Ethan Klitzke
Database Administrator DevOps
Lincoln, Nebraska, United States
Summary
🤩
Rockstar🎓
Top SchoolEthan Klitzke is a Database Administrator and DevOps professional with 11 years of experience focused on site reliability, SQL Server performance tuning, and cloud optimization from Lincoln, Nebraska. He leads modernization efforts—migrating legacy systems to managed services and containers, rightsizing AWS resources, and automating workflows with PowerShell—while serving as a feature owner for SAML 2.0 single sign-on. Ethan pairs deep database expertise (index tuning, Query Store, workload prediction) with pragmatic DevOps practices and cross-team coaching to improve system observability using Grafana and SQL Sentry. An active open-source contributor, he has contributed to flagship projects like Bitcoin Core and the popular Spacemacs distribution, blending low-level performance improvements with tooling and developer ergonomics. Notably, he brings a customer-focused background from consulting and technical support, translating complex requirements into reusable, high-performance solutions.
11 years of coding experience
5 years of employment as a software developer
University of Nebraska-Lincoln
Stackoverflow
59reputation
3kreached
3answers
0questions
Github Skills (36)
c-language10
testing10
configuration-management10
bitcoin10
bash10
leveldb10
bitcoins10
vim10
emacs10
performance-optimization10
configuration-file10
configurations10
cprogramming-language10
git9
cryptography9
Programming languages (17)
Github contributions (5)
bitcoin/bitcoin
Jul 2017 - May 2018
Bitcoin Core integration/staging tree
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:33 PRs, 258 comments, 4 issues in 10 months
Contributions summary:Ethan's contributions primarily focus on improving the codebase's quality and maintainability by introducing linting checks for trailing whitespace. They also optimized prevector functionality by implementing memset for trivial types, and benchmarking prevector performance. Furthermore, they added a method for memory usage and related logging to LevelDB and made other database optimizations. They also worked on improving the system's performance and stability by setting a specific priority on the loadblk thread.
cryptographyp2pc-plus-pluscryptocurrencybitcoin-core
syl20bnr/spacemacs
Jul 2015 - Apr 2022
A community-driven Emacs distribution - The best editor is neither Emacs nor Vim, it's Emacs *and* Vim!
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:29 PRs, 20 comments, 1 issue in 6 years 9 months
Contributions summary:Ethan's contributions primarily focused on enhancing the Spacemacs configuration, a community-driven Emacs distribution. They added and modified various layers to integrate new features, including support for GPU-related modes, C/C++ code styling, and integration with tools such as pass and git. Their work also included minor bug fixes, code organization improvements (alphabetizing init functions), and adding features like ERC notifications.
configurationvimspacemacsemacsemacs-lsp
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