SUMMARY

• Functioned as primary Linux Administrator and Application Support Specialist to maintain system services and performance for the past 4years and counting - Planned and executed Linux system changes and upgrades.

TECHNICAL SKILLS

Operating Systems: Sun Solaris 9/10/11, RED HAT LINUX (RHEL 5/6/7), Centos 4/5, Ubuntu

Applications: Jboss, Splunk, Apache, Tomcat

Scripting Languages: Shell scripting such as Korn Shell (KSH), Bourn Shell (SH), C Shell (CSH) and Bash Shell (BASH)

Networking Services: NIS, NFS, AutoFS, DNS, SSH and Send mail.

Virtualization Products: VMware, VSphere, VCenter Server, VMware Server, Xen, Solaris Zones.

Ticketing Tools: HP Service Manager, JIRA, Remedy, Service Centre and OPAS.System Manager 8.0

PROFESSIONAL EXPERIENCE

Confidential

Systems Administrator/Production Support Specialist

Responsibilities:

• Extracted complex Fields from different types of Log files using Regular Expressions.
• Created Search Commands to retrieve multiline log events in the form Single transaction giving Start
• Line and End Line as inputs.
• Created HTML dashboards with third party java scripts and css to create beautiful visualizations
• Field Extraction, Using Ifx, Rex Command and regex
• Guarantee high accessibility & execution trough flat scaling and burden adjusted segments.
• Prepared, arranged and tested Splunk search strings and operational strings. Created and configured management reports and dashboards.
• Created EVAL Functions where necessary to create new field during search run time.
• Provide inputs for identifying best fit architectural solutions - deployment for Splunk project.
• Splunk Engineer/Dashboard Developer responsible for the end-to-end event monitoring infrastructure of business-aligned applications.
• Experience in setting up dashboards for senior management and production support- required to use SPLUNK.
• Maintained and managed assigned systems, Splunk related issues and administrators.
• Create presentation layers for Technical, Business and Executive Management showing environment operational health based on Key Performance Indicators
• Manage existing application and create new applications (visual and non-visual)
• Manage SPLUNK user accounts (create, delete, modify, etc.)
• Create data retention policies and perform index administration, maintenance and optimization.
• Work with third party application, hosting and CDN providers to integrate data feeds to a centralized Splunk platform
• Provide overall management of the SPLUNK platform
• Assist with design of core scripts to automate SPLUNK maintenance and alerting tasks. Support SPLUNK on UNIX, LINUX and Windows-based platforms. Assist with automation of processes and procedures.
• Administering Splunk and Splunk App for Enterprise Security (ES) log management.
• Standardize Splunk agent deployment, configuration and maintenance across a variety of Windows, Linux and Mainframe log platforms.
• Troubleshoot Splunk server and agent problems and issues
• Assist internal users of Splunk in designing and maintaining production-quality dashboards.
• Mentor users and other groups on their use of Splunk
• Monitor the agent and server infrastructure for capacity planning and optimization
• Design core systems performance and troubleshooting logs
• Support Splunk on Linux and Windows-based platforms.
• Perform data mining and analysis, utilizing various queries and reporting methods
• Solve complex Integration challenges and debug complex configuration issues
• Technical writing/creation of formal documentation such as architecture diagrams, technical designs, and SOPs
• Strong understanding of Splunk configuration files and architecture
• Knowledge of advanced search and reporting commands
• Demonstrated ability to create complex dashboards, forms, and visualizations
• Understanding of System Log Files and other structured and non-structured data
• Supported and maintained 100+ servers based on CentOS, RedHat.
• Provided assistance with software and hardware issues, in addition to troubleshooting application errors and network connection problems
• Managed Storage Area Networks in an enterprise environment
• Implemented and designed disaster backups and recovery plans
• Experience building custom Drupal modules
• Was implementing monitoring based on Nagios.
• Dealt with the Infrastructure environment like DNS/NIS/CIFS/NFS/DHCP etc.
• Used Ansible to automate routine administration tasks such as analyze, building, configuration, deploying, fixing, installation, load testing, migration, optimization, troubleshooting.
• Network design, implementation, optimization and maintenance
• Provided expertise and support on networking issues (Ethernet)
• Implemented, configured and supported backup and archiving solutions
• Installed, configured and troubleshoot application bottleneck by viewing logs
• Provided regular maintenance including OS patching, firmware updates (routers, VoIP adapters and other devices firmware), hardware upgrades and configuration changes
