Karen Fernsler
Systems Engineer IV at Lawrence Berkeley National Laboratory
Emeryville, California, United States
Summary
👤
Senior🎓
Top SchoolKaren Fernsler is a seasoned HPC systems engineer with 15+ years building and tuning large-scale Linux clusters for research institutions, currently serving as Systems Engineer IV at Lawrence Berkeley National Laboratory. Her career includes a decade at NCSA where she helped deploy one of the world’s top supercomputers and close collaboration with vendors like DELL and Intel, plus earlier performance and porting work at Wolfram Research. Skilled in performance tuning, MPI, Perl and shell scripting, she combines low-level optimization with production operations to keep research workloads performing at scale. A physicist and computer scientist by training, she brings an experimental, measurement-driven approach to systems engineering and a knack for translating vendor hardware into reliable, high-performance clusters.
15 years of coding experience
16 years of employment as a software developer
BA, Physics, Computer Science, BA, Physics, Computer Science at Knox CollegeUniversity of Illinois Urbana-Champaign
Github Skills (9)
topology10
open-science10
container10
science10
grid10
linux1
hpc1
documentation1
singularity1
Programming languages (3)
Github contributions (5)
kmwf/topology
Jul 2020 - Apr 2022
Site and Resource topology data for the Open Science Grid
Contributions:15 pushes, 1 branch in 1 year 9 months
gridopen-sciencesciencetopology
kmwf/git-ansible-workshop
Aug 2020 - Aug 2020
My ansible/git workshop whathaveyou
Contributions:6 PRs, 10 pushes, 2 branches in 1 day
ansibleworkshop
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