Broadcom, Inc.

Boris Petkov

Boris Petkov is an accomplished Engineering Manager with over three years of experience at Broadcom, where he leads a dedicated team with the primary goal of contributing to Zowe and driving adoption. Boris is committed to mentoring new community members and guiding them toward upstream contributions as Open Mainframe Ambassador. He is interested in translation opportunities in addition to his mentoring work. He is enthusiastic about teaching Zowe users in getting the most out of Zowe.

Computer Science Graduate

Caitlin Mooney

Caitlin Mooney is a recent Computer Science Graduate from the New Jersey Institute of Technology. She is passionate about using technology for social good and is an enthusiastic volunteer for various causes. Her work experience includes infrastructure problem solving at UPS, STEM and Mainframe research at BCC, and business operations at Colliers International and Pullman Services.

Caitlin’s primary career interests lie in law and privacy and she is eager to learn more about cyber security, finance and mathematics.

Caitlin hopes to represent the project as an Open Mainframe Ambassador by giving press interviews and attending conferences. She also looks forward to mentoring new members of the community, improving project documentation, and writing blog posts about new technologies and products. Caitlin is confident that even though she is still a novice in the field, she can provide non-technical mentorship to those who require it.

Broadcom

Dan Kelosky

Dan Kelosky is a Software Architect helping to build Devops and Zowe solutions within Broadcom.  Dan started mainframe development in 2009 coding IBM assembler and Metal C.  He has since written code for web UIs (HTML, CSS, & Typescript), for distributed systems (C++, Java, & Node.js), and for desktop applications (Node.js, Rust).

IBM

Domenico D’Alterio

Domenico D’Alterio is a highly skilled IBM Principal Product Manager with extensive industry experience. He contributes to the Open Mainframe Project’s Zowe and IBM Z distribution for Zowe projects, as a Zowe onboarding Squad team member, Zowe Chat Squad team member and Zowe contributor. Domenico’s current responsibilities include contributing to the open source project strategy and direction as well as the market success of Zowe’s IBM Z distribution.

Prior to his current position, Domenico was the Product Manager for IBM Z AIOps offerings. He was able to hone his leadership skills while working on the strategic direction of multiple offerings. Domenico has held a variety of management positions in IBM’s development and Customer Support organizations as well as the position of Product Manager for Z Analytics products.

Domenico’s experience and expertise makes him an excellent candidate for speaking opportunities, where he can represent the Mainframe project at conferences and press interviews. He also enjoys mentoring new members of the community, assisting them in contributing upstream and creating collateral for project overview materials. Domenico also enjoys blogging.

IBM

Dong Ma

Introducing Dong Ma, a passionate Software Engineer at IBM and a dedicated contributor to the Open Mainframe Feilong project. With his expertise in cloud infrastructure and OpenStack, Dong has been actively contributing to the open source community for several years.

Dong is currently employed by IBM Cloud Infrastructure Center, where he specializes in on-premises cloud deployments on the IBM Z and IBM LinuxONE platforms. He has made significant contributions to the Jenkins, OpenStackCI, and QA areas of OpenStack since the Liberty release, with a keen eye for detail and a focus on quality assurance.

Dong’s enthusiasm for open source and technology has led him to speak at a number of conferences, including the OpenStack Summit, LCA2017, LinuxCon Japan, FOSSCON, and others. His extensive knowledge and experience have earned him the respect of the community.

Dong is an Open Mainframe Ambassador who is dedicated to fostering community growth. He intends to represent the project at conferences, mentor new community members in contributing upstream, create and review project overview material, translate key project documents into other languages, and write blogs and articles describing new Feilong technologies and products.

Dong Ma is a dedicated and accomplished professional who personifies the open source community’s spirit. His contributions to the Feilong project, as well as his passion for technology, have earned him a position of respect and admiration in the industry.

Developer Advocate - IBM

Elizabeth K. Joseph

Elizabeth K. Joseph is a Linux systems administrator turned developer advocate at IBM for IBM Z where she works with the community to explore Linux workloads on mainframes. She has previously worked on distributed systems, including OpenStack and Apache Mesos, and has written books on Ubuntu and OpenStack. She is a regular speaker and keynoter at open source conferences around the world.

Broadcom, Inc.

Fernando Rijo Cedeno

Fernando Rijo Cedeno works at Broadcom, Inc. as a talented and experienced Software Engineer. He is a TSC member and mentor for the Zowe CLI Squad, as well as an ex-leader of the Zowe Explorer Squad. Fernando is a Zowe contributor who works on projects involving low level z/OS tools, middleware, web and mobile applications. He has extensive experience working with programing languages and frameworks such as REXX/OML, TS, Node.js, Flutter, Angular, Ionic, CSS/SCSS, HTML, C/C++, Python, Groovy, Java, Kotlin, and others.

Fernando is eager to pursue opportunities such as speaking engagements, mentoring, translation, blogging and collaboration with other open source communities.

