Alexander Günsche
Senior Solutions Architect at AWS
Aachen, Germany
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Alex is a Senior Solutions Architect at AWS with 20 years of IT experience in expert and leadership roles. He is a strong advocate of agile and DevOps practices, and he enjoys seeing serverless, cloud-native and event-driven architectures deployed at scale. He has delivered large transformation projects and successfully developed own and customers’ businesses. As an international speaker, he has held advanced technology sessions at a wide range of events.
Area of Expertise
Topics
Building APIs for Big Data Services
Data volumes are increasing at an unprecedented rate, exploding from terabytes to petabytes and sometimes exabytes of data. Traditional API approaches are laid out for transactional data and can’t handle these data volumes because they don’t scale well enough and are too expensive.
In this session, we will first look at requirements of big data applications and the boundary conditions of building a data service. Then will discuss how to build a data lake including data ingestion and ETL. And, mainly, we will see different patterns of how to build APIs for such services that can be used by internal and external consumers, including aspects such as semantics, security, cost and performance.
Embeddable Agentic SaaS with A2UI and Microfrontends
Today’s interfaces often expose agents as simple chats or side panels, while real products are organized around clear domains and responsibilities. This session explores how to use A2UI to deliver complete agentic experiences as microfrontends, each aligned to a specific product context and owned by a dedicated team. Instead of sprinkling agent calls across many components, an agentic microfrontend becomes the primary interface for a given task space, with server-side agents describing UI updates via A2UI and the microfrontend rendering them using its own trusted design system.
The talk walks through the core patterns for this approach: structuring an agentic microfrontend around a domain boundary; using A2UI as the contract between agents and UI; handling streaming updates and state transitions over time; and integrating with existing navigation, auth, and observability. Particular emphasis is placed on production concerns: how to test agent-driven flows, how to constrain and validate A2UI payloads, how to instrument interactions end-to-end, and how to keep agent behavior evolvable without breaking the surrounding product.
Attendees gain clear mental models for where agentic microfrontends make sense, practical guidance on designing the A2UI contract and lifecycle, and concrete patterns they can apply when introducing agent-driven experiences into complex applications and organizations.
Interface Contracts in Microfrontend Architectures
Microfrontends are a popular approach to building distributed web architectures, and there’s no shortage of frameworks and strategies. But these common approaches require all-in commitment to specific frameworks, which makes a smooth migration of legacy platforms very difficult. In this talk, we will take a look at a frameworkless approach based on native browser technology such as custom elements and the CustomEvent API, and we will learn how this can be used to gradually modernise a legacy web application. We will still use advanced tools for building and delivering our solutions, but we avoid any shared runtime dependencies, which allows for maximum portability of our components. In addition, we will see how we can ensure encapsulation, testability and evolvability through clearly defined interface contracts. As infrastructure, we can use containers or serverless cloud technology, deployed via CI/CD and Infrastructure as Code.
Micro-SaaS: Turning Microservices into Scalable Products
Micro-SaaS is an emerging trend in the software industry, supported by an ongoing fragmentation of the software landscape and increased readiness of enterprises to purchase software as a service. Micro-SaaS offerings are coming from two angles: First, established software vendors who have mastered scalable distributed architectures and are now turning microservices and microfrontends into standalone offerings. Second, startups or individual developers with a highly specific business model centered around a single capability. In this talk, participants will learn about architectural and engineering patterns that are needed to turn microservices, APIs and microfrontends into full-fledged commercial products: Self-service onboarding, identity/access management, consumption metering, tenant isolation, invoicing and billing. All of this with scalability and evolvability in mind which are essential for successful SaaS.
WeAreDevelopers World Congress 2024 Sessionize Event
WeAreDevelopers Live 2024 (Season 7) Sessionize Event
JCON EUROPE 2023 Sessionize Event
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