Jacob Carlborg
Senior System Developer at ApoEx
Stockholm, Sweden
Summary
🤩
Rockstar🎓
Top SchoolJacob Carlborg is a seasoned Senior System Developer based in Stockholm with 17 years of experience building and operating full-stack systems across Ruby on Rails, PostgreSQL, and modern cloud-native tooling. He blends backend development, DevOps and SRE practices—having automated VM lifecycles with Terraform/Packer, containerized services, and run game-server operations at scale for Electronic Arts. Jacob is an active open-source contributor to the D language ecosystem, adding parser features and standard-library ports to projects like LDC, Phobos and DMD, showing deep compiler and language-level insight that’s uncommon for a Rails-focused engineer. At ApoEx he works across the entire stack and lifecycle—features, testing, infra and operations—bringing pragmatic ownership to production systems. Known for turning manual, brittle processes into automated, observable pipelines, he’s equally comfortable troubleshooting low-level compiler flags or optimizing CI/CD for dozens of services.
17 years of coding experience
10 years of employment as a software developer
Bachelor of Science (BS), Computer Games and Programming Skills, Bachelor of Science (BS), Computer Games and Programming Skills at Stockholms universitet / Stockholm University
Github Skills (25)
unit-testing10
programming-language10
compiler-development10
llvm10
dword10
makefile10
standard-library10
parsing10
dt10
text-parsing10
backend10
documentation10
testing9
website-development9
algorithms9
Programming languages (20)
Github contributions (5)
dlang/dlang.org
Jan 2013 - Oct 2020
Pages for the dlang.org website, home of the D Programming Language
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 review, 25 commits, 23 PRs in 7 years 10 months
Contributions summary:Jacob primarily focused on updating build configurations and documentation related to the D programming language website. Their commits modified makefiles, specifically `posix.mak` and `win32.mak`, to include and exclude files related to Objective-C integration. The user also updated the versions of Dub and DMD utilized in the build process, contributing to the maintenance of the documentation build process. Furthermore, the user addressed minor issues such as removing trailing whitespace.
language-designddocphoneticslanguagetoolmanual
dlang/phobos
Mar 2011 - Mar 2020
The standard library of the D programming language
Role in this project:Back-end Developer
Back-end DeveloperContributions:64 commits, 6 PRs, 146 comments in 9 years 2 months
Contributions summary:Jacob primarily contributed to the D programming language's standard library, Phobos. Their work involved porting the `std.net.isemail` module from PHP to D. They made significant code changes to implement this module. They added unit tests and made various fixes. Additionally, they updated the build files to include the new module and improved the documentation.
c-programmingmetatype-conversionphoneticsglossary
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