Jason Barrella
Founding Engineer (Data & Platform)
Western Cape, South Africa
Summary
👤
Senior🎓
Top SchoolJason Barrella is a founding engineer and data-platform specialist with 8 years of experience building production data systems, most recently shaping data architecture and core models at a Series A startup. He combines leadership experience as a former CTO with hands-on implementation across backend services, ETL pipelines, and AI-enabled products, having managed multi-terabyte pipelines on PostgreSQL, S3 and Databricks. Jason’s MSc in Physics informs a rigorous, measurement-driven approach to data quality and calibration—illustrated by his contributions to the CERN ALICE O2 project improving TRD digit conversion and calibration interfaces. As a Top Rated Upwork freelancer and founder of an AI/data consultancy, he’s delivered profitable trading systems, novel SDKs, and LLM-powered assistants with live data access. Based in the Western Cape, he is passionate about establishing best practices and frameworks that scale teams as well as systems.
8 years of coding experience
4 years of employment as a software developer
Master of Science - MS, Physics, Research scholarship, Master of Science - MS, Physics, Research scholarship at University of Cape Town
Github Skills (11)
cer10
data-formats10
alice10
root-view10
c-language10
cpp10
calibration10
cprogramming-language10
cplus10
document-root10
data-format10
Programming languages (6)
Github contributions (5)
AliceO2Group/AliceO2
Aug 2020 - Aug 2021
O2 software project for the ALICE experiment at CERN
Role in this project:
Back-end Developer
Back-end DeveloperContributions:44 reviews, 8 commits, 9 PRs in 1 year
Contributions summary:Jason primarily worked on enhancing the TRD digit conversion process. Their contributions include developing macros to convert run2 data to run3 format, integrating trigger records, and incorporating MC labels. They also made improvements to the TRD tracklet transformer workflow and implemented a CCDB interface for calibration parameters, indicating a focus on data processing and calibration within the ALICE O2 software project.
c-plus-plusalice-experimentalicecern
jbarrella/AliceO2
Sep 2020 - Feb 2022
O2 software project for the ALICE experiment at CERN
Contributions:116 pushes, 13 branches in 1 year 5 months
cernalice-experimentalice
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