• Proposed, planned and realized a Linux-based solution of centralized file storage with user-level and group-level security
• Setting up the new servers and maintaining servers (Apache, tomcat).
• Tier II level of production support and SME
• Maintain the log servers which have over 20 Million records.
• Does the log rotation and save logs for the product analysis.
• Creating clusters for the application and log servers.
• Creating security groups on the EC2 instances.
• Worked on load balancers for both windows and Linux environments.
• Customize and cross compile Linux kernel for the hardware which they use in the product (PPC).
• Does a health check and cloud watch on the servers.
• Support and detailed troubleshooting of Linux in a 24 x 7 Environment.
• Worked on upgrades without downtime using yum and as well as setting servers locally for upgrades.
• Maintain and support custom applications within development, pre-production and production environments.
• Combine open-source and commercial technologies to build services that automate data collection and reporting
• Deployed latest patches for Sun, Linux and Application servers.
• Implemented Virtualization using VMware, HyperV. Installed VMware ESX server on Dell Servers and configured solaris 9/10/ RHEL 6 & 7 / Windows 200 virtual machines for various applications.
• Troubleshoot the TCP/UDP traffic using tcpdump, snoop and wire shark for analyzing the voice packets on the vlan. Able to decode the packets into binary and also able to read the hex codes.
• Administered Linux servers for several functions including managing Users, Groups, and permission for each groups and users.
• Installed and configured Sudo for users to access the root privileges.
• Worked with different hardware and software vendors to troubleshoot the hardware and software problems.
• Managing cron jobs, batch processing and job scheduling.
• Support and detailed troubleshooting of Sun Solaris in a 24 x 7 Environment.
• Leverage the scale and complexity of the system infrastructure to solve problems for supported customer
• Co-coordinating with the customers vendors for any system upgradation and giving the exact procedure to follow up.
• Scheduling the daily/weekly/monthly backups.
• Patching up the system to the latest version as per the recommendations.
• Monitor the health of the servers, Operating system, database and the network.
• Maintenance of Hard disks (Formatting and Setup, Repair from crashes).
• Regular disk management like adding/replacing hard drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
• Creating users, assigning groups and home directories, setting quota and permissions; administering file systems and recognizing file access problems.
• Maintaining appropriate file and system security, monitoring and controlling system access, changing permission, ownership of files and directories, maintaining passwords, assigning special privileges to selected users and controlling file access, monitoring status of process in order to increase the system efficiency, scheduling system related and cron jobs.
• Managed windows servers, configured domain, active directory; created users and groups; assigned permission to the groups on the folders.
• Serve as a Subject Matter Expert for other Operations and company team members.
• Contribute as part of a high-performing team to ensure Operational Excellence.
• Participate in 24/7 on call rotation
• Was responsible for standard automatic monitoring and supervised corporate systems (examples here) and support services.
• Created schedules and prepared internal and data-system reports for backup management.
• Installed and configured all the Linux servers in the network per specifications of clients.
• Monitored the servers and Linux scripts regularly and performed troubleshooting steps Tested and installed the latest software on server for end-users.
• Attended calls related to customer queries and complaints, offered solutions.
• Performed routine checks on the Linux servers of the firm.
• Develop exceptional relationships with co-workers, management and end users.
• Assisted in integration and administration of portal applications in company infrastructure domain.
• Provided technical assistance for troubleshooting and application of patches and system monitoring.
• Implemented procedures for configuration and deployment of production JBoss applications.
• Conducted investigation, analysis and resolution methods of performance issues relating to production applications.
• Monitored production portal application to suggest and implement incident prevention and resolution techniques.
• Prepared reports and documents from data collected by monitoring and performance metric activities.
• Suggested continuous enhancements, maintenance and integration functions of software and hardware components.
• Resolved problems relating of system hardware and software components and operator issues