Alexandru Jercaianu
Senior Software Engineer at Databricks
Redmond, Washington, United States
Summary
👤
Senior🎓
Top SchoolAlexandru Jercaianu is a senior software engineer with 11 years of experience specializing in networking, systems programming, and operating systems. He has driven critical networking features at Microsoft—owning Windows DNS/DHCP client services used on over a billion devices and leading a team to deliver Zero Trust DNS capabilities—and now works on OS and container platform at Databricks. His hands-on work includes implementing DNS-over-HTTPS, discovery of designated resolvers, and cross-platform filesystem improvements in the D standard library, demonstrating both systems-level rigor and open-source impact. Alexandru’s background spans high-performance networking (EVPN, TI-LFA), audio processing contributions to Mixxx, and experimental memory allocator research presented at DConf. Based in Redmond, he combines deep protocol and OS expertise with practical leadership, often focusing on secure, cross-platform, and performance-sensitive solutions. A philosopher-and-finance-curious thinker, he brings a thoughtful, multidisciplinary approach to complex engineering problems.
11 years of coding experience
7 years of employment as a software developer
POLITEHNICA București National University for Science and Technology
Github Skills (21)
algorithms10
filesystem10
c-language10
qt10
audio-processing10
dword10
file-operations10
standard-library10
audio10
effects10
fileio10
dt10
cprogramming-language10
windows9
posix8
Programming languages (4)
Github contributions (5)
dlang/phobos
Sep 2017 - Jun 2019
The standard library of the D programming language
Role in this project:
Back-end Developer
Back-end DeveloperContributions:79 commits, 35 PRs, 112 comments in 1 year 9 months
Contributions summary:Alexandru primarily contributed to the standard library of the D programming language, focusing on the `std/file.d` module. Their commits involved implementing and refactoring file system operations, particularly directory iteration and path manipulation. The user's work included improving safety and cross-platform compatibility for Windows, as well as optimizing performance.
c-programmingmetatype-conversionphoneticsglossary
mixxxdj/mixxx
Mar 2015 - May 2015
Mixxx is Free DJ software that gives you everything you need to perform live mixes.
Role in this project:Back-end Developer
Back-end DeveloperContributions:33 commits, 10 PRs, 26 comments in 1 month
Contributions summary:Alexandru primarily focused on improving the Mixxx DJ software by addressing bugs, enhancing the user interface, and adding new features. Their contributions include fixing issues related to skin updates and window title display. They also implemented a phaser effect, demonstrating their work in audio processing and effect design within the Mixxx project's audio-related focus.
everythingwindowshidmidilinux
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