Valentin Stanciu
Software Engineer at Meta
London, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolValentin Stanciu is a seasoned software engineer with 17 years of experience building large-scale infrastructure and developer tooling across top tech companies in London and beyond. He has shipped production systems at Google, Facebook/Meta, and Dropbox, contributing to cloud IAM, live media and photos infrastructure, and platform migrations from Python 2 to 3. A pragmatic back-end specialist, he also contributes to high-profile open source like mypy—improving type checking, daemon behavior, and performance-sensitive string encoding in mypyc. He has co-founded and briefly led technical strategy at a streaming/esports startup, bringing product-minded engineering to data-driven automation. Known for improving system efficiency (e.g., CPU and algorithmic optimizations) and stabilizing testing and CI workflows, he blends low-level performance work with large-system design. Valentin pairs deep technical chops with a history of mentoring and community engagement dating back to building Romania’s Infoarena competitive programming platform.
16 years of coding experience
12 years of employment as a software developer
POLITEHNICA București National University for Science and Technology
English, Romanian
Stackoverflow
977reputation
98kreached
21answers
0questions
gcloud
top-5%
Github Skills (17)
static-analysis10
type-check10
python10
back-end-development10
mypy10
type-checking10
gcloud9
data-structures8
data-structure8
algorithms8
algorithm8
google-compute-engine6
macos6
htaccess6
google-app-engine6
Programming languages (7)
Github contributions (5)
python/mypy
Aug 2022 - Nov 2022
Optional static typing for Python
Role in this project:
Back-end Developer
Back-end DeveloperContributions:87 reviews, 8 commits, 53 PRs in 2 months
Contributions summary:Valentin contributed to the development of mypy, a static type checker for Python. Their work included implementing support for classmethods and staticmethods within the `add_method` function. They also made adjustments to the daemon functionality, including passing timeout and log file arguments, and fixed a bug related to dmypy and JUnit XML output. Additionally, they optimized string encoding within mypyc for performance.
linterpythontypecheckerstatic-typing
svalentin/mypy
Aug 2022 - Mar 2025
Optional static typing for Python
Contributions:77 pushes, 58 branches in 2 years 7 months
mypystatic-typingpython
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