Data Science Analyst

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www.linkedin.com/in/momarikar

(LinkedIn)

Top Skills

GitHub

R (Programming Language)

Shell Scripting

Mo Marikar

Data Science Analyst. R, Python, Jupyter. Linux shell scripts. SQL., Github

Raleigh-Durham-Chapel Hill Area

Summary

Specialist using R scripts for visualizing data, e.g., box plots for displaying the median.

Prediction modeler in R and Python using RStudio and Anaconda's Jupyter environment.

Linux shell scripts writer for monitoring key performance metrics. Create SQL scripts for MySQL, Postgres, and Oracle databases. Performance characterizations using LoadRunner.

QA MATLAB/Octave scripts.

Experience

EPA, ORD, Computational Exposure & Toxicokinetics Branch Data Science Analyst

January 2017 - Present (8 years 4 months)

Research Triangle Park

Produce boxplots embedded in Violin plots for PFAS (forever chemicals) using ggplot2 to automate data extraction from Excel spreadsheets. Validate R vignettes in R Markdown for the caco-2 assignment supporting research into intestinal barrier function by modeling absorption, metabolism, and transport in vitro..

Test the MCSimMod package's ability of compile and link C programs into R code.

Performance test alternative parallel computing mechanisms with R/RStudio on Linux for a Pharmacokinetic PK model of 209 variants. Use Visual Studio Code for the setting up and testing of of github environments.

MetLife

APM (Applications Performance Monitoring) Consultant February 2015 - August 2015 (7 months)

Raleigh-Durham, North Carolina Area

Use Gomez Dynatrace Synthetic, Real User Monitoring and HP RUM for gathering application performance metrics related to availability, response time Page 1 of 7

and hits. Utilize Splunk dashboards for examining logs using queries and for displaying metrics obtained from different tools.

Tasks include metrics data inputs for the monthly executive report, root cause analysis for applications failing thresholds, creating new Synthetic tests and interfacing to Dynatrace UEM (User Experience Management) for classifying user perceived response time as frustrating, satisfying or tolerating. Instrument Web (HTML) code using JavaScript.

Cisco

Test resource

July 2014 - August 2014 (2 months)

RTP

Manual test Cisco's Cloud products. Linux environment. Raytheon

Performance Engineer

March 2014 - March 2014 (1 month)

Use Loadrunner protocols for automating virtual users for different applications.

Correlate and parameterize.

Implement single script so that both the Migration and QA Test environments could be used..

Omnicare Inc. through Computer Sciences Corp

Performance Loadrunner Consultant

January 2014 - March 2014 (3 months)

Cary, NC

Using the Loadrunner, Truclient protocol. Product is a healthcare portal targeting pharmacies that provide Medicare/Medicaid with monthly prescriptions

Deutsche Bank

Performance Resource

July 2013 - December 2013 (6 months)

Used Performance Center, Linux, Toad for Oracle, and JMS for Trading related applications.

Elster

Consultant Resource for APIs and Web Services

May 2013 - July 2013 (3 months)

Raleigh NC

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Use SAHI freeware to test APIs and Web Services pertaining to the billing for utilities. Manual testing of new firmware/software for water meters. Raytheon

Performance Resource

February 2013 - March 2013 (2 months)

LoadRunner resource for Documentum WebTop API to work on LoadRunner 11.51. It did not work on Performance Center 11.51. IBM

Performance Resource

January 2013 - January 2013 (1 month)

Research Triangle Park

Use LoadRunner to characterize the performance of internal applications Fidelity Investments

Performance Resource

June 2012 - October 2012 (5 months)

Cary, NC

Performance characterization of portal applications. Architectured new tests for printing pdf and excel reports on positions. Use Oracle database sql for test data selection. Validate test data from the mainframe. Implemented tests using LoadRunner. Worked with the product development team for determining the cause for JVM leaks via the use of Wily Intrascope. Constant Contact

Quality Engineer, Performance

December 2011 - April 2012 (5 months)

Waltham, MA

• Create, run, analyze and publish performance load test results for Constant Contact products which are in Continuous Integration using LoadRunner or JMeter .

• Use LoadRunner 11 and JMeter for load testing the Java apps.

• Create automated Rest web services tests with LoadRunner.

• Run Selenium RC based QA functional tests through Hudson.

• Create Eclipse based java code for creating encrypted passwords for existing data to be subsequently used by LoadRunner.

• Use SQL queries for gathering test data.

• Parse logs

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Digital Reef, Inc

Quality Engineer, Performance

August 2011 - October 2011 (3 months)

Boxborough MA

Characterize the performance of web services for eDiscovery using soapUI, shell scripts,and IOzone. Grid computing is utilized with a transition to SaaS. Compare performance of bare metal with ESX on Linux RH. Wellington Management

QA/Performance Consultant

March 2011 - July 2011 (5 months)

Completed Calypso based JNLP app QTP automation for the response time and invoked it from LoadRunner using the GUI protocol. Quality Center is used for archival.

