Jeff Johnson
Principal Consultant at Cohere Consulting LLC
Seattle, Washington, United States
Summary
👤
Senior🎓
Top SchoolJeff Johnson is a Principal Consultant and hands-on technical leader with 11+ years building high-performance scientific and engineering software, from climate modeling and atmospheric simulators to low-latency networking and videoconferencing systems. He excels at simplifying complex, legacy codebases—applying test-driven design, performance-minded algorithms (C++, Fortran, Python, MPI) and unobtrusive UX—to deliver maintainable solutions that reveal underlying structure. At Lawrence Berkeley and national labs he led small interdisciplinary teams on mission-critical simulations and numerical toolkits, and more recently runs Cohere Consulting to help organizations convert messy technical debt into practical, well-documented systems. Known for a "helping less be more" mindset, he pairs deep domain modeling with pragmatic process improvements and automated workflows to increase discoverability and reduce maintenance costs. Based in Seattle, he combines research rigor (PhD-level applied science) with product-focused consulting, often surfacing non-obvious simplifications that unlock long-term value.
11 years of coding experience
13 years of employment as a software developer
Doctor of Philosophy (Ph.D.), Applied Science, Doctor of Philosophy (Ph.D.), Applied Science at University of California, DavisUniversity of California San Diego
Spanish
Github Skills (51)
climate-model10
atmosphere10
corona10
toolbox10
fortran10
energy10
climate-science10
earth10
renewable-energy10
snl-applications10
climate-change10
shacl10
exascale10
owl10
modeling10
Programming languages (6)
Github contributions (5)
eagles-project/skywalker
Nov 2021 - Dec 2022
A tool for conducting code-to-code comparisons and parameter studies on box models.
Contributions:17 reviews, 180 commits, 45 PRs in 1 year 1 month
pythonboxparameterconductingcomparisons
jnjohnsonlbl/alquimia-dev
Dec 2015 - May 2016
Contributions:97 pushes, 11 branches, 1 tag in 5 months
pythongeochemistrydevbitbucketpflotran
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