Jonathan Crapuchettes
Head Of Information Technology
Moscow, Idaho, United States
Summary
🤩
Rockstar🎓
Top SchoolJonathan Crapuchettes is a pragmatic technology leader with 12+ years building and operating large-scale data and infrastructure systems, currently serving as Head of Information Technology at RedBalloon. He combines hands-on backend engineering (Python, D, systems administration) with cloud and infra expertise (AWS, Terraform, Kubernetes, OpenStack) to design streaming pipelines and cost-efficient private clouds. At Emsi he led teams that processed hundreds of millions of job postings and built DAG-based batch systems using HTCondor and Spark, demonstrating both architectural vision and operational rigor. An active open-source contributor to high-performance compiler projects (notably optimizations in the D language compilers dmd and ldc), he brings low-level performance tuning experience that informs higher-level system design. Based in Moscow, Idaho, he mentors engineers and prefers practical, measurable improvements—whether squeezing more perf from SSE2 kernels or negotiating hardware purchases for a private cloud.
11 years of coding experience
15 years of employment as a software developer
Associate of Arts, Associate of Arts at Spokane Falls Community CollegeBS, Computer Science, BS, Computer Science at Eastern Washington University
Github Skills (14)
x8610
compiler10
assembly10
compiler-compiler10
dword10
sse10
x86-6410
assembler10
dt10
llvm10
programming-language9
fastest8
dmd8
fastly8
Programming languages (9)
Github contributions (5)
ldc-developers/ldc
May 2014 - Jul 2014
The LLVM-based D Compiler.
Role in this project:
Backend Developer
Backend DeveloperContributions:7 commits, 1 comment, 2 issues in 1 month
Contributions summary:Jonathan primarily contributed to the `ldc` compiler project by adding and optimizing SSE2 and SSE code for array operations within the D programming language. Their work involved modifying the `arraydouble.d` and `arrayfloat.d` files, introducing new code paths using inline assembly for x86 and x86-64 architectures to accelerate array computations. The commits also include bug fixes, code cleanup, and test updates to ensure the correctness and performance of the modifications. Overall, the user focused on performance optimization and improving the efficiency of core array operations within the compiler.
compilerldcdlangllvmd
dlang/dmd
May 2014 - Jul 2014
dmd D Programming Language compiler
Role in this project:Back-end Developer
Back-end DeveloperContributions:7 commits, 1 comment in 1 month
Contributions summary:Jonathan primarily contributed to the D programming language compiler, dmd, focusing on optimizing array operations. They implemented 64-bit SSE and SSE2 code for array operations involving double and float data types, improving performance. Additionally, the user fixed a search/replace issue and cleaned up code, including correcting author attributions and removing commented-out segments. They also added a test case for a specific druntime pull request.
compilersnativedubdmdstandard-library
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