• Set up SSH public keys between Linux to Linux and Linux to Windows machines for passwordless authentication.
• Supported IBM Spectrum Grid Servers and mounted Grid Servers on Linux Servers with GPFS File system.
• Managed Grid Cluster environment, Created GPFS file systems on Red Hat Linux.
• Configured Veritas cluster file systems, Scale IO, and VVR using Best Practice documentation from engineering.
• Worked on creating dashboards on Grafana, PowerBI and splunk tools.
• Worked on Configuring Block Storage, SAN, Object Storage, NAS to store file based data.
• Managed user access on Linux, Solaris, AIX servers using NIS plus and pbrun.
• Configured SCSI controllers/disks, backup tape drives for nightly backups.
• Set up network configurations (NFS, DNS, NIS, DHCP); Troubleshoot TCP/IP issues.
• Monitored servers using BMC Performance, Tivoli Monitoring, HPASM tools.
• Used ITSM tools; managed local/global zones.
• Downloaded packages from JFrog Artifactory and deployed them using yum and dnf.
• Executed disaster recovery models, failed over services to COB.
• Upgraded ILO, Smart Array, BIOS, Network firmware for HP and IBM hosts.
• Provided sudo permissions to ansible users and root based accounts.
• Applied OS patching/upgrades on RHEL and Solaris hosts.
• Upgraded hosts from RHEL5.x to higher versions.
• Administered VMware hosts using vSphere client and VMRC.
• Increased memory and CPU on VM hosts.
• Coordinated with Load balancer team for PVLAN, WLAN, private connections, 3DNS.
• Managed datacenter migration, including moving servers across floors and locations.
• Handled SAN migration projects, both host-based and LUN-based.
• Conducted NAS migration between different NAS filers.
• Executed migrations of physical hosts to virtual hosts (P2V) and virtual to virtual hosts (V2V).
• Migrated virtual machines from one ESXi host cluster to another ESXi cluster with and without IP changes.
• Migrated data between EMC and Hitachi storage devices.
• Rebuilt hardware from RHEL5.x to RHEL6.x, including data migration.
• Upgraded RHEL6 servers to RHEL7 using in-place upgrade tools, performing pre-checks and post-checks.
• Supported upgrades from RHEL7 to RHEL8.
• Diagnosed operating system-related production issues on RHEL, Solaris, and AIX hosts.
• Monitored CPU, memory, swap, I/O, and file system utilization.
• Addressed Sev1 and Sev2 major incident issues in the production environment and provided Root Cause Analysis (RCA) to stakeholders.
• Troubleshoot OS related issues, including CPU and memory usage of processes.
• Implemented Linux security measures and hardening protocols between hosts.
• Resolved file system corruption, read-only file systems, SAN, NAS, network latency, and packet loss issues.
• Worked on troubleshooting user authentication, PAM, LDAP, AD authentication and authorization issues.
• Resolve urgent incidents, conduct blameless post-mortems, and ensure incidents are permanently closed.
• Monitored production servers using IBM Tivoli Monitoring Tools.
• Adjusted kernel tuning parameters to mitigate production slowness.
• Opened cases with Red Hat, Veritas, HP, Sun Solaris, and IBM and collaborated with vendors to troubleshoot and resolve issues, providing solutions and RCA to users.
• Generated reports on CPU, memory, and process resource utilization for application users.
• Supported 24x7 on-call rotation in a production support environment.
• Created and tested bash, ksh, shell scripts, Python scripts, and Ansible playbooks, subsequently promoting them to production.
• Identify application patterns and analytics to improve service level objectives.
• Designed automated software updates, change management, and release solutions
• Designed a script for hardware failure monitoring.
• Worked on software solutions, design, code, test, and deliver software to automate manual operational work
• Developed scripts to monitor CPU, memory, and disk utilization.
• Crafted scripts to verify kernel parameters, NIC bonding, SAN path checks, RAID level settings, and firmware versions for BIOS, ILO, Smart Array.
• Installed software packages and applied patches using Chef and Ansible.
