Spiros Tsalikis
Senior Research And Development Engineer at Kitware Inc.
Chapel Hill, North Carolina, United States
Summary
👤
Senior🎓
Top SchoolSpiros Tsalikis is a Senior R&D Engineer at Kitware with eight years of experience building high-performance C++ systems for scientific visualization, notably contributing backend improvements to the widely used ParaView application. He specializes in optimizing VTK/VTK-m and ParaView filters and writers—delivering speedups of up to 79x and significant memory reductions through multithreading, implicit arrays, and GPU-aware algorithms. His work spans production-grade features (string formatting with fmt, SSIM-based image testing, enhanced multiblock inspection) and fundamental research from his PhD on parallel algorithms that yielded large performance and footprint gains. Based in Chapel Hill, he pairs academic rigor with practical engineering, having implemented parallel mesh and I/O pipelines, hardware-accelerated picking, and robust testing infrastructure. An unexpected facet: he also holds a Bachelor of Music in Cello, reflecting a long-standing commitment to disciplined practice and creative problem solving.
8 years of coding experience
7 years of employment as a software developer
High School Diploma, High School Diploma at Hellenic College of ThessalonikiBachelor of Science - BSc Informatics, Bachelor of Science - BSc Informatics at Aristotle University of Thessaloniki (AUTH)Bachelor of Music - BM Cello, Bachelor of Music - BM Cello at New Conservatory of ThessalonikiMaster of Science - MS Computer Science, Master of Science - MS Computer Science at Old Dominion UniversityDoctor of Philosophy - PhD Computer Science, Doctor of Philosophy - PhD Computer Science at University of North Carolina at Chapel Hill
English, Greek
Stackoverflow
45reputation
22kreached
2answers
3questions
Github Skills (12)
string-formatting10
c-language10
cprogramming-language10
string-format10
paraview9
vector6
parallel-processing6
openmp6
extern6
multithreading6
atomic6
cloning6
Programming languages (5)
Github contributions (5)
Kitware/ParaView
Jul 2021 - Dec 2022
VTK-based Data Analysis and Visualization Application
Role in this project:
Backend Developer
Backend DeveloperContributions:333 commits in 1 year 5 months
Contributions summary:Spiros primarily worked on enhancing the ParaView visualization application by incorporating string formatting capabilities using `vtkPVStringFormatter`. The contributions involved modifying and adding string formatting functionality within various filters, views, and representations, including the use of the `fmt` library for advanced string manipulation. These changes focused on improving the display of annotations, time information, and other text-based elements within the application.
data-analysisvisualizationvtk
spyridon97/vtk-external-facelist-evaluation
Apr 2023 - Nov 2025
Repository to evaluate the performance of boundary surface extraction filter
Contributions:2 PRs, 85 pushes, 3 branches in 2 years 7 months
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