Mark Adler
San Francisco Bay Area United States
Summary
🤩
Rockstar🎓
Top SchoolMark Adler is a veteran systems engineer and technology manager with nearly four decades of experience designing and operating complex aerospace and autonomous systems. He played central roles in landmark planetary missions—conceiving the Mars Exploration Rover program, serving as deputy mission systems manager and Spirit mission manager, and leading mission engineering for Cassini/Huygens—and later managed NASA flight‑technology demonstrations like the Low Density Supersonic Decelerator. At Apple he led work on autonomous systems, and his background spans systems engineering, probabilistic risk assessment, mission design, and project leadership. He pairs deep theoretical training (PhD in Physics, MS EE, BA Math) with hands‑on low‑level software skills evidenced by sustained contributions to widely used compression libraries such as zlib and pigz. Known for solving subtle implementation bugs and optimizing C code, he brings a rare mix of spacecraft systems architecture and pragmatic, performance-minded coding. Based in the San Francisco Bay Area, he excels at turning high‑risk, novel concepts into operational capabilities.
20 years of coding experience
5 years of employment as a software developer
California Institute of TechnologyBA, Mathematics, BA, Mathematics at University of Florida
Github Skills (25)
algorithm10
gzip10
compress10
compression-algorithm10
memory-management10
c-programming10
c1110
c1710
deflate10
performance-optimization10
compression10
cprogramming-language10
optimization10
code-optimization9
algorithms9
Programming languages (19)
Github contributions (5)
madler/zlib
Sep 2011 - Jan 2023
A massively spiffy yet delicately unobtrusive compression library.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 releases, 460 commits, 226 PRs in 11 years 6 months
Contributions summary:Mark contributed to the ZLib library by improving the performance of the deflate algorithm for level 0 compression (no compression) by reducing the number of memory copies and sliding of the window. They also fixed a bug with Z_RLE, and contributed to the documentation. Furthermore, the user addressed a crash bug within deflate() when using the Z_FIXED option with a very large number of matches.
compression
madler/pigz
Jan 2010 - Dec 2022
A parallel implementation of gzip for modern multi-processor, multi-core machines.
Role in this project:Back-end Developer
Back-end DeveloperContributions:271 commits, 13 PRs, 50 pushes in 13 years 1 month
Contributions summary:Mark primarily worked on the `pigz` project, focusing on improvements and bug fixes related to the compression and decompression functionalities. They updated the software version number and addressed various issues. Their contributions included fixing code problems, such as removing unused parameter warnings and dealing with issues involving edge cases in zipped data. They added code to the project to implement features such as handling different file types, and for adding options for setting a comment.
gzipmulticore
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