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Welcome to CIONET Belgium

Realise your ambition! Connect with your local community of digital leaders.

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Upcoming Events

 
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Belgium 25-9-25 Invitation Only Physical english

Women of CIONET - Female Leadership Circle 2

As AI shapes our future, the time is now to address and correct its inherent biases. Join leading female voices in tech as we explore how to undo past mistakes, champion neutrality, and feed AI systems with inclusive, unbiased data. This conference is a call to action for female leaders in AI and tech to ensure the next generation of intelligent systems reflects fairness, diversity, and equity. Together, let’s set things right and redefine the future of AI.

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Belgium 25-9-25 Invitation Only Physical english

Red Hat Round Table: THE POWER OF HYBRID

On 25th September, during the Red Hat Summit: Connect 2025 in Brussels, CIONET is hosting an exclusive, invitation-only round table for leading CIOs, CTOs, and digital leaders. While the Summit offers a broad programme, this CIONET session is a separate, distinct event, conducted in its own dedicated room with private catering, ensuring a focused and confidential peer-to-peer discussion. This round table will delve into why certain cloud-native techniques offer undeniable benefits, irrespective of where your applications are deployed, be it on-premise, in a hyperscale cloud, or a hybrid environment. Even outside public clouds, these modern, modular architectures consistently deliver increased agility, enhanced scalability, and quicker time-to-market. The real power behind these advantages lies in automation. When done properly, automation significantly boosts team efficiency, improves system quality, and drastically cuts risks from slow systems or downtime. However, achieving truly effective automation comes with its own set of challenges, which we'll address head-on. Key Discussion Points Include: "No-Regret" Cloud-Native Pillars: We'll try to pinpoint essential techniques every organisation should adopt, such as microservices architecture, containerisation (e.g., Docker, Kubernetes), API-first design, stateless application design, and immutable infrastructure. Why are these crucial for modern applications, no matter the deployment location? Strategic Vendor Lock-in: How to judiciously manage vendor lock-in. For new innovations and applications with a relatively short life expectancy, leveraging the latest unique features of a hyperscale cloud might be beneficial. For long-lived applications (expected to be live for decades), the focus might shift to limiting exposure by utilising generally available technologies. Automation Anywhere: How can organisations effectively implement automation strategies to unlock the full potential of cloud-native initiatives across diverse infrastructures? What are the biggest hurdles, and how are leaders overcoming them? This CIONET round table offers a unique and intimate setting for digital leaders to gain critical insights, exchange perspectives, and shape the strategic path towards application modernisation that truly offers no regrets.

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Belgium 30-9-25 Squad Only Virtual english

Technical Debt: When to Pay It and When to Walk Away ; Making smart trade-offs between progress, maintenance, and risk

Everyone has technical debt. The question is what to do with it. Refactor now? Wait for the next feature? Build on it and hope it holds? If you’re tired of debating whether to clean up or move on, this session helps you frame the debt conversation in a way that supports both speed and stability.

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Upcoming TRIBE Events

 
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September 30, 2025 Squad Session Squad Only Virtual english

Technical Debt: When to Pay It and When to Walk Away ; Making smart trade-offs between progress, maintenance, and risk

Everyone has technical debt. The question is what to do with it. Refactor now? Wait for the next feature? Build on it and hope it holds? If you’re tired of debating whether to clean up or move on, this session helps you frame the debt conversation in a way that supports both speed and stability.

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October 2, 2025 Squad Session Squad Only Virtual english

The Career Path of the Architect ;Great architecture begins with great architects

Architecture doesn’t happen in diagrams. It happens in minds, seasoned, curious, sharp minds that understand how the pieces fit. But who’s shaping these minds? Who’s growing the next generation of digital architects? If you’re responsible for complex systems, and for the people designing them, this session is for you.

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October 14, 2025 Squad Session Squad Only Virtual english

Agile Infrastructure ; How to build technical foundations that don’t slow you down

Agile delivery often collides with inflexible infrastructures. One team wants to release weekly. Another is waiting six months for a new test environment. Sounds familiar? If your infra team is tired of being the bottleneck, and your devs are tired of waiting, this session opens a path forward.

