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nfrankel/README.adoc
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last updated 2026.09 This profile is automatically generated.

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Nicolas Fränkel is a technologist focusing on cloud-native technologies, DevOps, CI/CD pipelines, and system observability. His focus revolves around creating technical content, delivering talks, and engaging with developer communities to promote the adoption of modern software practices. With a strong background in software, he has worked extensively with the JVM, applying his expertise across various industries. In addition to his technical work, he is the author of several books and regularly shares insights through his blog and open-source contributions.

✍️ Most recent blog posts

AI-assisted genealogy (2026-08-30)

My son recently came to me to brag about using AI to find our ancestors. While the results were correct, I didn’t learn anything new, as it stopped at my grandparents. I was never very interested in my genealogy, but I decided to see if AI would be a good tool for this. TL;DR: Yes, it is, and even more than that. In a little less than one month, I managed to gather more than 600 individuals and get back 12 generations in some branches.[…​]

Security Baked Into the JVM: sixteen Subjects on the wire (2026-08-23)

Alice calls the order service. The order service calls the ledger on her behalf. At the second hop, the ledger has to decide whose authority the debit is being made under. Most stacks answer badly. Forward Alice’s bearer token verbatim, and the ledger cannot tell her from the service that relayed it. Drop the token and the ledger sees a machine, with no record that a human started the chain. Neither option lets the ledger authorize the combination.[…​]

Solving Gradle metadata and Renovate integration (2026-08-16)

My current company has settled on using Gradle. It doesn’t make me very happy, but you need to learn to work with constraints. Plus, I must admit that the developers who actually implemented the build files did a pretty good job overall: they used Kotlin instead of Groovy, they moved code to regular plugins, etc. This week, I worked on improvements to a new project and set up Renovate.[…​]

🗣️ Upcoming talks

🎥 Latest video recording

Latest video recording
Practical introduction to OpenTelemetry tracing

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  1. opentelemetry-tracing opentelemetry-tracing Public

    Demo for end-to-end tracing via OpenTelemetry

    Kotlin 80 26

  2. morevaadin/More-Vaadin morevaadin/More-Vaadin Public

    Sample projects of articles on morevaadin.com

    Java 78 99

  3. kaadin kaadin Public

    Kotlin DSL for Vaadin

    Kotlin 43 12