Mark Isaacson
Software Engineer at Meta
Mountain View, California, United States
Summary
👤
Senior🎓
Top SchoolMark Isaacson is a systems programmer with 12 years of experience building reliable developer workflows and distributed systems, currently shaping C++ and Python CI at Meta. He is skilled in C++14, D, concurrency, and maintainable code, and has contributed to high-profile open-source projects including Facebook's folly and the D standard library (phobos). A former teaching assistant and regular tech speaker (DConf, NDC Oslo), he authors the blog Modern Maintainable Code and has published on isocpp.org. His hands-on work spans production reliability—fixing memory-safety bugs and refactoring for maintainability—to developer experience, hiring, and org-level roadmapping. Notably, he wrote an ODBC driver in D for Presto as an intern and spends weekends reading distributed-systems papers for fun. Based in Mountain View, he prioritizes timeliness, efficiency, and long-lived code in large engineering organizations.
12 years of coding experience
1 year of employment as a software developer
BSE, Computer Science and Engineering, GPA: 3.647/4.00 (Major GPA: 3.720), BSE, Computer Science and Engineering, GPA: 3.647/4.00 (Major GPA: 3.720) at University of MichiganComputer Science, Computer Science at Carnegie Mellon UniversityLower Merion High School
English
Github Skills (20)
json10
algorithms10
c-language10
testing10
memory-management10
dword10
standard-library10
dt10
cprogramming-language10
code-optimization9
math9
mathematics9
type-conversion9
data-structures8
data-structure8
Programming languages (9)
Github contributions (5)
facebook/folly
Mar 2015 - Jul 2016
An open-source C++ library developed and used at Facebook.
Role in this project:
Backend Developer & Test Automation Engineer
Backend Developer & Test Automation EngineerContributions:7 commits in 1 year 4 months
Contributions summary:Mark primarily focused on improving the `folly` library, contributing to its stability and maintainability. Their work involved refactoring and removing unnecessary code, as seen in the removal of includes from `FBVector` and adjustments to `Foreach.h`. The user also added explicit `main` functions to tests within `symbolizer` and implemented a `make_array` function to enhance array creation. Additionally, the user fixed a heap-use-after-free error, demonstrating a commitment to code quality and addressing potential memory safety issues.
facebookcppc-library
dlang/phobos
May 2014 - Jan 2016
The standard library of the D programming language
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits, 1 PR, 3 comments in 1 year 7 months
Contributions summary:Mark contributed to the standard library of the D programming language, focusing on the `std.json` and `std.math` modules. They implemented an "in" operator for the `JSONValue` struct and refactored the `toString` method to be `const`. Additionally, the user converted `real` to `double` in the `JSONValue` struct, and categorized functions within `std.math`. They also added functionality to specify the shell path in process functions.
c-programmingmetatype-conversionphoneticsglossary
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