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CIONET Partner Updates

CIONET Partner Updates

Recent Cases

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Airbnb Optimizes Usage and Costs by Using Savings Plans and Actionable Cost Data on AWS

To help it achieve its goals, Airbnb looked to Amazon Web Services (AWS), its cloud provider, for data and infrastructure solutions. Using support from AWS and multiple AWS services, Airbnb developed strategies to manage capacity, optimize storage and compute capacity, and build a custom cost and usage data tool. The solutions help Airbnb reduce costs, deliver actionable business metrics, and pursue data-informed efficiency projects across its teams.

Opportunity | Architecting Cost Efficiency to Grow Sustainably

Airbnb’s journey to facilitating connection and community through travel began in 2007 when its first two hosts—and founders—welcomed three guests to their San Francisco home. Since then, the company’s hosts have welcomed over one billion total guest arrivals, with listings across more than 220 countries and regions.

From its early days as a company, Airbnb has powered its business using cloud services from AWS—a strategy that supports its rapidly expanding workloads as well as its need for agile compute and storage solutions. The company decided to invest in transforming its data and usage strategy on AWS. Because Airbnb operations involve hundreds of services and an agile technical culture, the company needed a strategic, centralized, and relatively frictionless approach to leaner purchasing.

Early in Airbnb’s journey, the company used a cost allocation visualization engine, AWS Cost Explorer, which has an easy-to-use interface that helps customers visualize, understand, and manage their AWS costs and usage over time. Later, to make use of its internal data infrastructure and extend the cost visualization capabilities of its data warehousing stack, Airbnb took advantage of data from the AWS Cost & Usage Report, which contains a comprehensive set of AWS cost and usage data and is available at an hourly, daily, or monthly level of granularity, as well as at the management or member account level.

"Using Savings Plans has been a significant improvement to Airbnb’s cloud management process. It’s helped reduce our operational workload while also driving meaningful cost savings for our business.”

Ari Siegel
Senior Finance Manager, Airbnb

 

Solution | Driving Cost Efficiency Using Insights and Pricing Solutions

Relying on its data warehouse, Airbnb uses the AWS Cost & Usage Report to run a custom pipeline that produces a dynamic view of Airbnb’s cost data and facilitates analytics. Airbnb’s pipeline ingests cost and usage files from Amazon Simple Storage Service (Amazon S3), which offers industry-leading scalability, data availability, security, and performance. To process files, Airbnb uses Amazon EMR, a cloud big data environment for processing vast amounts of data using open-source tools, making it possible for developers to run big data applications and petabyte-scale data analytics faster. Airbnb uses its pipeline to discount and amortize the data and then further customize it to support analytics and produce actionable insights and metrics.

To save on its use of Amazon Elastic Compute Cloud (Amazon EC2), which provides secure, resizable compute capacity in the cloud, Airbnb became an early adopter of Savings Plans, a flexible pricing model offering lower prices compared to Amazon EC2 On-Demand Instances in exchange for a specific usage commitment. Airbnb migrated its Amazon EC2 Reserved Instances to Savings Plans and discontinued its On-Demand Instance usage, resulting in cost savings. “Using Savings Plans has been a significant improvement to Airbnb’s cloud management process. It’s helped reduce our operational workload while also driving meaningful cost savings for our business,” says Ari Siegel, senior finance manager at Airbnb.

Airbnb also manages and saves on storage costs using Amazon S3 Intelligent-Tiering (S3 Intelligent-Tiering), a cloud storage class that delivers automatic cost savings by moving objects between four access tiers when access patterns change. By using S3 Intelligent-Tiering to manage storage locations for objects used by Airbnb’s data warehouse, Airbnb reduced storage costs by approximately 27 percent. Additionally, for replicated data stored for backup, the company uses Amazon S3 Glacier storage classes—a range of storage classes that users can choose from based on the data access, resiliency, and cost requirements of their workloads. Airbnb relies on the AWS Cost & Usage Report for hourly insights into data storage spending on Amazon S3.