Loadrunner automation for web based product management app required correlation and sql scripts for state initialization. Nokia

Performance Consultant

October 2010 - March 2011 (6 months)

Characterize the performance of web services using SoapUI and LoadRunner

(Performance Center). Integrate LoadRunner with Python. EnerNOC

Performance Engineering Consultant

July 2010 - October 2010 (4 months)

Use LoadRunner to validate the performance of Agile build releases for the GUI based Action Call Center, Network and Exception management, and Cognos Reports, Integrated LoadRunner with Dynatrace for profiling. Did a POC for invoking LoadRunner through Quality Center. Virtusa

Senior Performance Consultant for JP Morgan Chase

November 2009 - July 2010 (9 months)

Performance SME for financial (Treasury) services

• Work with geographically distributed partners for root cause during application server and database updates using scripts that emulate production usage and by observing Oracle database related events via a dashboard

• Automate the maintenance of test user SSL certificates using batch files Page 4 of 7

• Maintain high volume (2700 users) LoadRunner scripts for host to host Treasury operations used in regression testing builds

• Do database related cleanups using SQL Developer

• Use SQL queries to verify staging of files

• Use Sitescope for metrics monitoring

• Create UNIX shell scripts for automation

Staples

Lead QA Analyst Consultant

July 2009 - October 2009 (4 months)

eCommerce Order Management. Yantra implemented on WebSphere Business Integrator. Lead QA for web services serviced by AS400 APIs, GUI based client and feeds/analytic reports for DB2 based Data Mart. Fidelity Personal Workplace Investing, Marlborough Director Capacity Planning

November 2005 - November 2008 (3 years 1 month)

Delivered Capacity Analysis inputs by performance testing web services for Defined Contributions and Special Projects by test planning, workload development, metrics analysis, data mining, proof of concept, and root-cause analysis.

• Internal distributed workflow communications. Worked with the developer in getting request/response pairs using SoapUI for each method. Then modified the snippets with LoadRunner XMLAPIs for automation.

• Messaging. Profiled component environment weaknesses and optimized capacity server solutions resulting in the accelerated acceptance of Unica Messaging

• Content Servers. Set up and configured EMC’s Documentum Webtop APIs for profiling the Content Server.

• JVMs. Collaborated with Operations on root cause analysis for memory leaks, by automating peak volume usage using LoadRunner and the IBM Assistant tool to pin point JVM memory leaks

Fidelity Systems Company, Boston

Performance Architect

March 2001 - November 2005 (4 years 9 months)

Tested deployment best practices for JVMs, WebSphere and Oracle by performance testing. Tuning of J2EE and.NET applications. Proof of concept and product bake-off testing.

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• Database auditing. Implemented the Proof of Concept for database auditing for Entegra (Sql Server auditing tool without triggers).

• Juniper Firewall. Collaborated with team to identify concurrent firewall issues in .NET based time sheets submission failures..

• Social Security: Trained new hire in the use of Webload for load testing that accelerated the introduction of the “alternate customer identifier” used in place of the Social Security Number

• New Development. Compared Struts (MVC) implementations by providing response time & server resource statistics for load simulation.

• Wireless Protocol. Determined the overhead of the Wireless Access Protocol by simulating concurrent peak volume usage.

• Terminal Servers. Quantified the overhead of Citrix based terminal servers for deployment considerations.

Fidelity Vantage, Boston

Principal Systems Integration Test Engineer

March 1996 - March 2000 (4 years 1 month)

Systems Integrated QA testing, both manual and automated: Functional, Stress, Failover, Fault-Insertion and Regression.

• Qualified software for Production installations by adding to the TETware test harness for Solaris and AIX apps in distributed testing using KShell, Gawk

& Sql.

• Modifying TCP settings on Solaris and AIX for better performance

• Developed Silktest scripts for validating CUSIPs

• Determined code coverage for Microsoft COM product using Rational’s Purify

• Tested JVMs with different variables for the optimal

• Tested Oracle with different drivers for the optimal

• Worked with Clearcase developers for testing of deployment code. Digital Equipment Corporation

Senior Software Engineer

1981 - 1987 (6 years)

1. Tested the MuxServer (Aussie import, productized for US) 2. Wrote CI to BI diagnostics in Macro 32 for the CI to BI cluster 3. Distributed Systems Maintainability Engineer on Ethernet products (adapter, controller, DECnet counters, Diagnostics)

Education

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The George Washington University

MS, Systems Analysis (Operations Research was a minor) · (1977 - 1978) The George Washington University

Engineer, Communications · (1978 - 1980)

Wake Technical Community College

SAS for reporting and visualization · (2015 - 2016) Rivier College

MBA, Business, Management, Marketing, and Related Support Services · (1987 - 1989)

University of Ceylon, Katubedde Campus

BSc, Electronics and Telecommunications · (1970 - 1975) Page 7 of 7

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