Clemens Raffler
Mobility Researcher at tbw research
Vienna, Austria
Summary
👤
Senior🎓
Top SchoolClemens Raffler is a mobility researcher and GIS specialist based in Vienna with 11 years' experience applying spatial planning, statistical modeling, and geospatial analysis to evidence-based transport and regional planning. He brings hands-on technical depth as a QGIS core contributor and back-end developer who has ported and optimized key spatial algorithms from Python to C++—including performance-critical tools like grid creation and line density—improving the platform used by millions. At tbw research he combines project management with decision-support system development, OpenData integration, and reproducible analysis workflows. Trained as a Diplom‑Ingenieur from TU Wien, he pairs academic rigor with practical coding and a passion for alpine activities that often inspires field-driven insights into mobility patterns.
11 years of coding experience
Vienna University of Technology
German, English, Spanish
Stackoverflow
101reputation
0reached
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Github Skills (7)
c-language10
gis10
cprogramming-language10
qgis10
algorithms9
postgresql6
python6
Programming languages (4)
Github contributions (5)
qgis/QGIS
Oct 2019 - Nov 2021
QGIS is a free, open source, cross platform (lin/win/mac) geographical information system (GIS)
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:3 reviews, 175 commits, 29 PRs in 2 years 1 month
Contributions summary:Clemens's commits primarily focus on porting existing algorithms from Python to C++ within the QGIS project. They have rewritten the "Create Grid" and "Densify Geometries by Count" algorithms in C++ for performance improvements. Additional contributions involve refactoring and optimizing existing algorithms like "Random points in extent" and implementing new algorithms such as "Line Density". Furthermore, the user implements and refactors the underlying libraries of the core algorithms which is related to raster data import.
geographical-information-systemgisqgis
root676/root676.github.io
Feb 2018 - Nov 2022
Contributions:15 PRs, 31 pushes, 1 branch in 4 years 10 months
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