• Authored Ansible playbooks for NAS unmount/mount operations, NAS migration and configuration, SAN migration, V2V migration, InfoScale cluster management, file system checks, performance monitoring, and VTM checkouts.
• Created playbooks and deployed them to Dev, UAT, and Production Bitbucket repositories, GIT, Ansible Tower, and Ansible Automation platform using Jenkins CI/CD pipeline.
• Created Requests, Incidents and Changes in ServiceNow and SaaS based on business requirements.
• Opened Requests, Changes, and Incident tickets assigned to various teams.
• Created Changes, Patch records for OS patching/upgrade and firmware upgrades.
• Created and worked on JIRA tickets.
• Experience in analyzing data generated from Splunk, Grafana.
• Streamlined deployment processes for software updates, resulting in reduced downtime and increased productivity.
• Established secure remote access protocols using VPNs or SSH tunnels, safeguarding sensitive data transmission.
• Increased overall system reliability by proactively identifying potential issues through log analysis and troubleshooting efforts.
• Strengthened infrastructure stability with proactive maintenance schedules, minimizing unplanned downtimes.
• Resolved complex technical issues escalated from support teams, maintaining customer satisfaction with prompt service delivery.
• Collaborated with development teams to design and implement scalable infrastructure solutions, supporting company growth and demand.
• Maintained high-availability environments by configuring load balancers, clustering solutions, and failover mechanisms.
• Improved system performance by optimizing Linux server configurations and implementing efficient monitoring tools.
• Elevated performance benchmarks through diligent fine-tuning of system parameters.
• Simplified configuration management tasks with the implementation of automation tools such as Ansible and Puppet.
• Optimized resource allocation within virtualized environments using technologies such as VMWare ESXi or KVM hypervisors.
• Supported application development teams by providing guidance on best practices for Linux-based environments.
• Enhanced security measures for critical systems by conducting regular vulnerability assessments and applying necessary patches.
• Reduced recovery time following unplanned outages by creating comprehensive disaster recovery plans and conducting regular drills.
• Contributed to cost-saving initiatives by evaluating open-source software solutions that provided equivalent functionality to commercial products.
• Enabled continuous integration workflows for developers by setting up build pipelines based on Jenkins or GitLab CI/CD platforms.
• Enhanced team collaboration efforts by documenting standard operating procedures, contributing to knowledge sharing among peers.
• Explored emerging Linux technologies and tools to maintain currency in the field, upholding a cutting-edge infrastructure.
• Assisted in capacity planning efforts by analyzing system usage trends and forecasting future resource requirements.
• Implemented regular backup strategies to ensure data integrity and availability during potential hardware failures or disasters.
• Provided 2nd and 3rd level technical support and troubleshooting to internal and external clients.
• Managed and monitored installed systems for highest level of availability.
• Participated in system development life cycle from requirements analysis through system implementation.
• Monitored and tested application performance to identify potential bottlenecks, develop solutions and collaborate with developers on solution implementation.
• Wrote and maintained custom scripts to increase system efficiency and performance time.
• Managed installation, upgrade and deployment projects and provided on-site direction for network engineers.
• Managed use of various types of databases and configured, installed and upgraded new ones.
• Designed and implemented system security and data assurance.
• Resolved issues related to operational components for LAN, WAN and voice systems.
• Oversaw development and maintenance of organization computer systems and intranet.
• Defined enterprise processes and best practices and tailored enterprise processes for applications.

• Installation, Configuration, Administrating and Troubleshooting of IBM AIX 5.3/6.1, Solaris
• 8/10, Red Hat Linux 4.8/5.x/6.0 OSPlatformss.
•  Installed SOE related Software’s on Red Hat Linux 4.8/5.4, Solaris 10 and AIPlatformsms.
•  Installed AIX 6.1 from Tivoli Provisioning Manger through HMC Console on IBM 9119-
• FHA AIX LPAR.
•  Installed Solaris 5.8/Solaris 10 and created and global zones and created Local zone on top
•  Installed Red Hat 4.8/5.4 OS version on the Hardware HP PROLIANT DL380/DL585
• G6/G7.
