Markus Hauck
IT Consultant at TU Darmstadt
Frankfurt, Hesse, Germany
Summary
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Rockstar🎓
Top SchoolMarkus Hauck is an IT consultant based in Frankfurt with 14 years of experience building maintainable, well-documented software and tooling. A passionate functional programmer and active open-source contributor, he has improved core Haskell projects such as dhall-haskell, lens, and the Stack toolchain, often focusing on the intersection of API design, robustness, and documentation. At codecentric AG he applies pragmatic engineering to real-world systems while completing advanced studies at TU Darmstadt. His contributions range from adding language primitives and test suites to clarifying complex library docs, reflecting a rare blend of backend engineering and technical writing. Markus is particularly skilled at turning subtle correctness issues into clearer APIs and examples that help other developers adopt functional techniques.
14 years of coding experience
Master of Science (M.Sc.), Computer Science, Master of Science (M.Sc.), Computer Science at TU Darmstadt
English, German
Stackoverflow
2,849reputation
184kreached
65answers
8questions
Github Skills (47)
application-framework10
lib10
typeclass10
testing10
app-framework10
command-line-interface10
dhall10
code-library10
akka10
ui-design10
data-structure10
ruby10
scala10
normalization10
command-line10
Programming languages (27)
Github contributions (5)
commercialhaskell/stack
Jun 2015 - Jun 2018
The Haskell Tool Stack
Role in this project:
Back-end Developer
Back-end DeveloperContributions:55 commits, 27 PRs, 55 comments in 2 years 11 months
Contributions summary:Markus primarily contributed to the Haskell Tool Stack project by implementing new features and refactoring existing code. Key contributions include adding flags to the init command, such as `--force` and `--ignore-subdirs`, improving dependency visualization with the `stack dot` command, and simplifying and exporting `withLoadPackage`. They also addressed deprecated function usages and removed code duplication, enhancing the project's maintainability and functionality.
haskell
typelevel/cats
Dec 2015 - Dec 2017
Lightweight, modular, and extensible library for functional programming.
Role in this project:Back-end Developer
Back-end DeveloperContributions:14 commits, 20 PRs, 29 comments in 2 years 1 month
Contributions summary:Markus contributed to the core of the `cats` library, primarily focusing on adding new functionalities to data structures and utilities for functional programming. The commits involve adding methods like `fromEither` and `toValidatedNel`, improving the library's capabilities in data transformations and validation. The user also refactored the code by replacing uses of the deprecated `~>` with `NaturalTransformation` and added doctests, showing a focus on code quality, API design, and documentation.
functional-programming
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