CEAC (Current Members)

Common Europe would like to thank the following volunteers, and their companies, who contribute their valuable time to serving on the Common Europe Advisory Council (CEAC):


(Common Poland)


Mariusz has 20 years of experience in IT consulting and software development.

He graduated from the University of Lodz in Statistics and Econometrics. During his career he has worked as admin, developer, project lead, solution architect and IT manager for companies only having IBM i in their ecosystem.

For several years he held a technical lead position in SAP & PIM  implementations in Nordic and Baltic countries. His major expertise area is software development in RPG, SQL & .NET.

In 2016 Mariusz found TRENTON SOLUTIONS, a creative software house and has been supporting his customers in digital transformation.

His credo is “If you have faced problems with your app, let us move it onto the IBMi platform and the problem disappears”

Mariusz is passionate about integration, digitalization and automation.

(i-UG, UK)
CEAC Liaison to IBM

ROWTON IT Solutions Limited

Steve has worked in the IBM Business Partner world for over thirty years and despite IBM’s best attempts he still love them 😉
His career started as an RPG developer but for the last twenty years he has specialised in System Design, installation and management.

In 2008 he founded his own company (Rowton) and now he and his team spend their time supporting clients or designing new IT solutions using a combination of Power servers, Intel and storage with a little extra cloud magic where it’s needed.

When he’s not looking after his own clients, he helps run the UK’s largest IBM i User Group, the i-UG.  In 2019, IBM made him an IBM Champion in recognition of the work he has done to help and evangelise the IBM i platform, Happy Days 🙂

He has a love of teaching IBM i and has spent the last ten years volunteering to teach at IBM i events around the world. In more recent times he has been writing technical Articles on PowerWire.EU and creating his online webinars.  He is a firm believer that the more he teaches, the more he learns.

(Common Poland)


Leszek is software developer, architect and designer working on the IBM i platform since 2001. As Head of the IT Application Systems Section at KDPW, he develops and maintains depository, clearing and settlement systems for KDPW, which is the central infrastructure institution responsible for the management and supervision of trading in financial instruments in Poland.


(Common Belgium)


Koen Decorte is owner of CD Invest, an international IBM business partner with offices in Belgium and Spain.

CD-Invest is specialized in innovating and modernizing IBM i applications.

Koen studied philology and computer linguistics.He started on the IBM i (and its predecessors) in 1994.
His focus is mainly on integrating and using open source applications on IBM i. He donated his own POP3 client written in RPG to the open source EASY400 community.

Today CD Invest is proud of its state of the art applications and innovation projects. Koen and his team developed a web based 3D furniture configurator on IBM i for JORI, a high-end furniture manufacturer. This application, just as many others, won a BeNeLux Power Excellence Award.

Koen is an IBM Champion 2018, 2019 and 2020 and also the Common Belgium Treasurer.

Last year (2020) CD-Invest won the IT-consulting of the year award in Belgium.

(i-UG, UK)


Ash Giddings has more than 30 years of experience in the IT industry. Coming from an operational background, Ash is a technically astute Presales Engineer. He has worked for some of the largest data centers in Europe and in the US, and has advised large companies on major projects to save costs and improve efficiencies. Ash also has multi-platform experience, and his technical background has enabled him to find solutions for challenging IT problems.

Ash is a regular speaker at international conferences and industry events and, as a member of the Common Europe Advisory Council (CEAC) since 2014, dialogues with IBM to help shape the strategic long-term vision of the IBM i platform. He was named an IBM Champion in 2021 for over three decades of advocation and thought leadership on the IBM i platform.

(Common Sweden/Data3)


Mats has been working with IBM i (and it predecessors) since 1987 as a Programmer, Designer, Head of development, CIO and Architect. He has been part of a number of national and international projects throughout the years. Since 2018 he has been working for Apper and is helping customers to take care of their applications with the focus on using the latest IBM i technology to make their business processes as effective as possible. He also does presentations and runs education around the platform and its technologies.

Mats is President of  Common Sweden/Data3  and an IBM Champion for Power Systems.

(Common Denmark)


Niels has developed IBM i middleware and tools used in numerous applications worldwide. He is the architect of the IceBreak application server for IBM i. Over the years he has contributed to the IBM i community with presentations, demos, and loads of open source: ILEastic and noxDB to name a few projects. IT Transformation, modernization and tools around this process is his passion and he moves anything from 5250 into an era of microservices and containers. He is also a an IBM Champion.

(Common Germany)


Stefan has been working with IBM Power Systems and IBM i since 2001. 

The focus here is on system integration. This ranges from consulting, sizing and planning to installation and commissioning of the systems, including the training of administrators and further system management.

He is team leader of the biggest IBM i team in Germany with altogether more than 350 years of deep experience. 

Stefan is an IBM Champion and joined CEAC in April 2019 to represent the German Common User Group.

(Common Germany)


Holger has been active in the IBM AS/400 and IBM i world since 1988 when he first came into contact with a big beige box at a customers. Working in the IT branch since then as a programmer, ERP analyst and IT director, he started his own company in 2000 for services, programming and hosting. Since then, Holger has also been running a public system project for everyone to learn about IBM AS/400 and now IBM i at http://pub400.com. 

Currently his company RZKH GmbH runs more than 150 servers for customers all over the world hosting IBM i in their own fallout shelter below ground, concentrating on IBM i services and consultancy with a team of 5 people. Holger is an IBM i evangelist and is happy to show each customer the unique features of that wonderful system.

(Common Belgium)


Philippe Vanden Bussche started 40 years ago on S/38 and never quit the platform since then. His focus moved from development over IT management to IT architecture and system management. As a GDPR trained IT professional he gives much attention to security and privacy on IBM i.

(Common Netherlands)


After having started as a System/38 programmer in 1986. In 1989 the switch was made to system programming and systems management. Being passionate about systems management he founded van Helvoirt Automatisering in 1993. Rudi enjoys helping IBM i customers ever since for running their business applications. He is an early adopter of the IBM i GUI’s, System Object Access that later evolved into System i Navigator and recently Navigator for i. He has been involved in IBM i BRMS for the past 15 years, helping to improve the backup strategy of IBM i data. Rudi is member of the COMMON Europe Advisory Council, an IBM and End User Experts strategy think tank for the IBM i. On top of that IBM made him an IBM Champion in 2020. Also in 2020 van Helvoirt Automatisering was acquired by EASI in the Netherlands.


Senior Power Technical Specialist / IBM Technology, DACH


Sabine is a Consulting IT Specialist working at IBM Germany. She has worked as a Technical Specialist in the IBM i area for more than 30 years specializing in high availability (HA). She has worked on IBM PowerHA SystemMirror® for i implementations for both SAP and non-SAP environments. Among these implementations, she created concepts for the design and implemented the entire project (cluster setup and application changes) in addition to performing client education and testing. She has also specialized in new concepts that can help clients with setting up HA environments that meet the technical requirements and budget expectations, such as Capacity BackUp (CBU) editions, Power Enterprise Pool, or Shared Utility Capacity.

Since March 2022, Sabine is the IBM liaison for the Common Europe Advisory Council.





Sara Andrés is a Biomedical engineer specialized in medical image analysis through AI techniques. She completed her master’s thesis in cardiac MRI segmentation and worked on investigation projects for hospitals such as Barcelona’s Clinic hospital through the IDIBAPS platform. Starting the world of technology through artificial intelligence, currently, she works as a Power Systems Technical Specialist at IBM and on the last year has taken the position of IBM Liaison with the Common Europe Advisory Council (CEAC)