Jan Ciesko
Senior Member Of Technical Staff at Sandia National Laboratories
Albuquerque, New Mexico, United States
Summary
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Rockstar🎓
Top SchoolJan Ciesko is a Senior Member of Technical Staff with a decade of experience in high-performance and parallel computing, currently based at Sandia National Laboratories in Albuquerque. He holds a PhD in Computer Architecture and has a track record spanning research engineering at Barcelona Supercomputing Center, founding a tech consultancy, and industry roles including Oracle. Jan contributes to flagship open-source HPC projects like Kokkos, where his back-end commits improve build systems, CUDA parallel reductions, and core C++ abstractions—demonstrating deep familiarity with performance portability and low-level build/test infrastructure. His expertise covers distributed parallel programming models, GPU offload, and dataflow accelerators, and he combines academic rigor with hands-on engineering to bridge research and production-grade HPC software. An understated strength is his ability to navigate both algorithmic architecture and practical build/test toolchains, making him effective at optimizing end-to-end performance.
10 years of coding experience
11 years of employment as a software developer
Dipl-Inf. univ. Computer Science, Dipl-Inf. univ. Computer Science at FAU Erlangen-NürnbergUPC Universitat Politècnica de Catalunya
English, German, Spanish, Slovak, French
Github Skills (13)
cuda10
c-language10
parallel-computing10
cprogramming-language10
k10
scientific-computing9
build-automation9
accelerated-computing9
high-performance9
cplus9
cluster-computing9
programming-language9
cpp9
Programming languages (8)
Github contributions (5)
kokkos/kokkos
Nov 2019 - Jul 2022
Kokkos C++ Performance Portability Programming Ecosystem: The Programming Model - Parallel Execution and Memory Abstraction
Role in this project:
Back-end Developer
Back-end DeveloperContributions:128 reviews, 46 commits, 47 PRs in 2 years 7 months
Contributions summary:Jan's commits primarily involve modifying build scripts and core C++ code related to the Kokkos performance portability programming ecosystem. Their work includes updating build configurations, modifying testing frameworks, and improving CUDA parallel reduce functionality. The user also made changes to view construction and layout, further indicating contributions to the library's core functionalities. Their contributions showcase a deep understanding of the project's underlying build processes and parallel programming techniques.
memorympic-plus-plusmulti-threadingkokkos
janciesko/ompi
May 2020 - Feb 2023
Open MPI main development repository
Contributions:32 pushes, 10 branches in 2 years 8 months
javampicppswig
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