Alfonso Cuellar
Data Engineer
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolAlfonso Cuellar is a Data Engineer based in New York with nine years of experience designing and automating data pipelines and production systems for financial products. At CreditSights he transformed a weekly, manual risk-product workflow into a daily, automated process and built a high-performance Redshift-backed architecture that cut data load times from 45 minutes to five while adding validation, monitoring, and alerting. He combines strong PySpark, Airflow, AWS (Lambda, EMR, S3, Redshift) and API development skills with a quantitative understanding of financial models, enabling rapid diagnosis and resolution of production data issues. Alfonso also contributes to open-source front-end work—adding ByteDance mini-program support to the Remax project—showing a breadth that spans back-end data infrastructure to client-facing UI integrations. He mentors junior engineers and interns, writes clear operational runbooks, and has a background in applied mathematics and physics that informs his analytical approach. Known for pragmatism and a track record of turning cumbersome manual processes into reliable, monitored automation, he thrives on improving data availability and resilience for client-facing services.
9 years of coding experience
2 years of employment as a software developer
Colegio Nueva GranadaBachelor of Science - BS, Mathematics - Applied Analysis, Pure Physics, Political Science, Bachelor of Science - BS, Mathematics - Applied Analysis, Pure Physics, Political Science at University of Miami
Github Skills (6)
min10
javascript10
front-end-development10
alipay-mini-program10
react10
css8
Programming languages (3)
Github contributions (5)
remaxjs/remax
Aug 2019 - May 2020
使用真正的 React 构建跨平台小程序
Role in this project:
Front-end Developer
Front-end DeveloperContributions:34 commits, 37 PRs, 98 pushes in 8 months
Contributions summary:Alfonso focused on adding support for ByteDance mini-programs to the Remax project, which involves building cross-platform mini-programs with React. Their contributions included implementing necessary API adaptors, modifying component definitions, and adjusting templates to support the Toutiao platform. The user also addressed CSS-related issues and fixed issues related to native component rendering, and optimized existing templates.
reactreactjsminiprogramwechat-mini-programalipay-mini-program
Pochodaydayup/veigar
Dec 2019 - Jul 2020
Contributions:39 commits, 1 PR, 3 pushes in 6 months
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