Demian Hespe
Senior Software Engineer, Query Engine at VAST Data
Munich, Bavaria, Germany
Summary
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Senior🎓
Top SchoolDemian Hespe is a Senior Software Engineer specializing in query engines and database internals, currently advancing execution-layer capabilities at VAST Data. With 11 years of experience, he previously optimized core components of a cloud data warehouse at Firebolt—adding native vector indexing, geospatial processing, advanced caching, and multi-cloud storage support. He holds a PhD from Karlsruhe Institute of Technology where he developed scalable graph algorithms, fault-tolerance techniques, and high-performance C++ systems, and led multiple award-winning research projects and student supervisions. Demian combines a research pedigree with production-grade engineering, routinely translating algorithmic ideas into low-latency, large-scale systems. Based in Munich, he brings deep expertise in C++, query performance, and distributed storage, and a knack for turning theoretical speedups into measurable product improvements.
11 years of coding experience
7 years of employment as a software developer
Doctor of Philosophy - PhD, Computer Science, Doctor of Philosophy - PhD, Computer Science at Karlsruhe Institute of Technology (KIT)Master of Science (M.Sc.), Computer Science, Master of Science (M.Sc.), Computer Science at Karlsruher Institut für Technologie (KIT)
German, English
Github Skills (52)
algorithm10
graph10
vertex-cover10
xcb9
persistent9
option-parser9
panic8
xorg8
hierarchy8
titlebar8
raid8
world-of-warcraft7
sorted-lists7
nodejs7
capistrano7
Programming languages (14)
Github contributions (5)
Hespian/ParFastKer
May 2016 - Oct 2019
Contributions:203 commits, 1 push in 3 years 5 months
KarlsruheMIS/KaMIS
Dec 2017 - Jan 2023
Maximum independent sets and vertex covers of large sparse graphs.
Contributions:1 review, 5 commits, 2 PRs in 5 years 1 month
vertex-covergraphmaximum-independent-setsreductionssparse-graphs
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