•  Installed oracle 10g (10.2.04) on AIX 6.1 OS, configured kernel parameters, setting up
•  Created Volume groups, Physical Volumes and Logical Volumes in AIX 6.1 and 5.3.
•  Created File system, change file system and assigned a space to file systems using smitty and
• SRIKANTH DOMA
• Ph.No: 972-983-3662
•  Installed FXboks, TIscan, sendmail, rinfo, CAeAC, Patrol agent, Tivoli Management
• Agent, Powerbroker and ESM clnt pkgs on AIX 5.3/6.1.
•  Installed Veritas Netback up client on all environments AIX/ Solaris/ Linux.
•  Supported for various Trading applications to Administrate the applications on various
•  Installed Weblogic 9, Websphere Application server 7.0, WebSphere MQ 6.1/7.0 on
• Linux4.8/5.4 and Solaris 8/10
•  Installed supported version of Java, JDK, Jre pkgs for weblogic and websphere pkgs.
•  Created users, groups, provided access to Linux, Solaris, and AIX servers using NIS plus andpbrun.
•  Provided scsu, scsudo access to the users from the LDAP,
•  Installed various pkgs on Solaris, Linux and AIX pkgs, using pkgadd, rpm and installp
•  Worked on frame Migration project from one LPAR p5 to another LPAR p6 on AIX 5.3
•  Worked on migration projects from Solaris 8 to Linux 5.4 and Solaris 8 to AIX 6.1
•  Migrated oracle and Sybase databases from Solaris 8 to AIX 6.1
•  Installed VTM’s on Linux, Solaris, and AIX operating systems to maintain the systems up todate.
•  Woked on failed disk replacement on Solaris veritas file system using vxdiskadm
•  Installed Veritas on Soalris and Linux OS and created disk groups, physical volumes,logical volumes.
•  Troubleshoot application issues, database issues with application and database team.
• Established strong working relationships with clients through exceptional communication skills, fostering trust and collaboration.
• Wrote, reviewed and edited technical document in accordance with template requirements.
• Developed positive working relationships with stakeholders to effectively coordinate work activities.
• Achieved successful project outcomes by maintaining accurate documentation and meeting strict deadlines.
• Reduced project completion time with efficient resource allocation and effective communication strategies.
• Participated in formal internal design reviews of proposed products and components.
• Optimized engineering processes by implementing innovative solutions and streamlining workflow.
• Developed cost estimates and project specifications for proposals.
• Provided input to team lead regarding areas for process and procedural improvement.
• Conducted rigorous quality assurance tests, identifying areas of improvement for product optimization.
• Collaborated on interdisciplinary teams to develop creative, cost-effective solutions for complex projects.
• Reviewed technical drawings developed by CAD technicians and drafters.
• Evaluated vendor proposals for equipment procurement, selecting optimal solutions based on performance requirements.
• Presented technical findings to stakeholders, ensuring clear understanding of project status and goals.
• Enhanced product performance by conducting thorough failure analysis and recommending improvements.
• Initiated and led sustainability task force, integrating eco-friendly practices into engineering projects and reducing environmental impact.
• Conducted feasibility studies for new projects, providing detailed analysis and recommendations that informed leadership decisions.
• Enhanced safety protocols during construction projects, ensuring compliance with national standards and reducing workplace accidents.
• Enhanced team performance by implementing structured onboarding program for new engineers, reducing ramp-up time.
• Developed proprietary algorithm that enhanced data analysis capabilities, leading to more informed decision-making.
• Developed comprehensive maintenance schedule for critical machinery, extending equipment lifespan and minimizing production delays.
• Achieved significant cost savings in material usage through development and application of innovative recycling program.
• Streamlined project delivery processes, implementing agile methodologies that improved team collaboration and efficiency.
• Conducted rigorous quality control checks, ensuring all engineering projects met internal and external quality standards.
• Improved energy efficiency in manufacturing processes by redesigning mechanical systems and components.
