Fabian Lange
Advisor at Dash0
Solingen, North Rhine-Westphalia, Germany
Summary
👤
Senior🎓
Top SchoolFabian Lange is an experienced software engineer and advisor with 16 years of deep technical and leadership experience across performance engineering, backend systems, and product strategy. He founded Instana (acquired by IBM) to innovate observability with knowledge-based assistance, and now advises executive teams while executing strategic technical projects. A hands-on performance expert, Fabian has contributed optimizations to high-profile open-source projects such as Vaadin, PDF.js, Netty, Byte Buddy and Joda-Time, often focused on low-level performance wins and concurrency fixes. His work shows a pattern of improving startup performance, reducing memory and synchronization overhead, and hardening runtime behavior in JVM and JavaScript code paths. Based in Solingen, Germany, he blends practical consulting experience from customers to founders with a long history of teaching and tooling for performance. Colleagues describe him as pragmatic and detail-oriented, preferring CVs and references over platform endorsements to communicate capability.
16 years of coding experience
15 years of employment as a software developer
Dipl.-Ing. (BA) Informationstechnik / BA of Science Information Technology, Dipl.-Ing. (BA) Informationstechnik / BA of Science Information Technology at Berufsakademie Stuttgart
German, English, Spanish, Portuguese
Stackoverflow
1,816reputation
303kreached
46answers
0questions
garbage-collection
top-5%
jackson
top-5%
networking
top-5%
java
top-5%
json
top-5%
Github Skills (47)
algorithm10
dependency-management10
code-optimization10
deco10
caching10
algorithms10
javascript10
vaadin10
http10
instrumentation10
decode10
networking10
java10
javas10
java-libraries10
Programming languages (20)
Github contributions (5)
raphw/byte-buddy
May 2015 - Aug 2018
Runtime code generation for the Java virtual machine.
Role in this project:
Backend Developer
Backend DeveloperContributions:9 commits, 11 PRs, 58 comments in 3 years 2 months
Contributions summary:Fabian primarily contributed to the Byte Buddy library by fixing bugs and improving the code quality. They addressed issues related to incorrect error messages, prevented potential issues during retransformation, and added convenience matchers for interface and abstract types. The user also enhanced the library by removing unused annotations and addressing a typo in the JavaDoc documentation. Their contributions focused on enhancing the core functionalities and stability of the library.
instrumentationcode-generationdynamic-proxyjava-libraryjava-agent
vaadin/framework
Jun 2013 - Mar 2015
Vaadin 6, 7, 8 is a Java framework for modern Java web applications.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:65 commits in 1 year 9 months
Contributions summary:Fabian primarily focused on optimizing and improving the performance of the Vaadin framework. Their contributions involved refactoring code to enhance efficiency, such as replacing `String.split()` with `StringTokenizer` and reducing reflows in UI components. They also addressed various bug fixes and added features, including handling larger file uploads and improving the handling of push messages. Furthermore, the user improved the performance of the connector tracker.
web-applicationsjava-webvaadin-frameworkweb-application-frameworkjava
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.