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MEET THE SPEAKERS
20 JUNE
At the Software Architecture Summit 2025, international experts will discuss the principles driving scalability, security, and resilience in modern software systems. From Site Reliability Engineering (SRE) and Data Mesh to Zero-Trust Architecture, learn how leading organizations are rethinking infrastructure for performance and security.
Explore the impact of Edge Computing in distributed environments, navigate the evolution from monoliths to microservices, and unlock the potential of Event-Driven Architecture for real-time applications.
Gain the insights you need to build systems that stand the test of time at the Software Architecture Summit 2025!
Veliswa Boya
Senior Developer Advocate
As a Senior Developer Advocate with over 20 years of experience in software development, cloud architecture, and developer engagement, Veliswa is passionate about driving innovation and empowering technology communities. 𝐒𝐞𝐬𝐬𝐢𝐨𝐧 𝐓𝐢𝐭𝐥𝐞: Don’t build the Vasa! 𝗦𝘆𝗻𝗼𝗽𝘀𝗶𝘀: Engineering Approach” the authors say that the story of over-specifying architecture characteristics and ultimately failing is the Vasa. The Vasa was a Swedish warship built in the 1600s that sank partly because of over-specifications. In this talk we look at how to avoid over-specifying architecture characteristics and then using the Well-Architected Framework and AI tools on AWS to design a well-architected application that meets these prioritized architecture characteristics.
Ioannis Canellos
Senior Principal Software Engineer
Ioannis has more than 19 years experience as Java developer 13 of which are as full time OpenSource developer. He is a member of the [Apache Software Foundation](http://www.apache.org), with contribution to numerous projects as a committer and PMC member. He is currently working as a Senior Principal Software Engineer at Red Hat as part of Red Hat Spring team, where he spends most of his time implementing tools and frameworks related to [Kubernetes](http://kubernetes.io), [Openshift](https://www.openshift.com), [Spring Boot](https://spring.io) and [Quarkus](https://quarkus.io). He is also the creator of [Spring Cloud Kubernetes](https://github.com/spring-cloud/spring-cloud-kubernetes), [Fabric8 Kubernetes Framework](https://github.com/fabric8io/kubernetes-client), [Dekorate](https://github.com/dekorateio/dekorate) and more. 𝐒𝐞𝐬𝐬𝐢𝐨𝐧 𝐓𝐢𝐭𝐥𝐞: Introduction to Backstage 𝗦𝘆𝗻𝗼𝗽𝘀𝗶𝘀: In the aftermath of the crusade against the monolith, organizations are grappling with a new set of challenges. As software becomes increasingly fragmented across multiple teams, the clarity around ownership, visibility, and the relationships between components begins to diminish. This fragmentation not only shows chaos but also raises significant security concerns. In response, development portals have gained popularity as a means to reestablish order and oversight. Backstage, in particular, has emerged as the leading framework for crafting such solutions. This talk will provide a deeper understanding of the specific challenges Backstage aims to solve, its operational mechanisms, and how it can serve as a critical asset for your organization.
Clemens Vasters
Principal Architect, Messaging and Real-Time Intelligence
Clemens Vasters is Lead Architect in Microsoft’s Azure Messaging team that builds and operates a fleet of hyper-scale messaging services, including Event Grid, Service Bus, Event Hubs, Stream Analytics and Microsoft Fabric Eventstreams. Clemens represents Microsoft in messaging standardisation in OASIS (AMQP, MQTT) and CNCF (CloudEvents, xRegistry) and writes too much code for being an "Architect". He looks back at nearly 30 years in professional software development and has seen the same fashion come and go a few times. 𝐒𝐞𝐬𝐬𝐢𝐨𝐧 𝐓𝐢𝐭𝐥𝐞: Azure Messaging - Standards Matter 𝗦𝘆𝗻𝗼𝗽𝘀𝗶𝘀: In this session, Microsoft's lead architect for Messaging, Clemens Vasters, will provide an overview of the Azure Messaging services (Event Hubs, Event Grid, and Service Bus) in the industry context and with a lens on interoperability. You will learn about the various standardization activities that Microsoft is involved in to help drive interoperability across different platform and cloud vendors, and how those standards surface in Microsoft's platform services. You'll be getting a little crash course in some key protocols like HTTP, AMQP, MQTT, Kafka and will learn how they overlap or complement each other. You'll also learn about higher level standards such as CNCF CloudEvents and OPC UA that provide a layer of abstraction for special use-case scenarios.
David Ostrovsky
Software Engineer
At age 9 little David found an old book called "Electronic Computational Machines" at the library and, after reading it in a single weekend, decided that this was what he wanted to do with his life. Three years later he finally got to touch a computer for the first time and discovered that it was totally worth the wait. One thing led to another and now he’s a software engineer at Meta. David is a software developer with over 25 years of industry experience, speaker, trainer, blogger and co-author of “Pro Couchbase Server”. He specializes in large-scale distributed system architecture. 𝐒𝐞𝐬𝐬𝐢𝐨𝐧 𝐓𝐢𝐭𝐥𝐞: Analytics for not-so-big data with DuckDB 𝗦𝘆𝗻𝗼𝗽𝘀𝗶𝘀: In this session we'll take DuckDB out for a test drive with live demos and discussion of interesting use-cases. We'll see how to use it to quickly run analytical queries on data from multiple data sources. We'll look at how to use DuckDB to transform and manipulate diverse datasets, such as turning a bunch of raw CSV data in S3 into a set of tables in MySQL with a single command. We'll check out its embedded capabilities, by running the database directly inside a Python application. And finally, we'll build a quick-and-dirty Data Lake by using DuckDB, without any complicated big data tools.
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