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Performance Test Architect Resume Example

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PERFORMANCE TEST ARCHITECT
Summary
Developed an accurate performance assessment solution in the DevOps model to evaluate real user experience in test environment. Providing web app performance assessment, capacity planning, code profiling, and framework performance validation via accurate performance testing to project teams *Managing onshore, offshore performance test teams. Create plan templates and organize test plans. Communicate perf test status, progress, ongoing risk assessments to project teams and business stakeholders effectively *Mentoring performance engineers on accurate performance assessment approach and random selection scripting for best real user simulation in performance testing *Implemented and administrating APM tool of Dynatrace for real time enterprise web app performance improvement *Developed a performance analytical service server based on R Shiny to internal DevOps teams by providing end user performance assessments, workload discovery and calibration, performance trend analysis *Defining load test environment in a scale-down version of prod system to save budget. Work closely with architecture and infrastructure teams to calibrate web system performance between test and prod for accurate performance assessment and prediction
Skills
Groovy, Java, C , C, R, SQL, UNIX shells Performance assessment tools: dynaTrace, New Relic, Splunk, LoadRunner, Soasta, Gatling, Jenkins CI, JMeter, Selenium, JProfiler, JConsole, JProbe, VisualVM, SilkPerformer, SiteScope, Introscope Databases: Oracle, My SQL, MS SQL server, DB2 Operation systems: Linux, AIX, Windows, Sun Solaris
Experience
Company NameCity, StatePerformance Test Architect07/2016 to Current
  • Improving performance maturity model for Nike Digital to ensure performance, scalability, and Reliability of web apps.
  • Work with other teams on Continuous Delivery Pipelines accurate performance testing practices.
  • Architecting and developing DataRover bridge application to consolidate performance metrics from different critical live data sources of New Relic, Splunk, ElasticSearch, and other internal web apps.
  • Providing hands-on Implementations to performance CI process.
  • Developed performance trend reports to high management teams on pages of the concerns - performance, revenue, user access, and system resources.
  • Researchng on the latest performance assessment methodology and trend.
  • Continue developing the auto accurate performance testing approach.
Company NameCity, StatePerformance Team Manager07/2015 to 06/2016
  • Developed performance assessment best practice guidance for agencies and dev teams of all Brand projects from scratch.
  • Providing guidelines to Nike Brand agencies and dev teams on performance matters.
  • Educating teams on end user performance assessments via presentations, demos, hands-on, and research papers.
  • Manage Brand performance team with onshore and offshore resources, priorities, and tasks.
  • Determine GO/No-GO for releases of Brand projects on performance.
  • Managing and enhancing web based performance analysis services server on CentOS VM for effective performance assessments.
  • Providing performance issue root cause analysis assistances to teams.
  • Developed load test scripts in LoadRunner and Gatling for quick demand projects for filling in urgent resource needs.
  • Monitoring web app performance trends in prod to calibrate the performance testing workloads for accuracy.
  • Providing performance trend and capacity planning analysis to upper management and prod support teams.
  • Continue researching the latest development in web app performance.
  • Presented accurate performance testing approach and developed service server using open source toolset at CMG 2015.
Company NameCity, StatePerformance Test Architect09/2014 to 06/2015
  • Reestablish performance best practice for front and backend web apps.
  • Laying out performance test strategy for ulta.com performance improvement in 2015-16 from architecture to code release, Drive web application performance improvement tracks.
  • Deeply analyzed peak usages of real user access, server memory/thread, end-to-end performance on systems and end users in 2014 holiday season for preparation of 2015 holiday readiness.
  • Provide root cause analysis on web app and system performance issues in prod and staging.
  • Developed web-based performance analytical services to technical and business teams across enterprise on CentOS VM.
  • The services included - User Access Pattern analysis, Workload Model Calibration, App Server/UEM Performance Tiered and Trend reports, Performance CI on Jenkins, End User Performance Evaluation via HAR, awstats log stats for peak times.
  • Administrate performance test servers and Dynatrace APM tool servers on windows and.
  • nix platforms, manage load test and APM tools, licenses, patches, updates.
  • Manage onshore and offshore performance teams.
  • Mentoring lead/sr performance engineers.
  • Implemented random-walk selection scripting for best synthetic performance test simulation in LoadRunner, Soasta, Gatling performance test tools.
  • Evaluate cost effective web app performance testing tools and services.
Company NameCity, StateSr. Performance Engineer07/2012 to 08/2014
  • Reestablished performance test best practice.
  • Lead performance engineering efforts to improve end user experience.
  • Providing dynamic architecture validation and development best practice enforcement for web application redesigns and enhancements using continuous performance testing and code profiling.
  • Researched, installed the APM tool of Dynatrace.
  • Administrating dynaTrace tool, performance testing servers, load test tools, their licenses and budgets.
  • Presenting tool usage tips, updates to projects teams.
  • Improved synthetic workload accuracy of performance tests by 80%.
  • Ability to reproduce prod subtle concurrency errors in load test environment.
  • Developed web usage pattern auto recognition programs for thoroughly analyzing real user access patterns from prod user access logs.
  • The pattern auto recognition tools have made calibrating performance workload model accuracy possible in practice.
