Laerte Pereira
Staff Software Engineer at Sayari
São Paulo, Brazil
Summary
🤩
Rockstar🎓
Top SchoolLaerte Pereira is a Staff Software Engineer based in São Paulo with 11 years of experience building and maintaining backend systems, now leading engineering efforts at Sayari. He progressed from Java roles in web and mobile development to senior Python and data engineering positions, reflecting strong full-cycle product delivery and migrations to modern Python ecosystems. Laerte contributes to notable open-source projects like Scrapy and Scrapyd, where he focused on bug fixes, compatibility updates, and removing deprecated code—work that improves reliability for a widely used web-scraping framework. He has hands-on experience managing dependencies, Python version support, and encoding/network edge cases that often surface in production crawlers and data pipelines. Colleagues describe him as a pragmatic technical lead who balances maintenance discipline with feature delivery. Fluent in tackling interoperability and legacy-support challenges, he brings practical engineering judgment to scaling data-driven systems.
11 years of coding experience
10 years of employment as a software developer
Bacharelado em Sistemas de Informação, Bacharelado em Sistemas de Informação at Uninove - Universidade Nove de Julho
Portuguese, English
Stackoverflow
260reputation
20kreached
7answers
1question
Github Skills (21)
debug10
python10
testing10
webscraping10
scrapy10
software-packaging10
application-framework9
debugging9
git9
app-framework9
version-control9
web-framework9
refactoring8
refactor8
encryption6
Programming languages (10)
Github contributions (5)
scrapy/scrapy
Oct 2021 - Jan 2023
Scrapy, a fast high-level web crawling & scraping framework for Python.
Role in this project:
Backend Developer
Backend DeveloperContributions:70 reviews, 32 commits, 56 PRs in 1 year 3 months
Contributions summary:Laerte primarily contributed to bug fixes and enhancements within the Scrapy framework. Their work included fixing a TypeError related to the use of `pathlib.Path` in FEEDS settings, correcting a `csviter` call, and removing deprecated code. They also addressed issues related to encoding in `TextResponse` and `http` requests, and removed the deprecated `scrapy.downloadermiddlewares.decompression` module.
pythonscrapyscraping-frameworkhigh-levelweb-crawling
scrapy/scrapyd
Jun 2022 - Nov 2022
A service daemon to run Scrapy spiders
Role in this project:Backend Developer
Backend DeveloperContributions:1 review, 8 commits, 6 PRs in 5 months
Contributions summary:Laerte primarily contributed to the maintenance and upkeep of the `scrapyd` project. Their work involved fixing PyPI links, removing dependencies, updating Python support, and adding a Python version classifier. Additionally, the user updated the minimum Python version, ensuring compatibility with newer versions while dropping support for older ones. These commits demonstrate a focus on project dependencies and compatibility.
pythonscrapydaemonscrapy-spidersspiders
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