Jos De Kloe
Onderzoeker at KNMI
Gelderland, Netherlands
Summary
👤
Senior🎓
Top SchoolJos De Kloe is an experienced researcher and developer with 16 years building satellite processing software and scatterometer-derived wind products at the Royal Netherlands Meteorological Institute (KNMI). He combines experimental and computational physics expertise—rooted in a drs in experimental physics—with strong practical programming skills in Fortran90, Python, C and XML to turn complex measurement simulations into robust operational code. Jos led development for ADM-Aeolus processing and Level-3 wind stress products, and previously worked on scatterometer simulation, fusion-plasma transport experiments and laser-cooling numerics. He also contributes to open-source quality engineering, hardening the widely used pyproj projection library with tests and portability fixes that prevent subtle runtime faults. Colleagues know him for bridging rigorous scientific methodology with production-grade software practices and for steady, low-noise ownership of mission-critical processing chains.
16 years of coding experience
1 year of employment as a software developer
drs, experimental physics, drs, experimental physics at Utrecht UniversityAtheneum, VWO diploma, Atheneum, VWO diploma at Rijksscholengemeenschap Buys Ballot
Dutch, English, dutch, middle (ca.1050-1350)
Stackoverflow
31reputation
3kreached
1answer
0questions
Github Skills (5)
unit-testing10
geospatial10
python10
cython8
eps6
Programming languages (8)
Github contributions (5)
pyproj4/pyproj
Nov 2015 - Nov 2019
Python interface to PROJ (cartographic projections and coordinate transformations library)
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:5 commits, 8 PRs, 28 comments in 4 years 1 month
Contributions summary:Jos primarily focused on improving the quality and reliability of the pyproj library. They implemented unit tests to check for missing inverse projection functions, ensuring the library handles edge cases correctly and prevents potential segmentation faults. Additionally, the user corrected code to maintain compatibility with older versions of the Cython compiler and ensured the correct initialization of variables for 32-bit systems, contributing to the overall stability of the project.
geospatialpythonpython-interfacecoordinate-transformationsgeodesic
jdkloe/pybufr-ecmwf
Nov 2009 - May 2022
Contributions:532 commits, 4 PRs, 127 pushes in 12 years 8 months
representationpythonbufrmeteorological-datapython-module
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