Airbnb also manages costs within its logging infrastructure using Amazon OpenSearch Service, which makes it easy to perform interactive log analytics, near-real-time application monitoring, website searches, and more. To help lower costs, Airbnb employed UltraWarm storage for Amazon OpenSearch Service, which provides a cost-effective way to store large amounts of read-only data on Amazon OpenSearch Service. The solution contributed to a 60 percent reduction in Airbnb’s Amazon OpenSearch Service costs.

 

Outcome | Maturing Operations and Empowering Teams

Airbnb’s finance and technology teams employed a broad range of AWS resources to build cloud efficiency and optimize operations. To work toward data-driven purchasing, the teams also expanded their consultation and engagement using AWS. And by delivering process and visibility improvements, the company helped empower individuals and teams to adopt cost management goals.

CIONET Circles

CIONET Business Circles

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Healthcare Circle

Digital Transformation is redefining the future of health care and health delivery. All stakeholders are convinced that these innovations will create value for patients, healthcare practitioners, hospitals, and governments along the patient pathway. The benefits are starting from prevention and awareness to diagnosis, treatment, short- and long-term follow-up, and ultimately survival. But how do you make sure that your working towards an architecturally sound, secure and interoperable health IT ecosystem for your hospital and avoid implementing a hodgepodge of spot solutions? How does your IT department work together with the other stakeholders, such as the doctors and other healthcare practitioners, Life Sciences companies, Tech companies, regulators and your internal governance and administrative bodies?

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Telenet Business Leadership Circle

The Telenet Business Leadership Circle powered by CIONET, offers a platform where IT executives and thought leaders can meet to inspire each other and share best practices. We want to be a facilitator who helps you optimise the performance of your IT function and your business by embracing the endless opportunities that digital change brings.

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Les Rencontres

Découvrez la dynamique du leadership numérique aux Rencontres de CIONET, le programme francophone exclusif de CIONET pour les leaders numériques en Belgique, rendu possible grâce au soutien et à l'engagement de nos partenaires de programme : Deloitte, Denodo et Red Hat. Rejoignez trois événements inspirants par an à Liège, Namur et en Brabant Wallon, où des CIOs et des experts numériques francophones de premier plan partagent leurs perspectives et expériences sur des thèmes d'affaires et de IT actuels. Laissez-vous inspirer et apprenez des meilleurs du secteur lors de sessions captivantes conçues spécialement pour soutenir et enrichir votre rôle en tant que CIO pair. Ne manquez pas cette opportunité de faire partie d'un réseau exceptionnel d'innovateurs numériques !

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Female Leadership Circle

CIONET is committed to highlighting and celebrating female role models in IT, Tech & Digital, creating a leadership programme that empowers and elevates women within the tech industry. This initiative is dedicated to showcasing the achievements and successes of leading women, fostering an environment where female role models are recognised, and their contributions can ignite progress and inspire the next generation of women in IT. Our mission is to shine the spotlight a little brighter on female role models in IT, Tech & Digital, and to empower each other through this inner network community.

