Open Source Summit Europe 2025: Full Schedule

25-27, August 2025
Amsterdam, Netherlands
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Note: The schedule is subject to change.

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IMPORTANT NOTE: Timing of sessions and room locations are subject to change.

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11:00 CEST

Trainings on Open Source: How To Build a Comprehensive Training Program About Open Source? - Gergely Csatari, Nokia

Wednesday August 27, 2025 11:00 - 11:40 CEST

G107

Creating trainings on open source is a critical task of an OSPO. Open source is simultaneously a niche and an extensive topic with several aspects worth discussing. A training program should focus on the correct topics and should even provide different content for the different actors. In this session, Elefteria and Gergely from the Nokia OSPO will explain how the Nokia OSPO plans to renew the Nokia training program, what kind of user groups the different trainings address and how the trainings are organized. Lastly, this session is a great opportunity for the community to share their experiences when it comes to the creation of effective and really educational training programs inside their organisations and share tips, thus strengthening the collaboration between different stakeholders.Creating trainings on open source is a critical task of an OSPO. Open source is simultaneously a niche and an extensive topic with several aspects worth discussing. A training program should focus on the correct topics and should even provide different content for the different actors. In this session, Elefteria and Gergely from the Nokia OSPO will explain how the Nokia OSPO plans to renew the Nokia training program, what kind of user groups the different trainings address and how the trainings are organized. Lastly, this session is a great opportunity for the community to share their experiences when it comes to the creation of effective and really educational training programs inside their organisations and share tips, thus strengthening the collaboration between different stakeholders.

Speakers

Gergely Csatari

Senior Open Source Specialist, Nokia

Working in the telecom industry in the last two decades it was possible for Gergely to see the evolution from vendor specific hardware to virtualisation and cloud and a to cloud native. Currently Gergely is part of the OSPO team of Nokia CTO which is reponsible for open source. In... Read More →

Wednesday August 27, 2025 11:00 - 11:40 CEST
G107

OSPOCon

Audience Experience Level Beginner

11:55 CEST

OpenDevRel: Tales of Developer Relations in Open Source - Dotan Horovits, OpenSearch

Wednesday August 27, 2025 11:55 - 12:35 CEST

G107

We all know DevRel (Developer Relations): our company brings a novel approach to the industry, a new and better way of doing things, and we need someone to evangelize this concept, this approach, and then our product. But what if your company has an open source play? Clearly DevRel has a major stake in that, but how exactly does it work?

In this talk, Horovits will share his DevRel experience around OpenTelemetry, Jaeger, OpenSearch and other prominent projects. Bringing his rich experience from the vendor side, the dev community leader side, and the open source foundation side as a CNCF Ambassador (the Cloud Native Computing Foundation), Horovits will offer some best practices and guidelines running an effective DevRel program for open source.

Whether you found your own open source project, or whether there’s an established OSS project your company wishes to get involved in, this talk will give you fruit for thought.

Speakers

Dotan Horovits

Sr. Developer Advocate, OpenSearch

Horovits is an international speaker and thought leader, as well as a CNCF Ambassador, and host of the popular OpenObservability Talks podcast.

Wednesday August 27, 2025 11:55 - 12:35 CEST
G107

OSPOCon

Audience Experience Level Beginner

14:10 CEST

Open Source Unlocked: Smart Strategies for Maximising Efficiency & Impact - Avijit Biswas & Supriya Chitale, IKEA

Wednesday August 27, 2025 14:10 - 14:50 CEST

G107

In today’s fast-moving digital world, the pressure to innovate quickly and cost-effectively has never been greater. Open source holds incredible promise—not just as a technical solution, but as a strategic enabler of scalable, sustainable growth. Yet many organizations are still figuring out how to turn that promise into measurable impact.

At IKEA, we’ve reimagined how open source fits into our technology strategy. This talk will walk you through how we’ve reduced vendor lock-in, lowered costs, and improved flexibility by making smart, intentional choices about when and how to use open-source alternatives. It’s not just about cutting costs—it’s about creating value, building resilience, and staying in control of our digital future.

We’ll share real examples from our IT and AI journey, showing how open source can support both innovation and long-term sustainability—without compromising on quality or governance.

