Summary
Overview
Work History
Education
Skills
Websites
ADDITIONAL RELEVANT EXPERIENCE
Timeline
Generic

Marianna Fields

North Billerica,MA

Summary

Experienced software professional with a dynamic skill set in information technology, specializing in performance testing, backend, and UI automation. Proficient in working on Unix systems, including installing, configuring, managing, and maintaining continuous integration (CI) systems. Demonstrated expertise in troubleshooting and analyzing company and customer-related product issues, resulting in improved quality and operational efficiency across various industries.

Performance testing professional with strong analytical and problem-solving skills. Adept at ensuring system reliability and optimizing performance through thorough testing processes. Known for effective collaboration within teams and adaptability to changing project needs. Skilled in using test automation tools, scripting languages, and performance monitoring techniques. Recognized for delivering impactful results under tight deadlines.

Overview

18
18
years of professional experience

Work History

Senior Performance Test Engineer / Capacity Planner / QE Automation Engineer

ASRC FEDERAL
01.2021 - Current
  • Led the performance, load testing efforts of the Clinical Health Data Repository (CHDR) application. Built a performance testing framework, including tool installation, environment configuration, test script creation, to run workflow related scenarios on a Unix AWS GovCloud environment. Increased test automation regression efficiency for USDA Metis product.
  • Built a robust suite for regression testing the USDA Consumer Desktop application, significantly increasing test coverage. Used gauge framework with selenium, and java for test scripts. Monitored test runs results using Jenkins and Kibana, maintained test suites for efficient test runs and updates, used repository of bitbucket with git for code storage.
  • Load and performance tested the USDA Consumer Desktop application using LoadRunner VuGen/Enterprise, collected, analyzed metrics using Kibana and AppDynamics.
  • Load and performance tested the CHDR application, using jMeter, including design and implementation, statistics collection, test run analysis and result reporting in the FT.mil AWS cloud environment, on TCP level implementation, using mllp plugin for HL7 message types.
  • Built out a performance testing tool system in the FT.mil environment including the installation and configuration of jMeter, telegraf, influxDB and Grafana. Created a monitoring infrastructure on this environment.
  • Installed, built, configured, administered a production version Grafana monitoring tool. Created dashboards, charts, alerts to help with resource and application analysis and provided help with usage for team members.
  • Scripted jMeter workflow scenarios with TCP level message posting to the Mirth Nextgen server.
  • Scripted API calls, including AWS CLI commands to collect metrics from the Mirth Nextgen server for Queue statistics and to store this information in CloudWatch.
  • Organized and coordinated documentation of process, design, test run specifics in Jira and Confluence.
  • Performed capacity planning tasks based on metrics collected from Grafana and AppDynamics.
  • Managed capacity planning analytics environment in AWS.
  • Participated in capacity planning tasks for the Data Exchange Service (DES) product.
  • Conducted AWS Cloud computing tasks, including spinning up EC2 VMs, configuring CloudWatch for DEV, creating CLI scripts to populate CloudWatch with metrics, configuring Simple Notification Service (SNS) for alerting.

Senior Performance Test Engineer

PROFITECT / ZEBRA
01.2019 - 01.2021
  • Performance tested ZPA, prescriptive analytics application of Profitec/Zebra. Point person to create performance testing framework, including tool installation, environment configuration, test script creation, test runs of UI and API test scenarios on a Windows/Unix Cloud environment.
  • Led performance testing, using jMeter, BlazeMeter and Telerik Test Studio, including design and implementation, statistics collection, profiling, test run analysis and result reporting in several GCP cloud environments for API calls, web transactions and back-end service calls.
  • Coordinated efforts to achieve a higher user concurrency of the product by troubleshooting and finding bottlenecks of the application.
  • Created GCP Stackdriver graphs based on resource utilization metrics and log-based entries to help with monitoring test runs, using tracing, used log viewer and error reporting tools to identify potential issues and create alerts.
  • Installed, configured, used other performance test tools such as jMeter, RedGate performance profiler, DPA to help with troubleshooting.
  • Organized and coordinated findings in Jira systems.
  • Assumed devOps responsibilities including deployment to development and customer test environments.

Senior QA / Performance Engineer

N-OF-ONE / QIAGEN
01.2014 - 01.2019
  • Oversaw automation, functional, and regression testing of MarkerMine application used by company's scientists to conduct curation of biomarkers, disease, and drug markers. Point person manage CI environment for QE team, including java, tomcat, ant and Jenkins installation and configuration, building, running, and maintaining multiphase job test suites.
  • Led performance testing, including installation, configuration of jMeter, design and implementation of Web Service performance test cases running from Jenkins using jMeter, test run analysis and result reporting, ensuring application efficiency.
  • Created selenium UI test cases using Java with testNG framework that significantly increased UI testing coverage.
  • Added back-end test cases to the automation test suites using core Java, improving regression testing coverage.
  • Installed and configured Jenkins, providing CI system for the quality team.
  • Maintained back-end automation regression test suite runs, troubleshooting and correcting issues to ensure tests are running smoothly.
  • Formulated harness for backend automation test runs using shell scripting, rebuilding database overnight, to pull, build and deploy latest code.