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Check out our latest news

Testimonials

Geert Goethals
Geert Goethals
CIO
Sibelga
Bahadir Samli
Bahadir Samli
CIO
ING Belgique
2-Feb-29-2024-11-35-00-9309-AM
Bart Kerkhofs
Vice President & Head of IT
Bridgestone EMIA
Untitled design (1)-Apr-01-2022-10-58-34-57-AM
Michał Paprocki
Group CIO
Euroclear
1-Feb-29-2024-11-34-59-8990-AM
Manfred Boudreaux-Dehmer
Chief Information Officer
NATO
Untitled design-Nov-22-2023-08-42-05-3178-AM
Annick Faes
Vice President IT and CIO Medical Devices EMEA
Johnson & Johnson
Piet_De_Ceuleners
Piet De Ceuleners
Global IT Director
Melexis
1658251930890
Dirk De Bevere
Large Enterprise Sales Leader
Telenet Business
Untitled design-7
Stef Schampaert
Country Managing Director BeLux
Red Hat
CIONET Belgium - Advisory Board Member - Geert Lejon
Geert Lejon
Vice President Head of Belux / Head of Comms Benelux
Cognizant
Kevin_Ledegen
Kevin Ledegen
Group IT director
SDWorx
Gunter-Van-Craen_Small
Gunter Van Craen
Chief Digital & Information Officer
Bekaert
Thomas Kessler
Thomas Kessler
Partner | CIO Programme Leader
Deloitte
Emmanuel Gob
Emmanuel Gob
CIO
DPD
pascal pauwels
Pascal Pauwels
CIO
Colruyt
Untitled design (4)-Dec-13-2023-10-53-15-5032-AM
Koen Segers
Managing Director Belgium and Luxembourg
Dell Technologies
benoit dewaele
Benoît Dewaele
Group IT Directo
Vandemoortele
Dirk Deridder-1
Dirk Deridder
CTO - Technology Services & Practices
SMALS
Thierry Driesens
Thierry Driesens
CIO
TVH
Untitled design-Sep-18-2023-11-59-29-7866-AM
Koen Vandaele
CIO
Delen Private Bank
Untitled design (4)-Jun-12-2023-01-23-11-7540-PM
Liesbet D'hoker
Managing Director
Kyndryl BeLux
steven-vermeulen
Steven Vermeulen
CIO
Digitaal Vlaanderen
Jack Hamande
Jack Hamande
Director General Digital Transformation
Federale Overheidsdienst Beleid en Ondersteuning
Tom Tomczak
Tom Tomczak
Chief Commercial Officer (CCO)
NRB
1726588748718
Cassandre Laurent
Directeur général
Agence du Numérique
an swalens
An Swalens
Head Of IT (CIO)
National Bank of Belgium
Untitled design (2)-Apr-01-2022-10-58-34-68-AM
Elke Laeremans
Chief Digital & Supply Chain Officer at Casa International
CIONET Belgium - Advisory Board Member - Koen Van Loo
Koen Van Loo
CIO
Group S.
Peter Sany
Peter Sany
Executive Advisor
Zoom
CIONET Belgium - Advisory Board Member - Steven De Haes
Steven De Haes
Dean
Antwerp Management School
Marleen Thorré
Marleen Thorré
Head of Digital EMEA
Mitsubishi Chemical Group
christel-plessers
Christel Plessers
Head of IT European Markets
Mercedes-Benz Europe
bauduin cor
Baudouin Corlùy
Chief Market Development Officer
LCL Data Centers

Team

Luc Hendrikx
Luc Hendrikx
Partner - CEO
Inès De Bien
Inès De Bien
Partner - CCO
1-Feb-08-2022-10-22-08-68-AM
Daniel Eycken
Partner - COO
Hendrik Deckers
Hendrik Deckers
Partner - Founder
Untitled design (1)-2
Jelte Scheys
Tribes Sales Director Belgium
foto Herman
Herman Roelandts
Tribe Master
Joseph Antoun
Joseph Antoun
Senior Programme Director
1-Dec-16-2021-02-15-57-02-PM
Eman De Sutter
Programme Manager
4-Feb-08-2022-10-22-09-03-AM
Shelly Deracourt
Programme Manager
Untitled design (5)-Sep-01-2022-02-47-55-60-PM
Charlotte Coen
Partner Success Manager
Untitled design (1)-Nov-22-2023-08-56-42-6802-AM
Ivana Bradvica
Programme Manager
ML B-W-1
Martine Lefevre
Financial Controller
Vlera Berishaa (1)
Vlera Berisha
Community Manager
Phaedra Vanhaeren
Phaedra Vanhaeren
Programme Manager

Contact us

Would you like to know more about CIONET Belgium, membership or partnership opportunities? Do you have feedback or any other question? Send us a message!