Alexandra Hájková
Software Engineer at Red Hat
Vysočina, Czechia
Summary
👤
Senior🎓
Top SchoolAlexandra Hájková is a software engineer with 14 years of experience focused on embedded systems, multimedia open-source projects, and SIMD optimizations. Currently at Red Hat, she brings a background spanning quality engineering and embedded development, and she has contributed performance-critical VSX-accelerated SAD routines to the widely used libvpx video codec. Trained in physical chemistry at Charles University, she combines scientific rigor with low-level systems programming to squeeze performance from constrained hardware. Colleagues know her for pragmatic optimizations that bridge hardware capabilities and real-world multimedia workloads.
14 years of coding experience
5 years of employment as a software developer
Master's Degree, Physical Chemistry, Master's Degree, Physical Chemistry at Charles University in Prague
English, Czech, Russian
Github Skills (9)
c1710
video-encoding10
c1110
optimization9
optimisation9
numerical-optimization9
algorithm9
code-optimization9
algorithms9
Programming languages (2)
Github contributions (5)
webmproject/libvpx
May 2017 - Jun 2018
Mirror only. Please do not send pull requests.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 commits in 1 year 1 month
Contributions summary:Alexandra contributed to the `webmproject/libvpx` repository by adding and optimizing VSX-specific functions for Sum of Absolute Differences (SAD) calculations. They implemented new VSX-accelerated functions for various block sizes and average SAD computations. The primary focus was on improving the performance of video processing by leveraging the VSX instruction set on PowerPC architecture.
pull-requests
sasshka/glibc
Oct 2018 - Jun 2021
Contributions:98 pushes, 14 branches in 2 years 8 months
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