Brandon O’Brien

Senior Performance Engineer

Contact

**** ******* **** **

Atlanta, GA 30316

404-***-****

ad30mc@r.postjobfree.com

Profile

A very disciplined individual whose remarkable experience working with stakeholders and business owners has honed his talents in ensuring that scheduling, testing and reporting are accurate and on point; was able to develop management delivery schedules which included system management and preparation performance test executions; has rendered assistance, reporting, troubleshooting and operational support; has assumed responsibility in developing performance test strategies, performance testing methodologies, tools infrastructure, processes and efficient execution of the projects within a set of quality standards measurement metrics.

Key Skills

LoadRunner

Jmeter

SQL

Sharepoint Development

Javascript

PHP

Safe Agile

C#

HP Loadrunner /Vugen Scripting

Devtest Scripting

Data Mining

UNIX

Cloud Computing

HTML Development

CI/CD Methodologies

Experience

June 2021- February 2024

Lead Performance Engineer • General Motors • Roswell, Georgia

As a Performance Engineering lead, my responsibilities were to deliver lead a small team for the purpose of improving customer facing applications. I worked directly with customers from group managers to the CIO level assisting them with improving their IT strategies. I mainly operated in Ecommerce and CRM application spaces.

Working as an individual contributor, responsible for defect detection, code optimization and performance testing.

Lead CRM domain which involved customer/dealer transactions and record storage.

Created and implemented a comprehensive report for the business and shareholders.

Troubleshoot and perform application tuning.

Tested Azure cloud applications.

Executed test using the LRE suite.

SAFE Agile certification completed.

Executed Tests that involved APIs and HTML requirements

Analysis of response time and scalability requirements

Creation of work-load characterization

Planning and execution of performance tests prior to production release

Development of test scenarios, test data, scripts, and exit criteria

Analysis of test results to expose potential performance issues

Definition of performance monitoring and alerting requirements

Set-up and customization of application performance monitoring tools

Proactive monitoring of enterprise applications in production

Activation of alerts when key performance thresholds have been exceeded

Custom developed monitoring solutions to fill gaps in industry tool-sets

Conducted extensive load simulations of high-volume user traffic utilizing HTTPS APIs in JMeter, employing agile scalability to swiftly scale tests and obtain precise measurements of individual API load times.

Conducted extensive load simulations of high-volume user traffic utilizing HTTPS APIs in JMeter, employing agile scalability to swiftly scale tests.

Obtain precise measurements of individual API load times using jmeter.

October 2018 - June 2021

Performance Engineer II • Incomm • Alpharetta, Georgia

I executed scripts for gift card applications for multiple fortune 500 companies. I ensure SLA requirements are met for our

Customers while using multiple cloud technologies.

Monitored the CPU, memory, and network utilizations on the UNIX server using Site Scope

monitors.

Involved in walkthroughs and meetings with Performance team to discuss related

issues

Performed the testing in step-wise manner using Performance Center.

Used Clear case for Version Control, each version of the application is stored in Clear case and necessary modifications, updates, analysis is done.

Extensively used correlation, parameterization techniques, goal-oriented planning & manual scenarios while creating multiple Vuser's in the test scripts for testing the System.

Included rendezvous points in Vuser scripts generated by Vuser Generator

Executed scripts using Devtest

Monitored transactions and debugged issues using Dynatrace

Mentored test analysts on testing processes, methodologies, and application knowledge

Lead coordination and execution of release performance testing

Determined and met time estimates and schedules for performance testing efforts

Created performance test plans and approach documents for various releases across multiple projects

Developed, updated and maintained quality performance testing standards and procedures

Created test models for release performance testing which included test plan documents, test approach documents and test cases and expected results

Assisted in the planning, creation and control of the test environments for both UNIX and Windows platforms

Communicated effectively with customers and software vendors as appropriate

Identified, gathered and created test data

Defined and utilized entry and exit criteria as it related to performance expectations

Participated in lessons learned as appropriate

June 2014 - October 2018

Performance Tester • General Motors • Roswell, Georgia

I design and execute test scripts for web applications that are used in-house and for General Motors customers. I ensure our

applications can hold the desired amount of users requested to us by our developers and business users.

Speak with business owners and project managers to understand the scope of the project

Run virtual users using HP Loadrunner

Design and execute test scripts

Advise corrections to system if bottlenecks, data leaks or system failures occur

Write scripts for web based applications

Created tools that helped increase the efficiency of my team. (pacing calculator & new hire website portal)

Invented a managerial project projection tool using Sitescope

Met with client groups to determine performance requirements, goals and test strategies based on system requirements and architecture

Wrote quality test plans and communicated information to the project team

Implemented performance tests strategies using Mercury Interactive's LoadRunner

Performed automated load and stress tests to identify and isolate system performance bottlenecks and track performance metrics, such as CPU, Disk and Memory utilization

Reviewed computer logs and reports to identify program processing errors and possible improvements

Used performance metrics and average transaction timings to determine system scalability and establish benchmarks to compare against future releases

Prepared reports for end users, which contain graphs and charts that depict system improvements versus system degradation issues

Logged, tracked and retested software defects that are inconsistent with user requirements

Assisted clients during User Acceptance Testing

Education

May 2014

Clark Atlanta University

Computer Information Science

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