• Optimized workflow and increased productivity by introducing cutting-edge engineering software for project management.
• Conducted detailed research and analysis to identify potential improvements in engineering methods, resulting in more sustainable practices.
• Enhanced product reliability by leading team in meticulous design and testing of new engineering software tools.
• Facilitated knowledge sharing sessions on latest engineering trends, fostering culture of continuous learning among team members.
• Negotiated with suppliers to secure high-quality materials at cost-effective prices.
• Reduced downtime during system upgrades with thorough planning and implementation of new hardware across company networks.
• Coordinated with suppliers to secure high-quality materials, negotiating favorable terms that led to reduction in project costs.

Installation, Configuration, Administrating and Troubleshooting of IBM AIX 5.3/6.1, Solaris

• 8/10, Red Hat Linux 4.8/5.x/6.0 OS Platforms.
• Installed SOE related Software’s on Red Hat Linux 4.8/5.4, Solaris 10 and AIXPlatformss.
• Installed AIX 6.1 from Tivoli Provisioning Manger through HMC Console on IBM 9119-
• FHA AIX LPAR.
• Installed Solaris 5.8/Solaris 10 and created and global zones and created Local zone on top of it using the Hardware SUN-Fire V470/V490/V480/V480R/15000
• Installed Red Hat 4.8/5.4 OS version on the Hardware HP PROLIANT DL380/DL585
• G6/G7.
• Installed oracle 10g (10.2.04) on AIX 6.1 OS, configured kernel parameters, setting up
Pagingging space, SQL backtrack, according to the DBA’s requirements
• Created Volume groups, Physical Volumes and Logical Volumes in AIX 6.1 and 5.3.
• Created File system, change file system and assigned a space to file systems using smitty and
SmittyiCommandsands.
•  Installed FXboks, TIscan, sendmail, rinfo, CAeAC, Patrol agent, Tivoli Management
• Agent, Powerbroker and ESM clnt pkgs on AIX 5.3/6.1.
•  Installed Veritas Netback up client on all environments AIX/ Solaris/ Linux.
•  Supported for various Trading applications to Administrate the applications on various
Platformsorms
•  Installed Weblogic 9, Websphere Application server 7.0, WebSphere MQ 6.1/7.0 on
• Linux4.8/5.4 and Solaris 8/10
•  Installed supported version of Java, JDK, Jre pkgs for weblogic and websphere pkgs.
•  Created users, groups, provided access to Linux, Solaris, and AIX servers using NIS plus and
Pbrun.pbrun.
•  Provided scsu, scsudo access to the users from the LDAP,
•  Installed various pkgs on Solaris, Linux and AIX pkgs, using pkgadd, rpm and installp
Commandsmmands
•  Worked on frame Migration project from one LPAR p5 to another LPAR p6 on AIX 5.3
•  Worked on migration projects from Solaris 8 to Linux 5.4 and Solaris 8 to AIX 6.1
•  Migrated oracle and Sybase databases from Solaris 8 to AIX 6.1
•  Installed VTM’s on Linux, Solaris, and AIX operating systems to maintain the systems up to
Date.>date.
•  Woked on failed disk replacement on Solaris veritas file system using vxdiskadm
•  Installed Veritas on Soalris and Linux OS and created disk groups, physical volumes,
Logicallogical volumes.
•  Troubleshoot application issues, database issues with application and database team.
•  Supported 24/7 on call for AIX/Linux/Solaris servers, applications and databases

• Installation, Configuration, Administrating and Troubleshooting of Solaris 10, Red Hat
• Linux 5.x/6.0 OS Platforms.
•  Installed SOE related Software’s on Red Hat Linux 5.x/6.0, Solaris 10 from Tivoli
• Provisioning Manger
•  Installed Red Hat 5.6/6.0 OS version on the Hardware HP PROLIANT DL380/DL585
• G6/G7.
•  Installed oracle 10g (10.2.04) on Linux 6.1 OS, configured kernel parameters, setting up
•  Created Volume groups, Physical Volumes and Logical Volumes in RHEL5.x/6.x
•  Worked on installing packages, setting up user profiles, access and configuring the server for

Platformsorms Pbrun.brun. Logicalgical volumes.

