About

Hi, I'm Parker Cassar, a backend and data infrastructure engineer. I focus on Postgres schemas and query performance, Spark SQL pipelines, REST APIs, and the systems that move and validate data at scale. Stack: Python, C++, Postgres, Spark, Docker, and Arrow.

I'm a merged contributor to Apache Arrow (C++/Python), including work on UUID extension-type interop so pandas and numpy round-trips follow extension-array semantics. I also built SteamCents, a rate-limited price-history pipeline over 200K+ Steam apps with Postgres storage and a public dashboard.

Previously I cut research data processing time ~30% by redesigning Postgres schemas and Spark jobs, shipped secure APIs across internal systems, and built LLM-based validation tooling. Earlier: Node/Mongo backends and a React/Next.js migration at IEEE Berkeley, plus a PyTorch OCR/translation pipeline at Pikrex.

UC Berkeley B.A. in Data and Computer Science (May 2026). M.S. Computer Science at Cal State Fullerton (expected May 2028).

See my resume and work for the full picture.

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while (!deck.isInOrder()) {
    print 'Iteration ' + i;
    deck.shuffle();
    i++;
}

print 'It took ' + i + ' iterations to sort the deck.';

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Item One Ante turpis integer aliquet porttitor. 29.99
Item Two Vis ac commodo adipiscing arcu aliquet. 19.99
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Item Four Vitae integer tempus condimentum. 19.99
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100.00

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