Mark Geller Email and Phone Number
Information Systems professional with extensive experience in software design, development, performance and load testing, performance monitoring, mobile testing, as well as maintenance and support in Pharmaceutical, Healthcare, Insurance, Digital Publishing and Wellness industries. Experience in IT project management, team management and excellent problem solving, communication, decision-making and interpersonal skills. Proficient in both traditional Waterfall, as well as Agile software development methodology. Specialize in: Application Performance Management (APM), Performance Engineering, Performance Tuning, Capacity Planning, Predictive Performance Modeling and Analysis, Pre-Deployment Impact Analysis, Test Automation Frameworks, A/B Testing.
Bath & Body Works
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Manager, Testing Automation And PerformanceBath & Body WorksNew York, Ny, Us -
Manager Testing Automation & PerformanceBath & Body Works Oct 2024 - PresentNew York City Metropolitan Area -
Senior EngineerG2O Mar 2024 - Oct 2024United StatesLeading a team of Performance Test Engineers in Performance Engineering Manager role on the contract to Bath & Body Works. -
Manager Quality EngineeringWw (Formerly Weight Watchers) Jun 2021 - Jan 2024New York, New York, United StatesManaging projects and multiple geographically distributed Quality Engineering and Performance Engineering teams responsible for Functional Test Automation and Performance Engineering and Testing of various WW mobile and web applications supporting Member Experience and Member Acquisition functions.Utilizing various tools and frameworks such as Pytest for functional tests and Gatling for performance tests; utilizing JIRA for tracking bugs and issues, as well as managing various JIRA and Kanban boards to maximize efficiency. Proficient in A/B testing and testing on devices.Grew a team from just 3 persons to a team of 36 at its peak, which represented 12 different crews working on testing various functionalities, such as Food Tracking, Health Tracking, Global Food Data, Trends and other member facing and member acquisition functions, as well as performance testing across all of WW. -
Lead Performance Test EngineerWw (Formerly Weight Watchers) Jan 2019 - Jan 2024Greater New York City AreaEstablished Performance Engineering CoE at WW, including creation of an all-new performance engineering and testing process and best practices as per the latest performance engineering and testing industry standards.This includes all documentation and templates from the actual Performance Engineering process flow to test case preparation, test plan preparation, test monitoring setup, scripting best practices and standards, reporting and report distribution, performance trending and test engagement summary and recommendations. Hired and trained performance test personnel and lead various tools POC initiatives.Expanded performance testing practice to encompass broader set of applications and components, to support development and testing activities across all major technology initiatives.Implemented CI/CD Lifecycle for performance testing to help shift-left the performance engineering process and testing. Implemented front end/client-side performance testing.Leading a team of performance test engineers and currently responsible for performance engineering and testing across all of WW. Utilizing Gatling for generating load and New Relic and Datadog for performance monitoring. -
Lead Performance Engineering CoeJohn Wiley And Sons Apr 2013 - Dec 2018Hoboken, NjAs a Lead, with Performance Engineering CoE Team within Wiley Global Technology organization, I'm responsible for performance engineering and testing of Wiley digital content applications within Product Technology and Content Management organization. Managing Capacity Planning activities for multiple applications to enforce infrastructure cost reduction.Utilizing load generating and performance monitoring tools such as HP/Micro Focus ALM - Performance Center / LoadRunner, SiteScope, AWS Cloudwatch, Dynatrace and Network Virtualization software for Application Performance Testing, Engineering and Tuning. Using ELK for application production monitoring and using it to identify and create true-to-life production simulation test scenarios. Leading a team of offshore and onshore test engineers, and responsible for handling multiple performance engineering and testing engagements and projects each month, with between 40 and 50 completed each year. Helped establish Performance Engineering CoE at Wiley, including evaluation, POC, selection and implementation of automation and load testing tools. Led the creation of Center of Excellence process and all supporting Performance Engineering CoE documentation.Involved in Application Performance Management, Predictive Performance Analysis, Capacity Planning and testing of Wiley's latest digital media application, including its digital Journals and digital Books publishing platforms, as well as its Knowledge and Learning applications and student school courses for applications and users based in USA, UK, and Australia.Supported Wiley’s New Jersey data center move to multiple data centers in Texas and in the AWS Cloud to achieve infrastructure cost reduction. Serve as an Administrator for HP/Micro Focus ALM /Performance Center with duties including coordinating and installing updates and fixes, creating new domains and projects. Responsible for the overall health of the tool by managing the lab within Lab Management Module. -
Lead Performance Testing GroupMetlife Nov 2004 - Mar 2013Somerset, NjAs a member of Institutional Business Software Stress & Performance Engineering Team was responsible for creating performance scripts, running stress & performance tests, as well as deep diagnostics and in depth perfrormance data analysis and recommendations on performance related issues. Responsible for stress and performance testing over fifty different Web and Client/Server applications, and handling 30 to 40 complete engagements per year. Utilized load generating and performance monitoring tools such as HP/Mercury LoadRunner/Performance Center and Deep Diagnostics, on Windows and Unix platforms to model and analyze storage and system performance and resource usage data to highlight existing/pending/future system bottlenecks and make appropriate recommendations for optimal tuning. Current responsibilities also include managing a team of three other project leads in a Team Lead role. -
Senior Developer / Performance AnalystUnited Healthcare Aug 1999 - Nov 2004Basking Ridge, NjResponsibilities included web portal performance management, analysis, tuning, design and architecture. Also responsible for load and performance tests as well as predictive perfomance modeling across multiple web portals. Tools used are LoadRunner Test Center and Mercury SiteScope.Worked on design and development of several web portals. These sites are built utilizing Java, JavaScript, XML and HTML. Participated in design, development and support of my company's members website - utilizing Java, JavaScript, HTML and XML. Participated in development and support of various websites using Java, HTML, and tools such as Visual Age, Dreamweaver and ClearCase. Developed and supported numerous Java Servlet Pages and HTML files. IBM WebSphere is used as a server side application environment for building and deploying all mentioned above websites.Developed and updated various graphics using Paint Shop Pro and MS Image Composer. -
Programmer/AnalystCovance Mar 1998 - Aug 1999Princeton, NjAs a member of this Pharmaceutical CRO's Information Services team involved in development and maintenance of PowerHours System. This system is designed by using PowerBuilder as front-end and Sybase as the back-end database. Responsible for enhancements and technical support of relational database by using PowerBuilder and DBArtisan 2.56. Designed and developed a Missing Time Sheet application which allows the user to view employee's time sheets which were not submitted through the PowerHours system. Actively participated in Year 2000 compliance project. Participated in evaluation, remediation and validation of number of applications, including reprogramming of code and restructuring financial reports in Paradox and PowerBuilder. Managed a third party company's project to update a major financial system in order to achieve its Y2K compliance. The new application was developed in MS Visual FoxPro.
Frequently Asked Questions about Mark Geller
What company does Mark Geller work for?
Mark Geller works for Bath & Body Works
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Mark Geller's current role is Manager, Testing Automation and Performance.
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Mark Geller
Assistant Dean For Advancement - College Of Communication And Information At University Of TennesseeKnoxville, Tn5hotmail.com, yahoo.com, outlook.com, duq.edu, udayton.edu -
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Mark Geller
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