Senior QE Engineer

CONSTANT CONTACT
01.2013 - 01.2014
  • Assumed responsibility of functional and performance testing Constant Contact’s Core Business Systems (CBS) internal and external applications.
  • Designed and executed manual and selenium UI automation tests, providing overall coverage.
  • Built and deployed SOASTA performance test suites, focusing on performance improvements of CBS’s Consumer Account web page.

Senior QE / Performance Engineer

EPSILON
01.2011 - 01.2013
  • Served as part of direct marketing product team, overseeing quality and performance-related activities working directly with development and project stakeholders to ensure development and release highest quality software product. Collaborated with cross-functional and cross-organization teams on quality initiatives and techniques that promote best software testing practices and automation tools.
  • Wrote REST API web-services automation test cases for QE functional testing using java, running within TestNG framework.

Senior QE / Performance Engineer

EPSILON
01.2008 - 01.2011
  • Created test plans for variety of performance tests using jMeter and SoapUI (performance, load, capacity, integration, and longevity test runs), introducing initial set of performance testing suites for new direct marketing product.
  • Designed, built, implemented harness using shell scripting to publish messages for Epsilon’s digital messaging infrastructure, collecting system statistics of remote systems.
  • Developed Soap and Rest API performance test scenarios using SoapUI and LoadUI tools for data messaging back-end testing, assessing TIBCO bus performance.
  • Configured cacti, created gnuplot and TIBCO Spotfire reports for a variety of performance test runs, providing analyzed data of test run results for the management team.

Senior QA and Performance Engineer

CL VERIFY
01.2008 - 01.2011
  • Operated as sole member of development team. Tested identity verification and payday loan history reporting product.
  • Built, implemented, and maintained SharePoint issue tracking system, ensuring defects are handled in organized fashion and accessible for entire team and management.
  • Engineered, executed, and managed QA process and deployment flow, improving product quality and performance.
  • Created, implemented test automation, functional, and performance testing by using jMeter, providing overall coverage of testing areas and delivering quality product to clients.
  • Configured and maintained QE test environments, supplying stable, appropriate environment for testing purposes.

Education

Master of Science (MS) - Information Systems

Northeastern University
Boston, MA

Bachelor of Science (BS) - Education

University of Hungary

MIS Computer Programming Certificate Program - undefined

Northeastern University
Burlington, MA

Internet / Intranet Core Technologies Credit Course and Telegra Faxtrace Course - undefined

UMASS Lowell
Lowell, MA

Introduction to SQL and PL / SQL - undefined

Technical Certificate

Oracle University
InHouse

In-house training on BEA Weblogic, Iplanet Web Server, and Jboss - undefined

Sun Solaris / True64 Unix system administration - undefined

Skills

  • Platforms / Servers: MAC, UNIX (Aix, Solaris, ubuntu), MS Windows, Alpha VMS, MS-DOS, Linux (Red Hat, SUSE)
  • Languages: Java, UNIX shell scripting, Python, HTML, XML / XSL, Oracle SQL, LoadRunner Scripting, RIA scripting, jMeter scripting
  • Databases: MySQL, Oracle DB, Cassandra, VMS RDB, PostGres DB InfluxDB
  • Tools, Technologies & Frameworks: Selenium WebDriver, Selenium GRID, TestNG, JUnit, Rest API, Atlassian, JIRA, Eclipse, Visual Studio Code, Zephyr for Jira, jMeter, Mercury Interactive (WinRunner, LoadRunner), New Relic, AppDynamics, Grafana, SoapUI, RIA Test Script, Tibco enterprise messaging infrastructure, Quest Toad, Oracle OEM and GRID control, F5 networking, VPN, Bitbucket, git

ADDITIONAL RELEVANT EXPERIENCE

  • SOUNDBITE COMMUNICATIONS, INC., Bedford, MA, Senior SQA Engineer
  • LIGHTBRIDGE, INC., Burlington, MA, Performance Engineer, Quality Assurance Engineer Technical Support Engineer
  • UNIFI COMMUNICATIONS, Lowell, MA, Technical Support Engineer, Delivery Analyst, Delivery Analyst

Timeline

Senior Performance Test Engineer / Capacity Planner / QE Automation Engineer

ASRC FEDERAL
01.2021 - Current

Senior Performance Test Engineer

PROFITECT / ZEBRA
01.2019 - 01.2021

Senior QA / Performance Engineer

N-OF-ONE / QIAGEN
01.2014 - 01.2019

Senior QE Engineer

CONSTANT CONTACT
01.2013 - 01.2014

Senior QE / Performance Engineer

EPSILON
01.2011 - 01.2013

Senior QE / Performance Engineer

EPSILON
01.2008 - 01.2011

Senior QA and Performance Engineer

CL VERIFY
01.2008 - 01.2011

Bachelor of Science (BS) - Education

University of Hungary

MIS Computer Programming Certificate Program - undefined

Northeastern University

Internet / Intranet Core Technologies Credit Course and Telegra Faxtrace Course - undefined

UMASS Lowell

Introduction to SQL and PL / SQL - undefined

In-house training on BEA Weblogic, Iplanet Web Server, and Jboss - undefined

Sun Solaris / True64 Unix system administration - undefined

Master of Science (MS) - Information Systems

Northeastern University

Technical Certificate

Oracle University

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Marianna Fields