Alexander Petrov
Sr. Staff Software Engineer at Facebook
Palo Alto, California, United States
Summary
🤩
Rockstar🎓
Top SchoolAlexander Petrov is a Sr. Staff Software Engineer in Palo Alto with 12 years of experience building low-latency, large-scale systems across search, ads, forecasting, compilers and OS-level infrastructure. He has driven core systems at major tech companies (Microsoft, Apple, Google, Pinterest, Facebook) and still codes in C++, Go, Python and Scala, blending IC depth with product-facing engineering leadership. Notable work includes early Apple Maps local search, billion-scale search index and distributed storage at Bing, and ad forecasting and multi-armed bandit pacing systems at Pinterest. He contributes to important open-source projects such as go-jsonnet and the RoaringBitmap Go implementation, improving C bindings and high-performance iterators that matter for real-world data platforms. Colleagues rely on him for designing deterministic, high-throughput pipelines and for shipping pragmatic, well-tested algorithmic improvements in performance-critical code.
12 years of coding experience
16 years of employment as a software developer
Lomonosov Moscow State University
Stackoverflow
69reputation
5kreached
4answers
8questions
Github Skills (28)
algorithm10
algorithms10
bitmap10
testing10
c1110
indexing10
data-structure10
c1710
go10
jsonnet10
bitmask10
data-structures10
bitmaps10
bitset9
benchmark9
Programming languages (6)
Github contributions (5)
google/go-jsonnet
Sep 2019 - Jul 2020
Role in this project:
Back-end Developer
Back-end DeveloperContributions:20 commits, 8 PRs, 16 comments in 10 months
Contributions summary:Alexander primarily focused on enhancing the go-jsonnet library's functionality. Their contributions included adding runtime checks for binary operations, disallowing unary plus operators on objects, and implementing the `jsonnet_import_callback` c-binding. They also addressed bugs in the c-bindings, improved native callback functionality, and refactored code related to handle management. This work demonstrates a focus on improving the core features and C bindings of the Jsonnet language.
RoaringBitmap/roaring
Jul 2019 - Mar 2020
Roaring bitmaps in Go (golang), used by InfluxDB, Bleve, DataDog
Role in this project:Back-end Developer
Back-end DeveloperContributions:33 commits, 10 PRs, 2 pushes in 8 months
Contributions summary:Alexander implemented and optimized the `IntPeekable` interface and its related iterators. They introduced methods such as `PeekNext` and `AdvanceIfNeeded` to allow for more efficient iteration and data access. The user also added extensive tests and benchmarks to validate the functionality and performance of the iterator implementations, focusing on runContainer, bitmapContainer, arrayContainer and runIterator implementations. They enhanced the code related to data structures and algorithms used for bitmap operations, which is the core of the `roaring` library.
golangcreditsoftware-designelasticroaring-bitmaps
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