Linux Administrator
Resume:
Anusha Lingam
****************@*****.***
Professional Summary
Sr. Linux Administrator & Mainframes Administrator currently working as a Sr. System Engineer with 8+ years of experience in Information Technology field maintaining Mission Critical Enterprise systems, especially in Banking & Financial Domain which mainly includes Administration of Redhat Linux Infrastructure & IBM Mainframe Infrastructure, Tandem and File Transmission setup for Global Banking customers, Certified in Redhat Linux 7 OS Administration & IBM Mainframes.
Experience Summary
Sr. System Engineer in Tech Mahindra Limited, India (Client - MasterCard)
SysOps Technician (Global Technology Infrastructure) in JPMorgan Chase & Co.,
System Analyst in Infosys Limited, India (Client - Bank of America)
Technical Certifications
Red Hat® Certified Engineer (RHCE®) for RHEL 7 OS; EX-200 & EX300.
IBM Mainframe Level-1 & Level-2 Certified.
ITIL® v3 Foundation Certification; EX0-001.
Technical Skills
Redhat Linux (v5, 6 & 7)
Linux Server builds on VMware Virtual Environment using VM templates and Using Kickstart on different types of Hardware’s like IBM X series, HP DL & ML Series, SUN Intel machines & Dell PowerEdge series and Cisco UCS blades.
Creation & Extension of File systems & LVMs, Import & Export of Volume groups.
Performance monitoring and performance tuning, as per the defined policies, based on applications.
Good Working Knowledge of server Hardware technologies and the best practices for their implementation.
Building the custom VM templates for multiple OS versions of Linux on VMware ESX Environment.
Installation & deployment of 3rd party Applications / Software’s based on the requirement from application teams.
OS Hardening and SUDO Configuration for securing the Super-user access control.
Implementing, Configuring the Hardware & Software RAID Levels (0, 1 & 5).
Network Configuration & Administration & Configuring network bonding with multiple Ethernet adapters.
Patch & Swap Management, User administration & Printer management.
Knowledge in managing Networking technologies like Ipv4, Iptables with Ipv6, DNS, NIS, NIS+, DHCP & HTTP (Apache), LDAP etc.,
Troubleshooting OS, Booting process & Hardware related Issues.
Configuration of MySQL and queries based on SQL.
Administration & troubleshooting of Linux File systems running with ext2, ext3, ext4 & JFS.
Backup and Recovery of Operating system & data volumes using tar, Ufsdump & Ufsrestore utilities.
User & Group administration and integration with LDAP.
Setting up Security policies for the users and implanting SUDO Access for additional authentication in command execution process.
OS Patching as per the policies defined and OS level upgrades on servers running with RHEL & CentOS.
Basic knowledge on deploying and troubleshooting Puppet modules and configuring the hosts in foreman on UNIX machines.
Automatic scheduled patch deployments using BigFix Automation tool.
Physical-to-Virtual (P2V) & Virtual-to-Virtual (V2V) migrations for Linux servers.
Configuring the DAS, NAS & SAN based storage in Linux systems.
Configuring yum & yum repositories.
Mainframes & Tools
Made enhancements in COBOL and CICS programs according to the project requirements.
Monitoring the Mainframe batch job abends and resolving them within the defined SLA’s.
Following the SDLC process for the new requirements in the project and completing the process.
Execution of COBOL and C programs in Mainframes and Tandem and created Netbatch jobs.
Providing Operation Support & Maintenance of below Mainframe Tools.
Settlement: It is an APTE Settlement process (Bank of America) that hard posts and balances the customer transactions through mainframes. Written JCLs and COBOL programs that hard posts the transaction for the customers of Bank of America.
Level - 2 & Level - 3 Support: Base24 ATM/POS Level2 Support reports and monitors the BOA ATMs all around and leads the triaging calls when severe issues occur and manages the smooth flow of transaction processing, researches on Tandem and send the analysis for further enhancements to Level3.
