Rajendra Warrier Email & Phone Number

Coppell, Tx, Us

Mumbai, Maharashtra, In

Key Accomplishments:1) Managed multiple tableau environments (PROD, TEST, and Sand Box) with varied topology.2) Tuning, Configuring Tableau Servers in 3 different Windows environment (Prod, QA, and Sandbox).3) Authored Scripts to manage Production instances in areas of Monitoring and Tuning,4) Backup/Recovery Space/User/Group Management along with end-user ticket resolutions.5) Upgrading and patching of Alteryx servers as and when needed.6) Work done on regular server monitoring, troubleshooting, and optimization of Tableau Server(s) to ensure high availability and optimal performance.7) Authored Tableau Custom Administrative Views to get a view of the Tableau Landscape8) Implemented CMT (Content Migration Tool) to migrate content9) Reduced Stale Content, License Consumption, and constant collaboration with end-users10) Resolved trouble tickets and Incident reports. Authored Python script to download content

Key Accomplishments:1) Administered Tableau Servers which comprised of installations,topology management, and tableau upgrades.2) Handling multiple sites and servers with varied topology.3) Authored Python code base tools to interact with Facebook internal4) Used CHEF configuration tool to maintain tableau server changes instead of manual intervention5) Used SPLUNK/and then internal meta tools for tableau logging purpose.6) Provided tableau support to end-user/customers to resolve tableau trouble tickets.7) Created documentations for Tableau ecosystem architecture, and administration tasks.8) As part of Tableau governance: -- Authored data pipelines, Python scripts for tableau content cleanup, and license usage -- Collaboration with end-users to improve user-experience and upkeep the tableau ecosystem9) Authored a Python utility to Analyze tableau workbook performance10)Onboarded a tableau-outage tool named Palette Trust and integrated with Tableau serversEnvironment:Tableau, CHEF, InfraAsCode, Python 3.x, Mercurial and GIT repos, Forseti, and a host of facebook specifictools like chatbots, internal messaging systems, and much more…

Bangalore, Karnataka, In

Key Accomplishments:1) Updated all technical, infrastructure, user documents reflecting applied security compliance protocols2) Performed cross-functional training and knowledge transfer to team members.3) Authored and Managed Security Data Model synchronized and integrated with Active Directory.4) Supervised all automated monitoring and server job process scripting, logs, backup data frequently.5) As an ongoing task, maintained Tableau Server administration, with upgrades and fix-packs.6) Solved trouble tickets and Incident reports leading to reduced customer complaints by 95%.7) Created documentations for Tableau ecosystem architecture, and administration tasks.8) Communicated with end-users to clean-up, archive obsolete report objects, and data sources.9) Worked on Governance/Data auditing for Cognos Analytics BI Environment: Tableau, JIRA, Verizon VAST-APM Tools, SQL Server, Windows Servers 2008 R2.

Basking Ridge, Nj, Us

1. As a Cognos and Tableau custodian, I spearheaded the Reporting Migration to Verizon Portfolio.2. As an ongoing task, continued Tableau/Cognos Server administration, with upgrades and fix-packs.3. Resolved trouble tickets & Incident reports, with proper communication & follow up with end users. 4. Managed entire IBM Cognos and Tableau Software Licensing Usage.5. Worked with Verizon Compliance and Security Team to put in place additional security controls to customer data based on compliance needs within telecom industry and government requirements.6. Upgraded Hardware and Software Security by doing a Application Scanning, finding Vulnerabilities, and resolving it by applying Security Updates like TLS 1.27. Updated all technical, infrastructure, user documents based on applied security compliance protocols8. Designed, Developed, Implemented Dashboard based on Verizon Revenue Assurance Security Model.9. Developed and Published Customer Churn Data Analytics metrics to prevent revenue loss and also increase the opportunity for up-sell and cross-sell10. Consolidated IBM Cognos Analytic and Tableau Security Roles, Upgraded all Servers in all three environments namely Development, Test, and Production to match Verizon Compliance Rules.

Herndon, Va, Us

Key Accomplishments: (As a COGNOS ANALYTICS and Tableau Administrator and Architect)1. Migrated IBM Cognos from LINUX to WINDOWS based systems. (3 different Environments)2. Started off with Tableau 8.x and upgraded to Tableau 2018.x gradually. (3 different Environments)3. Set Single sign On and Implemented a Enterprise-Wide Security Model for both Tableau and Cognos.4. Upgraded Tableau and Cognos Server ecosystem with recent available upgrades and fix packs.5. Developed Standard Operating Procedure for Reporting Team and Business Users.6. Wrote Best practices document for Tableau and Cognos Reporting needs.7. Developed Cognos SDK scripts with server monitoring functionality. 8. Wrote batch scripts for Server cleanups, and backups through TCM, TABCMD, and TABADMIN.9. Managed and monitored Cognos and Tableau Licensing and Usage, reducing overheads by 30%.10. Wrote automated scripts for Server cleanups, and backups. Tweaked and Tuned server processes.11. Upgraded Server Topology with increase in User Base. Tweaked, Tableau Server/Node processes.12. Improvised slow Cognos Reports, by analyzing Framework Models to verify joins/underlying SQL13. Wrote several Custom views by interacting with back-end PostgreSql repository.14. Solved technical issues like slow Extract, Workbooks, Views, and Dashboards.Key Accomplishments: (As a DATAWAREHOUSE SPECIALIST)1. Worked cross-functionally across business to understand, gather, analyze data from multiple sources.2. Developed technical documentation, warehouse process overviews and data flows, ETL Mappings.3. Data analysis and mapping was done to ensure all source system nuances are accounted4. Compiled data from segments like accounting, marketing, order entry, provisioning, and sales.5. Designed and Implemented data marts for Order Provisioning. Used Waterfall SDLC.

Worked as Senior Analyst Programmer, MIS DEPTPowerbuilder with PFC, HTML, Java, and SQL ServerBusiness Analyst and Report Developer

Worked as a Powerbuilder Developer and Web DeveloperDesigned, Developed, Maintained a DOI Website for pre-employment random drug testing data collection and reporting. Used HTML, Classic ASP, Powerbuilder, SQL Server, and Sybase both as backend database.

Post Graduate Diploma, Computer Science

Bachelor’S Degree In Science, Bombay University, Chemistry