Daniel Ringwalt
Senior Software Developer at Black Canyon Consulting LLC
New Jersey, United States
Summary
🤩
Rockstar🎓
Top SchoolDaniel Ringwalt is a Senior Software Developer with 14 years of experience building scalable full-stack web applications and WebAssembly-powered systems, currently contributing to the NIH NCBI Sequence Read Archive. He led a WebAssembly port of Google Sheets' formula engine and introduced algorithmic improvements that increased document scale limits, blending performance engineering with large-scale product impact. His open-source work includes back-end contributions to Google's error-prone and J2CL projects—adding binary-compatibility-safe refactors and WASM support—and test automation for the widely used VexFlow music notation library. Daniel's background spans research domains from optical music recognition to bioinformatics and fluorescence bioimaging, giving him an uncommon cross-disciplinary fluency between scientific computation and production software. Based in New Jersey, he pairs rigorous engineering with research instincts, often surfacing subtle correctness and performance gains that matter at scale.
14 years of coding experience
12 years of employment as a software developer
Master of Science in Engineering Biomedical Engineering, Master of Science in Engineering Biomedical Engineering at Johns Hopkins Whiting School of EngineeringBachelor of Science (B.S.) Computer Science, Bachelor of Science (B.S.) Computer Science at Carnegie Mellon University
English
Github Skills (16)
javas10
jcl10
blazor-webassembly10
javascript10
webassembly10
static-analysis10
vexflow10
music-notation10
transpiler10
java10
testing10
refactoring9
compiler-compiler9
unit-testing9
compiler9
Programming languages (10)
Github contributions (5)
google/j2cl
Jan 2020 - Oct 2021
Java to Closure JavaScript transpiler
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 commits in 1 year 9 months
Contributions summary:Daniel primarily contributed to the Java to Closure (J2CL) transpiler project. Their work involved adding functionality to support WASM (WebAssembly) compilation, including implementing an `instantiateBlocking` function. They also introduced features for EnumMap, such as `setAt()` and testing capabilities. Additionally, the user made modifications to compilation processes and optimization flags for the WASM output.
j2cljsinteropjavascriptcompilertranspiler
google/error-prone
Dec 2017 - Aug 2018
Catch common Java mistakes as compile-time errors
Role in this project:Back-end Developer
Back-end DeveloperContributions:6 commits in 8 months
Contributions summary:Daniel primarily contributed to the `error-prone` project by addressing binary compatibility issues and making enhancements to the `ThreadSafety` class. They added and removed methods to facilitate the transition to a more maintainable code structure, specifically related to the use of `ImmutableSet`. Additionally, the user made public the `ImmutableAnalysis.checkForImmutability()` method. This work involved careful refactoring to ensure backward compatibility and enhance the project's functionality.
compile-timemistakescompilestatic-code-analysisjava-common
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