Student - Singapore Management University

Hartanto Ario Widjaya

Hartanto is a computer science student from Singapore Management University. He is currently a committer for the COBOL Programming Course after participating as a mentee during the Open Mainframe Project 2021 Summer Mentorship. He aimed to improve the content of the course with various addition and assists new learners to incorporate COBOL as a part of their tech toolkit.

Zowe TSC

Jakub Balhar

Jakub Balhar is an experienced technology enthusiast based in Europe. He is passionate about open source and security. He currently devotes a lot of time to the Zowe project , where he is the API Mediation Layer squad lead and chair of the Zowe TSC.

Over the course of his career, Jakub has been involved in a variety of companies and projects within the IT industry. Notably, he has worked on Earth Observation projects with NASA and the European Space Agency. Additionally he co-authored a book on accessibility for people for Dyslexia , titled “Dyslexia and Accessibility in the Modern Era: Emerging Research and Opportunities.”

Jakub is dedicated to pursuing opportunities as an Open Mainframe Ambassador, including speaking engagements, press interviews, mentoring new community members and writing about new technologies and products.

Western Southern

Jerry Edgington

Jerry Edgington is a Senior Technical Analyst at Western Southern and a lead of OMP’s Polycephaly project. Jerry has 35+ years of zSeries system programming experience, including z/OS, z/VM, and Linux on Z.

Dynatrace

Jessielaine Punongbayan

Jessielaine Punongbayan is a Senior Support Specialist at Dynatrace LLC and the former Lead for Zowe Explorer Squad. Jessielaine is a modern mainframe engineer who has experience in both mainframe and distributed systems. She is passionate about finding new solutions to modernize the mainframe and sharing it with the community through her blogs and video tutorials.

IBM

Joe Winchester

Joe is a senior technical staff member at IBM, where he has been involved with open source projects for many years including the Java language specification, the Eclipse foundation and its tooling, and more recently Zowe where he has been involved with the project since its inception. He presents regularly on Zowe at conferences, both in-person and virtual ranging from large events like Share, Z Technical University through to customer 1:1s and more intimate smaller user groups. UK based and happy to join calls in any time zone and loves nothing more than to switch out of point, start doing ad-hoc demos and helping to get discussions going with mainframers to help grow the adoption of open source technology to solve real world problems.

Senior Software Developer

Lionel Dyck

Lionel is a Senior Software Developer and a CBTTAPE contributor. He had been using z/OS for many years and had been involved in the open source projects since the early 80’s.

Lionel is a happy family man, having been married to his lovely bride for nearly 50 years and is a proud parent of two great children who have blessed him with two wonderful grandchildren.

Although Lionel currently resides in Texas, he spent the first five decades of his life in California. Lionel’s passion for z/OS and his extensive experience has driven him to develop innovative tools that simplify its use. Typically, Lionel uses ISPF and REXX to create these tools. Additionally, he has authored several dozen articles and blogs detailing the use of open source tools for the mainframe.

Lionel’s passion for writing extends beyond technical writing. He has a keen eye for detail and has been known to proofread novels for both sci-fi and mystery authors.

As an Open Mainframe Ambassador, Lionel is eager to pursue conference speaking opportunities as well as writing/blogging opportunities to promote new technologies and products in the field.

BMC Software

Marcus Davage

Meet Marcus Davage, a BMC Software lead product developer and active supporter of IBM Z and LinuxONE. Marcus is a true veteran and expert in the field of mainframes, with over 30 years of experience. He has worked as a programmer, systems programmer, consultant, database administrator and other roles, giving him a broad understanding of mainframe technology.

In his spare time, he volunteers as a STEM Ambassador , leading Code Clubs in Welsh speaking primary schools and introducing children to the fascinating world of technology.

Marcus is an active member of several user groups and committees, including the UK Db2 User Group and the GSE Conference Planning Committee, in addition to his advocacy work. He is an IBM Champion as well as an IBM Z and LinuxONE Influencer, and he blogs and podcasts on a regular basis to share his industry insights and knowledge.

Marcus is dedicated to advancing the project and its objectives in his capacity as an Open Mainframe Ambassador. He is most interested in speaking opportunities where he can represent the project at conferences and events, as well as collateral creation where he can review and contribute to project overview material. He also enjoys blogging and writing about new technologies and products, describing them with his mainframe expertise and experience.

Broadcom

Matt Hogstrom

A long time mainframer, Matt has been a customer as well as a creator of mainframe software working for IBM and Broadcom. Matt is one of the original committers to the Zowe project and helped the formation of Zowe at the Open Mainframe Project.

