Hannes Güdelhöfer
Co-Founder & Senior Software Consultant at Opencreek Technology
Frankfurt Rhine-Main Metropolitan Area Germany
Summary
👤
Senior🎓
Top SchoolHannes Güdelhöfer is a Co-Founder and Senior Software Consultant with 12 years of experience building product-led engineering teams and shipping full-stack web applications from MVP to scale. Based in the Frankfurt Rhine-Main area, he led engineering at market-leading startups like homefully and Acomodeo, driving architecture, CI/CD, Kubernetes, and high-performance customer-facing apps built with TypeScript, React and Next.js. He co-founded Opencreek in 2019 and has a track record of turning complex domain needs into auditable, revenue-generating digital products while mentoring and scaling remote teams. Hannes pairs hands-on development with pragmatic leadership, improving sales and support efficiency through measurable product and process changes. He also contributes to open-source testing tooling—enhancing Kotlin’s Kotest suite with generators and date matchers—demonstrating attention to quality and automation beyond his core stack. Trained in computer science at TU Darmstadt, he blends entrepreneurial grit with deep technical craftsmanship.
12 years of coding experience
5 years of employment as a software developer
Technischen Universität Darmstadt
Github Skills (10)
kotlin10
testing10
assertion10
test-automation10
matcher10
property-testing10
mstest9
ui-testing9
teste9
testing-library9
Programming languages (15)
Github contributions (5)
kotest/kotest
Jul 2016 - Jul 2019
Powerful, elegant and flexible test framework for Kotlin with assertions, property testing and data driven tests.
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:6 commits, 4 PRs, 11 comments in 3 years
Contributions summary:Hannes primarily contributed to enhancing the test suite for the Kotest framework. They added new tests for generators, including `Gen.choose` and `Gen.oneOf`, and fixed existing implementations. Furthermore, they implemented a new matcher `shouldBeToday` and also added a suite of tests for it. The contributions focused on ensuring the accuracy and reliability of the framework's property testing and date-related functionalities.
data-drivendata-driven-testingassertionsdriven-testingproperty-testing
opencreek/creekey-cli
Aug 2021 - Oct 2022
Contributions:16 releases, 2 reviews, 2 PRs in 1 year 1 month
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