Henrik Rexed
Performance Chef
Performance Kitchen
Henrik Rexed is no stranger to the PerfBytes world after numerous appearances on the podcast and live events. He is currently working as a Cloud Native Advocate at Dynatrace, the leading Observability platform. You may also remember him in his role as a Partner Solution Evangelist at Neotys, delivering webinars, building protoypes that enhanced the capability of the industry-leading NeoLoad performance tool. Henrik has more than 15 years, delivering performance and development projects in all contexts including extremely large cloud testing on the most demanding business areas such as trading applications, video on demand, sports websites, etc. Henrik Rexed is also one of the original founders of the Neotys Performance Advisory Council.

Leandro Melendez
(a.k.a. Señor Performo!)
PerfBytes Español
Leandro Melendez is the producer and host of an Espanol (note: that means Spanish) language version of PerfBytes. Leandro has more than 20 years of experience on the IT business from Developer, DBA, Project Manager and others. The last 10 years he has been working on the QA area, specifically on the Performance and Load testing area using tools as WinRunner, LoadRunner, JMeter, HPDiagnostics, NeoLoad, AppDyn, Dynatrace and many others. Has served multiple S&P 500 customers all over the USA, Mexico, Canada, Brazil and Austria. He is an author of an internationally popular performance testing blog called Señor Performo (www.srperf.com) where he curates a diverse set of learning material for performance testers and engineers.

James Pulley
News of The Damned
As one of the original and lasting LoadRunner experts, James Pulley's focus for the past decade has been assisting clients in finding answers to complex questions related to load, performance, response time and scalability. James began his career working for Microsoft in the support arm of Microsoft's Operating Systems and Database solutions as an an electronic support pioneer for Microsoft on Compuserve for Microsoft Windows. After Microsoft James worked for Banyan systems, a pioneer in the integrated directory services model for PC networks. In the last 18 years, James has been working independently as an executive, consultant, advisor and evangelist for various companies big and small.

Mark Tomlinson
Performance Sherpa
For the last 29 years Mark has been blowing up computer systems for the forces of good. He has significant experience with real-world scenario testing of large and complex systems and is regarded as a leading expert in software testing automation with an emphasis on performance. After decades working with "big tech giants" Mark still prefers tirelessly working at all hours of the night as a testing practitioner and consultant using the leading products for performance testing, profiling and measurement. Masquerading as his alias "The Performance Sherpa" he helps with mentoring and teaching customers adopt modern performance testing and engineering strategies, practices and behaviors for better performing technology systems.