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User Committee

As the number of production OpenStack deployments increase and more ecosystem partners add support for OpenStack clouds, it becomes increasingly important that the communities building services around OpenStack guide and influence the product evolution. The OpenStack User Committee mission is to:

If you are an OpenStack user, please take the OpenStack User Survey and join the mailing list to help the User Committee better define user requirements and serve the community. If you are interested in volunteering to help with User Committee efforts, please email the mailing list.

The user committee is led by a core group five individuals, who provide oversight and guidance to a number of working groups that target specific areas for improvement.

Amy Marrich



Amy Marrich is the Open Source Community and Global Training Manager at O.A.T and previously was the OpenStack Instructor at Linux Academy, a Linux System Engineer on the Platform Engineering Cloud Operations team at Rackspace. She is an active member of the Openstack Ansible project and currently serves as the chair both the User Committee and the Diversity and Inclusion Working Group. She has been working in various positions in the IT world for over 20 years, her experience ranges from management and engineering in regards to software development, linux operations, and cloud computing. She lives in New Braunfels, TX with her spouse, three dogs, and three horses. 


Belmiro Moreira



Belmiro Moreira is an enthusiastic software engineer passionate about the challenges and complexities of architecting and deploying Cloud Infrastructures in very large-scale environments. He works at CERN and during the last four years his main role was to design, develop and build the CERN Cloud Infrastructure based on Openstack. Previously he worked in different virtualization projects to improve the large batch farm at CERN. Belmiro also holds a degree in Mathematics.


John Studarus

JHL Consulting


John leads the OpenStack San Diego official user group getting the community excited about OpenStack! He runs an OpenStack cloud for the community so user group members can try out the things they learn at the monthly meetings.


He got involved with OpenStack after being involved security cloud environments for one of his clients. He loves the flexibility of OpenStack and being able to get his hands dirty tinkering with cloud environments.

For the last twenty years, John has been providing technical risk management services evaluating complex distributed systems for potential operational and security risk. Consulting for the telecommunications, pharmaceutical, and financial services industries, he performs audits and assessments of internal systems and external vendor platforms to identify compliance and security risks. He’s a graduate of the University of California, San Diego and Carnegie Mellon University.

John provides cloud and technical risk management services with JHL Consulting. He got involved with OpenStack while rolling out cloud security products for AT&T and Leidos into public and private clouds. As part of giving back to the OpenStack community, John runs the San Diego OpenStack Meetup group providing technical workshops and speaker presentations.


Joseph Sandoval

Lithium Technologies


Currently my role is Director, Cloud Engineering at Lithium Technologies ( and have 20 years experience with designing and deploying in the datacenter. 

 I've been involved with Openstack since 2012 and operator since 2013. My current team has deployed Openstack to production to power our SaaS. From my perspective I can help the community understand the challenges of running it at scale and guide other users who are undertaking this journey. 

  I'm also an organizer of the SF CloudOps meetup in San Franciso which is focused on helping other operators use devop tools and frameworks. 


Matt Van Winkle

Salesforce, Rackspace


I serve an amazingly talented group responsible for running the Rackspace public cloud. I have been with the company in various roles for over 13 years.  My primary task is helping my teams of engineers and developers build the software that manages our constantly growing fleet of servers, enables easier day to day operations for our 24X7 Ops teams and facilitates smoother deployments by our software teams working on upstream OpenStack and other projects relative to our public cloud offering.

We have been growing our OpenStack based cloud since its launch in August, 2012.  It began in 3 regions with a few hundred hosts and is now in 6 separate geographic locations, has 10's of 1000's of hypervisors and contains well over 1 Petabyte of RAM under Nova management.  This cloud provides resources to an ever growing spectrum of users from all types industries, sectors and organizations.

Since late last year, I've had the pleasure of working with several in the community in elevating the voice and role of "Operators" within OpenStack.  I've helped with planning mini-summits, Ops meetup sessions in Atlanta and working closely with the Large Deployment team that met in Paris, Vancouver and beyond.