•  Installed Veritas Netback up client on all environments Solaris/ Linux.
•  Worked on restoring files from tapes using Veritas netbackup
•  Supported for various Trading applications to Administrate the applications on various
•  Installed Weblogic 9, Websphere Application server 7.0, WebSphere MQ 6.1/7.0 on
• Linux4.8/5.4 and Solaris 8/10
•  Installed supported version of Java, JDK, Jre pkgs for weblogic and websphere pkgs.
•  Created users, groups, provided access to Linux, Solaris, and using Kerbores LDAP and
•  Provided pbrun,scsu, scsudo access to the users from the LDAP,
•  Installed various pkgs on Solaris, Linux , using pkgadd, rpm commands.
•  Worked on migration projects from Solaris 8 to Linux 5.4 and Solaris 8 to AIX 6.1
•  Installed VTM’s on Linux, Solaris, operating systems to maintain the systems up to date.
•  Woked on failed disk replacement on Solaris veritas file system using vxdiskadm
•  Installed Veritas on Soalris and Linux OS and created disk groups, physical volumes,
•  Troubleshoot application issues, database issues with application and database team.
•  Supported 24/7 on call for AIX/Linux/Solaris servers, applications and databases.

• Installation, Configuration, Administrating and Troubleshooting of IBM AIX 5.3/6.1, Solaris
• 8/10, Red Hat Linux 4.8/5.x/6.0 OSPlatformss.
•  Installed SOE related Software’s on Red Hat Linux 4.8/5.4, Solaris 10 and AIPlatformsms.
•  Installed AIX 6.1 using Tivoli Provisioning Manger through HMC Console on IBM 9119-
• FHA AIX LPAR.
•  Installed Solaris 5.8/Solaris 10 and created and global zones and Local zone on top of it
•  Installed Red Hat 4.8/5.4 OS version on the Hardware HP PROLIANT DL380/DL585
• G6/G7.
•  Installed oracle 10g (10.2.04) on AIX 6.1 OS, configured kernel parameters, setting up
•  Created Volume groups, Physical Volumes and Logical Volumes in AIX 6.1 and 5.3.
•  Created File system, change file system and assigned a space to file systems using smitty and
•  Installed FXboks, TIscan, sendmail, rinfo, CAeAC, Patrol agent, Tivoli Management
• Agent, Powerbroker and ESM clnt pkgs on AIX 5.3/6.1.
•  Installed Veritas Netback up client on all environments AIX/ Solaris/ Linux.
•  Supported for various Trading applications to Administrate the applications on various
•  Installed Weblogic 9, Websphere Application server 7.0, WebSphere MQ 6.1/7.0 on
• Linux4.8/5.4 and Solaris 8/10
•  Installed supported version of Java, JDK, Jre pkgs for weblogic and websphere pkgs.
•  Created users, groups, provided access to Linux, Solaris, and AIX servers using NIS plus and
•  Provided scsu, scsudo access to the users from the LDAP,
•  Installed various pkgs on Solaris, Linux and AIX pkgs, using pkgadd, rpm and installp
•  Worked on frame Migration project from one LPAR p5 to another LPAR p6 on AIX 5.3
•  Worked on migration projects from Solaris 8 to Linux 5.4 and Solaris 8 to AIX 6.1
•  Migrated oracle and Sybase databases from Solaris 8 to AIX 6.1
•  Installed VTM’s on Linux, Solaris, and AIX operating systems to maintain the systems up to
•  Woked on failed disk replacement on Solaris veritas file system using vxdiskadm
•  Installed Veritas on Soalris and Linux OS and created disk groups, physical volumes,logical volumes.
•  Troubleshoot application issues, database issues with application and database team.
•  Supported 24/7 on call for AIX/Linux/Solaris servers, applications and databases
• Simplified troubleshooting processes by creating detailed documentation for system configurations, procedures, and best practices.