Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

RAMAKRISHNAN SIVASUBRAMANIATHAS

CHENNAI,TN

Summary

Dynamic Senior Technology Services Engineer with extensive experience at Walmart Inc., excelling in Python scripting and change management. Proven track record in automating processes and enhancing system reliability, leading to successful migrations and improved operational efficiency. Strong leadership skills foster team collaboration and drive productivity in high-pressure environments.

Overview

14
14
years of professional experience
1
1
Certification

Work History

Senior Technology services Engineer

Walmart Inc
08.2021 - Current
  • Monitor the 1P pipeline and ensure the items are transactable onsite without any issues
  • Demonstrated solid management skills, proficient in leading and mentoring individuals to maximize levels of productivity, while forming cohesive team environments
  • Worked on Automation using python scripts for day to day proactive monitoring for item health and create the spark Jobs for data bootstrapping between the RT’s
  • Worked with Dev team to onboard the complete 1P item setup flow into Walmart internal tool for real time monitoring for any issues
  • Helped business to review and validate the business rules on Daily basis to make sure there is no breakage in systems and site impact
  • Supported the business during the new initiatives such as B2B migration, GLASS Project migration, Photo Items migration, Petrx Initiative, Vision & Frames initiative
  • As part of Dataops, Annual Event (Black Friday Sale, Thanksgiving, Christmas, cyber Monday), In-Store event, Associate discount event to validate the items health and make sure the items are transactable and live during the event

Senior Associate

Cognizant Technology Solutions
01.2011 - 08.2021
  • Administration in Unix/Linux environments, with hands-on expertise in scripting and systems integration, in a Java environment.
  • The primary developer will create and implement the scripts using Python and JSON to feed the Control Tower application, in order to monitor critical flows and server monitoring.
  • Implemented 20+ use cases using ServiceNow as a service catalog using JavaScript to reduce the inflow and manual effort as a part of automation.
  • Migrated over 50 SHA-256 certificates for all the Walmart Finance applications.
  • Integrated 25+ applications and 100+ critical job flows with Control Tower (Cognizant proprietary tool to monitor SLA, server health) using Python, Linux script, and Windows batch process.
  • I worked with the Migration team to finalize the architecture for the Azure Cloud migration for more than 10 finance applications, and the backend process to WNCP as the application SME.
  • Client: Wal-Mart Stores, Inc.
  • May 2016 – Aug 2021.

Associate

Cognizant Technology Solutions
06.2014 - 05.2016
  • Actively participated in estimation for migration from Unix to Linux, Win2K12 migration, database migration, etc.
  • Review the design and code developed by team members for migrations.
  • Initiate and oversee the migration projects to Linux/Java technology to ensure the system is distributed, more stable, and reliable to handle a high volume of users.
  • Migrated 20+ applications from the Unix to the Linux environment.
  • Migrated four large-scale applications from Windows Server 2003 to Windows Server 2012.
  • ClaimZone Migration - Involved in development activities for over 100 scripts and more than 350 C and C++ compiled codes from the Unix to Linux environment in the risk area.
  • Drive major activities, like Tumbleweed migrations, across applications and systems in the risk area.
  • Client: Walmart Stores, Inc.
  • June 2014 – May 2016.

Programmer Analyst

Cognizant Technology Solutions
04.2011 - 06.2014
  • I had been driving the Problem Management and Change Management processes and made sure that 100% change success rates were achieved for the portfolio.
  • Incident analysis, allocation, monitoring, and queue management are some of the key tasks that are performed in a daily role.
  • Conducted meetings regularly within the team and higher management, and took necessary actions for escalations.
  • Delivered the artifacts within strict timelines.
  • I made sure the rooster and shift plans were planned and handled the absence of team members very effectively.
  • I have been instrumental in planning for disaster recovery and BCP when the disaster hit the offices a couple of times.
  • Led the Peak Planning and Delivery for the customer in Finance, representing Cognizant, and ensured no delivery slippages.
  • Handle/manage incident management, problem management, and root cause analysis through the BMC Remedy or ServiceNow tool.
  • Provide resolutions within SLA, solve problems quickly, acknowledge the issues, and provide consistent updates to business and management.
  • Anticipate future problems, and create problem tickets to provide root cause solutions.
  • Enhance the current workflow, and provide a better solution system to the business.
  • Handle issues in a high-critical environment, provide consistent updates to customers, and keep them updated.
  • Handle business calls along with the team, coordinate, and engage them in each stage of the project.
  • Handled 30+ critical applications that impact the Walmart business on a daily basis.
  • Analyzing and fixing the critical defects in the production environment.
  • Client: Wal-Mart Stores, Inc.
  • April 2011 – June 2014.

Education

Bachelor of Engineering - Electronics And Communications Engineering

Erode Sengunthar Engineering College
05-2010

Skills

  • C
  • Shell script
  • Linux/Unix
  • Core Java
  • Jenkins
  • Looper
  • DB2/Informix/NOSQL(Cassandra)
  • GitHub
  • Python scripting
  • ServiceNow
  • JIRA
  • AWS
  • WNCP
  • GCP
  • Data monitoring
  • Change management
  • Debt management
  • Predictive Intelligence Framework

Certification

  • Servicenow Certified System Administrator, #20326450
  • AWS Certified Cloud Practitioner, #R8D2W8BL2J411HK5
  • ITIL/ITSM

Timeline

Senior Technology services Engineer

Walmart Inc
08.2021 - Current

Associate

Cognizant Technology Solutions
06.2014 - 05.2016

Programmer Analyst

Cognizant Technology Solutions
04.2011 - 06.2014

Senior Associate

Cognizant Technology Solutions
01.2011 - 08.2021

Bachelor of Engineering - Electronics And Communications Engineering

Erode Sengunthar Engineering College

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RAMAKRISHNAN SIVASUBRAMANIATHAS