Base24: Base24 is a continuously developing ATM supporting application which authorizes and routes the debit card transactions. Worked on Base24 files CAF, PBF, ILF and resolved production issues. Monitor the ATM status through ATMTA, SSTOB and starting and stopping stations, processes using NCPCOM.
APTRA: APTRA is the front end for transaction processing at the ATM.
File Transmission setup for Global Banking customers.
Connectivity establishment & Troubleshooting with the customer’s network according to the protocol being used Connect Direct, InterPel, FTP, SFTP, FTPS.
Debugging mainframe production abends and creating processes according to customer’s requirement.
Troubleshooting customer’s production or test failures through UNIX servers and making sure of successful file transmissions.
Professional Experience
Client: MasterCard Incorporated (American multinational financial services)
Company: Tech Mahindra Limited
Designation: Sr. System Engineer
Duration: Sep 2012 – Till date
•Level-3 support providing Operational Support & Services to MasterCard Global Infrastructure for Server Maintenance, Monitoring, Patching activities & File Transfer Protocol Issues.
•Linux Server Builds using Kickstart installation method on Physical & VM templates on Virtual (VMWare) ESX Hardware and releasing them into production.
•Applying OS patches and upgrades on a regular basis using manual and Bigfix Automated tool and upgrading administrative tools and utilities. Configuring / adding new services as necessary.
•Performing daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups.
•LVM Configuration, LVM Snapshots & Extensions of volume groups and logical volumes, by adding the new disks / LUN’s based on the requirements.
•Server Provisioning, decommissioning and troubleshooting issues related to OS and Hardware level.
•Logging case with Redhat and other multiple vendors and working with them on the RCA’s.
•Preparing the Daily monitoring scripts (Power Shell and Perl Scripts) and deploying in the servers for automation of scheduled and collection of performance monitoring of the servers.
•Maintaining the ITIL process standards and In-depth knowledge on ticketing tools like Peregrine Service Centre, BMC Remedy etc.,
•Providing technical expertise in cross-functional and intra-departmental efforts. Performing the root-cause analysis of technical incidents.
•Maintaining the Wiki database for the new process and procedures, as per the defined standards.
•Installation of 3rd Party Applications like Websphere, Weblogic, Apache HTTP Server and Apache Tomcat etc., based on client requirements and maintaining the scripts for automation & scheduled jobs.
•Majorly handing the Production environment for Linux OS and resolving the issues, within the defined timelines.
•Involved in Enterprise change management (ECM’s) and co-ordination with LOB’s to implement them successfully.
•Co-ordination with the application teams to upgrade the existing environment to CentOS 7 on VMware Environment.
•Working with IT Compliance team to eliminate and fix the risks involved in the UNIX environment for PCI / SOX Servers.
•Dealing with critical clients and applications by leading the bridge calls handling the vendors like HP, Visa, MasterCard, NYCE, etc and guide resolving the P1 Sev issues.
•Enhancements and analysis on the crontab jobs on Linux / UNIX servers.
•Prepare & maintain Run Books & Process Flows of services and review them on on-going basis to ensure functional & procedural changes/amendments are tracked to avoid any process deviation.
•Mentoring activities including helping fellow engineers solve problems.
Company: JPMorgan Chase & Co., (American multinational banking & financial services company)
Period: May 2011 – Sep 2012
Designation: Sys Ops Technician
• Provided Operational Support & Services to JPMorgan Chase Global Technology Infrastructure for Server Maintenance, Monitoring & Patching activities.
• Working closely with customer's Senior Infrastructure Lead and service provider onshore and offshore extended teams, to see through execution of activities in support of a specific set of infrastructure systems that are vital to the organization's daily business operations.
• Involved in Enterprise change management (ECM’s) and co-ordination with LOB’s for successful implementation.
• Responsible for sending the daily, Weekly and Monthly reports to the Management, as per the guided timelines.
• Maintaining Server database to include for OS Patching and Firmware upgrades in order to schedule in each Patching cycle.
