Who are we?
VMS Software's management team includes members with deep roots in OpenVMS, going back to the days of Digital Equipment Corporation, and more recent OpenVMS devotees from other industries. What the management unequivocally shares is an absolute passion for solving customer challenges.
Camiel Vanderhoeven
Chief Architect and Strategist
Camiel is responsible for determining the strategic direction of OpenVMS as well as for steering our engineering efforts in that direction while maintaining its architectural integrity. He and the Europe-based product management team work closely with R&D, Sales, other teams in the company, and external stakeholders to ensure that our efforts are in line with customer needs.
Camiel has been a key figure in the development of OpenVMS since 2015 as one of the principal architects of the port to x86. He has been passionate about OpenVMS for over twenty years and brings a wealth of experience from an entrepreneurial software engineering and OpenVMS consulting background.
Darya Zelenina
Chief Executive Officer
Darya is responsible for leading the company’s strategic direction, ensuring business continuity, and driving modernization while preserving the company’s culture of excellence. She is committed to fulfilling the company’s mission of protecting customers’ investments in OpenVMS. She works closely with the executive team, with each leader driving their respective department, to ensure alignment with VMS Software’s long-term vision and operational goals. Darya has been with VSI since 2017, teaching OpenVMS and leading R&D, Information Development, and Marketing teams.
Darya combines deep understanding of OpenVMS with an expertise in business strategy, marketing, and communication. With the ability to navigate diverse perspectives, she ensures well-informed decision making and strategic planning, and her data-driven approach and efficient time management enable her to drive the business forward while keeping teams aligned and focused on the company’s mission.
John Ross
Chief Operations Officer
John is responsible for the development and continuous improvement of processes and systems that ensure our Clients, Partners & Revenue teams operate with maximum efficiency, information and insight. He and his team have a global focus and a passion for leveraging modern tools and methods. Over the past several years, John has conceived of and led a highly successful transformation of our customer-facing and internal operations with an unwavering eye on improving both Client and Employee experience. A data and operations nerd since long before it was fashionable, John also leverages insights gained during a 30-year career in customer-facing roles.
Adam Hoff-Nielsen
Chief Account Management Officer
Adam is responsible for developing and executing the company’s account management strategy to ensure strong client relationships, high customer retention, and long-term business growth. He leads a dedicated team of account management professionals who are committed to delivering outstanding service and fostering long-term partnerships. The international account management team focuses on customer satisfaction and proactive account management helping the customers protect and realize the full value of their application investments. The team is represented by 5 different nationalities and can service the customers in 10 languages and in most time zones. Adam is a passionate clean-tech professional and brings over 20 years of international experience leading and managing large-scale technical projects. His professional background and strengths are reinforced by extensive qualifications in both business and engineering: MBA, MSc, and Beng.
Dr. Brett Cameron
Chief Application Services Officer
Brett is charged with defining and driving the strategy for the VSI OpenVMS Application Services team. Brett brings over 30 years of industry experience to the role, having worked globally with numerous OpenVMS users to both support and modernize their business-critical OpenVMS applications. Previously Brett has worked as a master architect with HP’s Cloud and Enterprise Services groups focusing primarily in areas such as distributed systems, transaction processing, integration, and legacy application modernization leveraging open-source technologies. Brett holds a doctorate in chemical physics from the University of Canterbury, New Zealand, and maintains close links with the University.
Debbee West
Chief Support Officer
Debbee is responsible for the delivery of a high quality customer support experience, orchestrating the front line and vastly experienced backline technical experts. With her truly global team consisting of both renowned industry experts and young support engineers in training, she is the pioneer for OpenVMS training and knowledge sharing in the company. Debbee worked for Digital Equipment Corportation, Compaq Computers and Hewlett Packard Enterprise for over 30 years before coming to VSI 5 years ago, bringing OpenVMS expertise (particularly in the field of networking) and people skills.
Rafael Martins
Chief System Services Officer
Rafael’s role in System Services is to deliver on VMS’s offering on external deployments managed daily (Managed Services) as well as helping customers to plan and execute their upgrades and migration to x86, either on-prem or in the cloud (Professional Services). His team is located in multiple countries, covering a range of time zones, thus providing high availability, off & on-site solutions, customized to each customer's needs.
Rafael has a background in electrical & computer engineering, bringing over 15 years of experience from very high reliability, test-focused industries such as Space and Industrial Automation, where focus on uptime is paramount.