Elena Van Engelen - Maslova

Independent Lead Software Engineer

Bio

I help teams architect, build and lead the development of scalable Kotlin, cloud-native and AI-powered systems on AWS and Azure through consulting and training. I specialise in designing mission-critical, maintainable software and enjoy sharing practical knowledge through international technology conferences, my blog and as the published author of Kotlin Crash Course. I am a winner of the AWS 10,000 AIdeas competition for my open-source project, MockNest Serverless.

Sessions

ACD405

AI-Powered API Mocking with MockNest Serverless: An AWS 10,000 AIdeas Winner

Room: Tech Stage | Time: 16:20

MockNest Serverless started as an idea for smarter API mocking and became an AWS 10,000 AIdeas winner. This session shares the engineering journey behind the project: using generative AI to create realistic mocks, testing prompts and agent flows, designing a scalable serverless architecture on AWS, and the challenges of turning an experimental idea into an open-source developer tool through live demos and practical lessons learned.

Elena Van Engelen - Maslova

Independent Lead Software Engineer

ACD410

Beyond the Demo: Testing Production AI Applications on AWS

Room: Tech Stage | Time: 19:40

AI applications are easy to demo but much harder to trust in production. Prompt changes, model updates, tool calls, streaming responses and provider failures can all introduce unexpected behaviour. This session demonstrates a practical testing strategy for AI applications on AWS using Amazon Bedrock. Through live demos, you’ll see deterministic graph tests, and eval-driven development, giving you a layered approach to testing AI with confidence.

Elena Van Engelen - Maslova

Independent Lead Software Engineer