Daniel Nachbaur
Senior Software Engineer Technical Lead at Leica Geosystems part of Hexagon
Balgach, St. Gallen, Switzerland
Summary
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Senior🎓
Top SchoolDaniel Nachbaur is a Senior Software Engineer and Technical Lead with 17 years of experience building high-performance, well-tested, reactive applications and libraries, currently leading engineering work at Leica Geosystems (Hexagon) from Balgach, Switzerland. He brings deep C++ expertise, professional-level CMake skills, and solid Python experience, with a background as a software architect at EPFL where he shaped robust systems for research and production. Daniel contributes to high-profile open-source projects like Intel OSPRay, focusing on back-end infrastructure, memory management, and distributed MPI rendering improvements that reduced messaging overhead and eliminated subtle race conditions. Known for pragmatic problem-solving, he pairs systems-level rigor with practical optimizations that prevent crashes and leaks, making complex rendering and distributed systems more reliable.
17 years of coding experience
8 years of employment as a software developer
Diplom, Computer Science, Diplom, Computer Science at Fachhochschule Kempten - Hochschule für Technik und Wirtschaft
Github Skills (12)
pov-ray10
raytracing10
mpi10
visualization10
c-language10
cprogramming-language10
visualizations10
render10
rendering10
distributed-systems9
memory-management9
multithreading8
Programming languages (5)
Github contributions (5)
RenderKit/ospray
Jun 2017 - Jan 2018
An Open, Scalable, Portable, Ray Tracing Based Rendering Engine for High-Fidelity Visualization
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 commits, 5 PRs, 12 comments in 6 months
Contributions summary:Daniel primarily contributed to the back-end infrastructure of the OSPRay rendering engine, focusing on memory management and the MPI module for distributed rendering. Their commits addressed memory leaks in various objects, corrected race conditions related to frame completion in the distributed frame buffer, and optimized the handling of FB_NONE to reduce the number of messages sent by workers. The user also fixed crashes related to the creation of lights when no renderer was present and made default library loading explicit.
c-plus-plusray-tracingosprayvolume-renderingportable
HBPVIS/ZeroEQ
Jul 2014 - Oct 2017
Cross-platform C++ library for fast binary and REST messaging
Contributions:3 releases, 130 commits, 120 PRs in 3 years 3 months
cppc-librarylinuxcross-platformrest
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