  • Developed a set of C APIs for a random-walk selection in LoadRunner scripting.
  • Mentored performance engineers.
  • Using open source and commercial toolset to diagnose web app and system performance bottlenecks.
  • Providing end user experience improvement suggestions to dev, architect, upper management teams.
Company NameCity, StatePerformance Engineer06/2008 to 07/2012
  • Reestablished application performance standards.
  • Managed performance testing life cycle along project SDLC.
  • Performed detailed statistical and analytical calculations on work load models.
  • Innovated random-walk scripting in LoadRunner for best matching web user access patterns in load test environment.
  • Developed a set of C APIs in LoadRunner C language for reusability, maintainability, and extensibility of load test scripts.
  • Correlated performance data with server, network, and database utilization carefully to detect bottlenecks in app/db servers.
  • Provided root causes of performance issues to dev and operations teams.
  • Managed small onshore/offshore performance test teams per project needs and made sure performance test result and practices meet eFollett app performance standards.
  • Managed LoadRunner licenses and trainings for cross team performance testing needs.
  • Mentored junior performance engineers/consultants.
  • Developed and maintained functional/regression test automation scripts using Selenium on CI server.
  • Installed, configured Linux virtual machine to host Hudson CI server for static code analysis on java codebases.
Company NameCity, StateSystems Engineer III04/2000 to 05/2008
  • Brought to sears.com performance task force team due to urgent serious performance issues in prod.
  • Developed load test models from prod real user access patterns and solutions from web app memory core dump analyses.
  • Detected memory leaks in vendor and sears custom shared libs on Solaris using Rational Purify.
  • Certified vendor's shared lib components in sears.com extended web applications.
  • Improved online backend system performance by 35% from code improvement and performance testing.
  • Improved performance testing efficiency via performance testing process automation.
  • Setup and Managed web monitoring using Wily Introscope.
  • Defined Wily measure/alert metrics for in-house and public facing web apps.
  • Mentored other performance testers on performance testing script skills.
  • Administrated Silk Performer license server for cross team performance testing needs.
  • Managed tool server patches and upgrades.
  • Developed a multi-thread connection pool to meet real time requirement and HTTP message parser in VC .
  • Developed Java search component for J2EE based Sears enterprise portal framework on WebSphere server.
  • Developed middle layer controllers in C on Solaris for backend mission-critical transaction processing on BroadVision one to one platform.
  • Developed a set of custom C APIs in shared libs to support server dev team.
Company NameCity, StateSenior Consultant01/1997 to 04/2000
  • Designed and developed a second-generation distribution system comprised of over 60 integrated client/server applications in a team of more than 40 developers using IBM Virtual Age C .
  • Supported C /CICS and UNIX in middle layer development team.
  • Implemented HACMP (Highly Available Clustered Multiprocessing) process to improve reliability and efficiency of real-time mission critical transaction server applications.
  • Designed a highly reusable and performed C library using OOD and STL generic programming techniques.
  • Implemented 4 iterations of common library for 4 development teams.
  • Developed server applications that built on TCP/IP networking protocol for data communication between high-speed devices and UNIX servers.
  • Configured and supported TCP/IP terminal servers in prod.
Company NameCity, StateSybase DBA05/1995 to 01/1997
  • Developed EIS for Mitel semiconductor data warehouse.
  • Implemented real time dice-slice data analysis tool for upper management and sales teams.
  • Optimized EIS summary database and queries for high performing data retrieving.
  • Developed data warehouse maintenance app for sales and prod support teams Publications and Webinar.
  • Webinar by Benjamin Mao and Kevin Mobley - Calibrate Workload Model for Accurate Performance Testing by Benjamin Mao and Kevin Mobley.
  • https://www.cmg.org/event/calibrate-workload-model-for-accurate-performance-testing/, 3/14/2016.
  • Benjamin Mao, "Using R to Discover True Web System Performance", CMG 2015 Proceedings at http://www.cmg.org/publications/conference-proceedings/conference-proceedings2015 , 2015.
  • Benjamin Mao, "Calibrate Workload Model for Accurate Performance Testing ", http://edas.info/p17053, CMG 2014 Proceedings, 2014.
Education and Training
M.S:Systems ScienceUniversity of OttawaSystems Science
B.S:Electrical EngineeringNanjing University of TechnologyElectrical Engineering
Skills
APM, AIX, approach, architect, automation, BroadVision, budgets, C, C language, C , Calibration, capacity planning, CICS, client/server, com, data analysis, data warehouse, Databases, database, Delivery, filling, functional, http, IBM, DB2, J2EE, Java, Linux, LoadRunner, Managing, memory, Mentoring, Access, Windows, My SQL, enterprise, network, OOD, Oracle, db, peak, performance analysis, Presenting, presentations, programming, Publications, quick, real-time, real time, requirement, researching, research, sales, SDLC, servers, scripting, scripts, script, Silk Performer, simulation, Sun Solaris, Solaris, MS SQL server, SQL, strategy, TCP/IP networking, TCP/IP, test tools, transaction processing, Trend, UNIX, UNIX servers, UNIX shells, upgrades, validation, VC , VM, web applications, WebSphere
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Resume Overview

School Attended

  • University of Ottawa
  • Nanjing University of Technology

Job Titles Held:

  • Performance Test Architect
  • Performance Team Manager
  • Sr. Performance Engineer
  • Performance Engineer
  • Systems Engineer III
  • Senior Consultant
  • Sybase DBA

Degrees

  • M.S : Systems Science
    B.S : Electrical Engineering

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