Key takeaways:

• How to align open-source adoption with strategic IT and AI goals

• Ways to drive cost-conscious product development at scale

• Lessons from reducing dependency on proprietary vendors

• Building resilient systems through proactive risk management

Speakers

Avijit Biswas

Open Source SME, IKEA IT AB

I’m Avijit Biswas—known to most as Avi. I’m a passionate open-source professional and technology strategist with over 15 years of experience in digital transformation and secure software development. At IKEA, I co-lead initiatives like open-source strategy, secure software practices... Read More →

Supriya Chitale

Open Source Program Office Manager, IKEA

Supriya Chitale is currently working at IKEA as Open Source Program Office Manager. She has 20 years experience in software industry with specialization in topics related to Open Source and InnerSource. She is a parent to a teenager and in her free time, she loves to travel and learn... Read More →

Wednesday August 27, 2025 14:10 - 14:50 CEST
G107

OSPOCon

Audience Experience Level Intermediate

15:05 CEST

Why and How We Updated Our License Policy for Use of Open Source - Nico Rikken, Alliander & Jonas van den Bogaard, Alliander N.V.

Wednesday August 27, 2025 15:05 - 15:35 CEST

G107

As open source becomes increasingly important, more organizations are recognizing its value. However, organizations like Alliander, a Dutch Grid Operator, which are not primarily software companies, face unique challenges in its adoption.

One of the first policies we created as an OSPO was the license policy for the use of open source. It quickly became the most viewed page of our OSPO guidance. As our understanding of open source in the enterprise grew, we encountered more licenses and edge cases that needed to be addressed. Consequently, our policy expanded to the point where it became unwieldy for our colleagues to use. We took the time to restructure our license policy to accommodate more situations while making it easier to understand for those new to open source licensing.

In this presentation, we will discuss how the Alliander OSPO developed a licensing policy that evolved in complexity over time. We will cover the issues we needed to address, the process of updating our policy, and the details of the updated policy itself. Our story underscores the value an OSPO can gain from close collaboration with senior developers, software asset management, and the legal department.

Speakers

Nico Rikken

Open Source Advocate, Alliander

Nico Rikken has a track record in maximizing the potential of Free and Open Source Software in the energy sector and in the Netherlands. As Open Source Ambassador at grid operator Alliander he helps make open source project participation successful and ensure control over the company... Read More →

Jonas van den Bogaard

Digital Strategy Lead & Open Source Office Lead, Alliander N.V.

Jonas van den Bogaard is a Digital Strategy Lead at Alliander, a distribution system operator (DSO) in the Netherlands. Alliander provides reliable, affordable, and accessible energy transport and distribution to a large part of the Netherlands. Open source has proved to be an enabler... Read More →

Wednesday August 27, 2025 15:05 - 15:35 CEST
G107

OSPOCon

Audience Experience Level Any

16:20 CEST

Team Topologies and the Value Paths for OSPOs & ISPOs - Clare Dillon, CURIOSS

Wednesday August 27, 2025 16:20 - 17:00 CEST

G107

In 2019 Matthew Skelton and Manuel Pais’s published Team Topologies, which became a widely influential book in the software and DevOps communities, praised for its practical framework on organizing teams for fast flow and effectiveness. The book defines four fundamental team types (including enabling and platform teams). Team Topologies' popularity drove investment in enabling and platform teams, as organizations attempted to reduce cognitive load and support stream-aligned teams through better internal tooling and collaboration structures. Open Source Program Offices (OSPOs) and InnerSource Program Offices (ISPOs) are organizational units that enable open collaboration practices. In this talk, Clare will use the Team Topologies framework as a lens to understand how these program offices fit into an organization’s structure. This talk will explore how Team Topologies can provide a foundation for crafting a clear and compelling value proposition for OSPOs and ISPOs. It helps translate the often intangible or misunderstood work of these program offices into well-defined roles, interactions, and outcomes that resonate with business, engineering, and leadership audiences.

Speakers

Clare Dillon

CURIOSS Community Lead, CURIOSS

Clare Dillon is community lead for CURIOSS, a community for university & research institution OSPOs. Clare is also a researcher with Lero, the Science Foundation Ireland Research Centre for Software and a member of Lero's OSPO team. From 2021-2023, Clare served as the inaugural ED... Read More →

Wednesday August 27, 2025 16:20 - 17:00 CEST
G107

OSPOCon

Audience Experience Level Any