• Prepare & maintain Run Books & Process Flows of services and review them on on-going basis to ensure functional & procedural changes/amendments are tracked to avoid any process deviation.
• Engage in formal communication for all ECMS requests against agreed scope, specification & plan and be responsible for setting up clear communication channels across LOB’s.
• Obtaining the list of security vulnerabilities on the servers from ESM Managers and remediating them.
• Involved in Server Management, Consolidating reports, OS Administration, Patching & Firmware Upgrades, VMware ESX Administration and reboots, and risk remediation in UNIX based environment.
• Active role in daily and Weekly review meetings with the JPMC Higher Management.
• Understanding the technical estimations set for new projects and prepare run books for same.
• Maintaining a track of servers on weekly basis, having vulnerability and resolving them at the earliest using various security monitoring tools like ESM Manager, HP Opsware, SunMc Monitoring tools.
• Debugging mainframe production abends and creating processes according to customer’s requirement.
Creation of new file transmission set-ups for new customers of JPMorgan Chase.
• Establishing connectivity with the customer’s network according to the protocol being used Connect Direct, InterPel, FTP, SFTP, FTPS.
• Troubleshooting customer’s production or test failures through UNIX servers and making sure of successful file transmissions.
• Leading the team in offshore location and mentoring on Technical issues.
• Investigating the incidents and provide work-around resolutions to the JPMoragan internal teams.
• Working on various systems maintenance activities including software and hardware upgrades.
• Working with the teams responsible for the technology to plan out system upgrades and other major upgrade initiatives.
Client: Bank of America (American multinational banking and financial services corporation)
Company: Infosys Limited
Period: June 2008 – May 2011
Designation: System Analyst
Active Involvement in Four Different Projects supporting the ATM applications for Level2 and Level3 Production Support.
Troubleshooting any new and ongoing system issues, together with service provider level 1 support team, communicating closely with support teams from other areas of technology when necessary, and escalating to customer's level 1 when appropriate, towards resolution of the incident within prescribed service level agreements, and beyond incident closure on root cause analysis activities when necessary.
Performed the role of coder and tester while making enhancements in the project.
Automated the daily reports and saved manual effort, time and made the work more accurate.
Made enhancements in COBOL programs according to the project requirements.
Analyzing the production issues and resolving them within SLA.
Following the SDLC process for the new requirements in the project and completing the process.
Executed COBOL and C programs in Tandem and created Netbatch jobs.
Leading the client bridge calls handling the vendors like Visa, MasterCard, NYCE, etc and guide resolving the P1 Severity issues.
Guiding the team on the work they are doing and training them on new applications.
Conducting team building activities.
Proactively managing shifts for the team.
Coordinating with the on-site person and leading the team with their/client new proposals.
Providing Level -3 support for the below applications.
oBase24: Base24 is a continuously developing ATM supporting application which authorizes and routes the debit card transactions. Worked on Base24 files CAF, PBF, ILF and resolved production issues. Monitor the ATM status through ATMTA, SSTOB and starting and stopping stations, processes using NCPCOM.
oSettlement: It is an APTE Settlement process that hard posts and balances the customer transactions.
oAPTRA: APTRA is the front end for transaction processing at the ATM.
oLevel2 & Level3 Support: Base24 ATM/POS Level2 Support reports and monitors the BOA ATMs all around and leads the triaging calls when severe issues occur and manages the smooth flow of transaction processing, researches on Tandem and send the analysis for further enhancements to Level3.
Technical Trainings
Red Hat Enterprise Linux 7 OS Administration Training from Redhat, India.
IBM Mainframes administration training from IBM, India.
Awards and Achievements
Employee of the year award from Infosys Ltd.,
“Pat on the back” award from Tech Mahindra Limited, India
Received customer appreciations from multiple clients, throughout the career.
Academic Qualifications
Bachelor of Technology Electrical & Electronics Engineering from J.N.T.U. India.
Contact this candidate