Broadcom

Michael Bauer

Michael Bauer is a Product Owner at Broadcom, Zowe Command Line Interface Squad lead, and a TSC member of the COBOL Programming Course and Zowe. A frequent speaker and blogger on Zowe, the first open source project for z/OS, Michael runs interactive workshops with customers interested in incorporating mainframe in their enterprise DevOps initiatives. Beyond the Zowe CLI, Michael has been involved with the Zowe Explorer VS Code Extension, the emerging suite of Zowe SDKs, as well as the Open Mainframe Project’s COBOL Programming Course.

Broadcom, Inc.

Michael DuBois

Michael DuBois, Senior Manager for Product Management in Broadcom’s Open Mainframe Technologies, is a seasoned expert with over 35 years of experience in Mainframe application development and programmer productivity solutions. He currently leads Broadcom’s Product Management team for Open Mainframe Technologies which includes CA Brightside and Broadcom’s open source activities, specifically Zowe. He is also an active member of the Zowe community as a member of the Zowe Advisory Council and the Onboarding Squad.

As an Open Mainframe Ambassador, Michael is dedicated to supporting the Zowe project by participating in conference speaking opportunities and assisting new community members in contributing upstream. He is also interested in reviewing and contributing to project overview materials as well as writing blogs about new technologies and products.

Beta Systems Software

Richelle Anne Craw

Richelle is a mainframer, COBOL developer, and Zowe committer to the Zowe Explorer Squad. She has over 10 years of mainframe experience in the various aspects of the field. In her current role, she enjoys developing new solutions for modern mainframe developers, working on integrating z/OSMF and Zowe with the internal software development process.

Broadcom

Rose Sakach

Rose is a Global Product Manager at Broadcom and participates on OMP’s Zowe Leadership Committee. Rose is  responsible for Zowe CLI, Zowe Support and solutions that integrate mainframe developers with modern tooling and enable DevOps for the Enterprise. She has lead sessions at SHARE, CA World, DevOps.com, and various worldwide Broadcom Product User Groups. She has over 30 years of experience in technology roles including application development, systems programming, operations, product administration, consulting services and product management.

Bankdata Denmark

Rune Christensen

Rune Christensen, a Lead Software Engineer at Bankdata Denmark, has extensive mainframe experience dating  back to 2006. As a member of Bankdata’s Mainframe Developer Experience team, he is in charge of providing mainframe developers with the necessary tools, support and education. Rune is concentrating his efforts in his current position on bringing a DevOps mindset to Bankdata’s mainframe development.

Aside from team projects, Rune’s expertise in COBOL and SQL performance is noteworthy. He is committed to promoting shift left to developers and persuading management of its effectiveness. Rune has also been a member and administrator of the COBOL Check TSC.

Rune has also been appointed an Open Mainframe Ambassador, a position in which he hopes to make numerous contributions to the project. These include attending conferences to represent the project, mentoring new community members to contribute upstream, reviewing and contributing to project overview material, and improving project documentation by creating getting started guides and how-tos.

Contributor - openSUSE

Sarah Julia Kriesch

Sarah Julia Kriesch is an educated Computer Science Expert for System Integration and studied Computer Science at the TH Nürnberg. She is contributing to openSUSE for 10 years. In 2020, she wrote her Bachelor’s Thesis about Kubernetes-based Open Source Projects on IBM Z at IBM. Afterward, she has received the reputation into the Release Engineering Team of openSUSE and she is responsible for s390x. She is also a Founder of the Linux Distributions Working Group at the Open Mainframe Project. Sarah is a Public Speaker, loves sharing her knowledge, and is contributing in general to Linux on Z besides her job as a DevOps Consultant at Accenture.

Vice President of Sales and Business Development and Senior Analyst - Futurum Research

Steven Dickens

Steven Dickens is Vice President of Sales and Business Development and Senior Analyst at Futurum Research. Operating at the crossroads of technology and disruption, Steven engages with the world’s largest technology brands exploring new operating models and how they drive innovation and competitive edge for the enterprise. With experience in Open Source, Mission Critical Infrastructure, Cryptocurrencies, Blockchain, and FinTech innovation, Dickens makes the connections between the C-Suite executives, end users, and tech practitioners that are required for companies to drive maximum advantage from their technology deployments. Steven is an alumnus of industry titans such as HPE and IBM and has led multi-hundred million dollar sales teams that operate on the global stage. Steven was a founding board member, former Chairperson, and now Board Advisor for the Open Mainframe Project, a Linux Foundation Project promoting Open Source on the mainframe. Steven Dickens is a Birmingham, UK native, and his speaking engagements take him around the world each year as he shares his insights on the role technology and how it can transform our lives going forward.

Software Engineer - Broadcom

Timothy Johnson

Timothy is a Software Engineer at Broadcom and an active member of the Zowe Command Line Interface Squad since 2019. He is a committer for Zowe CLI, Zowe SDKs, and Zowe Explorer. Timothy has developed desktop applications in Node.js, Python, C#, and Rust, created web UIs in HTML, CSS, and JavaScript, authored CI/CD workflows in Groovy and TypeScript, and is keen to integrate modern technologies with the mainframe.