R Espinoza
Senior Software Engineer, Core Services at Milence
Randstad, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolR. Espinoza is a seasoned software engineer with 16 years of experience building production-grade AI, data and cloud-native systems across startups and scale-ups in Europe. He specializes in MLOps and AI workflows, having optimized training and inference pipelines (PyTorch, CUDA, Prefect, Slurm) and slashed test and CI times via parallelization and caching. At companies from Paige to Adyen and Milence he has driven platform-level improvements—modernizing Python/CUDA stacks, improving observability, and designing core services for high-performance EV charging networks. A long-time Python and Scrapy contributor, he maintains practical open-source ties including fixes and docs for the widely used Scrapy project and a scrapy-redis integration. Comfortable both as a founding engineer and a senior technical mentor, he blends hands-on backend engineering with systems thinking and cross-team collaboration. He holds graduate studies in mathematics engineering and often brings algorithmic rigor to pragmatic production problems.
16 years of coding experience
17 years of employment as a software developer
Graduate Studies Mathematics Engineering, Graduate Studies Mathematics Engineering at University of Buenos AiresBachelor's Degree Mathematics Engineering, Bachelor's Degree Mathematics Engineering at Universidad Mayor de San Simón
Spanish, English
Stackoverflow
6,664reputation
632kreached
118answers
1question
django-models
top-5%
substitution
top-5%
scrapy
top-1%
python
top-5%
pandas
top-5%
django
top-5%
Github Skills (25)
application-framework10
python10
redis10
app-framework10
distributed-systems10
webscraping10
crawling10
scrapy10
crawler10
web-framework10
documentation10
pandas9
django9
substitution9
django-models9
Programming languages (17)
Github contributions (5)
rmax/scrapy-redis
Aug 2011 - Jun 2020
Redis-based components for Scrapy.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 releases, 27 reviews, 149 commits in 8 years 10 months
Contributions summary:R contributed to the Scrapy-Redis project by implementing and updating core components. This involved adding an example project, modifying settings and pipelines, and updating the README file to reflect the project's usage and configuration. The user also removed deprecated settings and added dependencies for the project's setup. Furthermore, the user integrated a Redis-based base spider to read and process URLs.
redisscrapypythoncrawlerdistributed
scrapy/scrapy
Jan 2010 - Mar 2017
Scrapy, a fast high-level web crawling & scraping framework for Python.
Role in this project:Back-end Developer & Technical Writer
Back-end Developer & Technical WriterContributions:67 commits, 24 PRs, 104 comments in 7 years 2 months
Contributions summary:R primarily contributed to the Scrapy framework by addressing documentation issues, fixing typos, and providing updated code examples within the documentation. They also merged upstream changes, indicating involvement in maintaining the codebase and keeping the documentation synchronized with the latest framework updates. Further contributions include adding a Python utility for comparing object attributes.
pythonscrapyscraping-frameworkhigh-levelweb-crawling
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