Berwyn

Software EngineerI build distributed systems, ML pipelines, and AI tooling.

berwyn@portfolio — zsh
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guest@berwyn.dev:~$
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clickstream records processed
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infra cost reduction
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ML prediction accuracy gain

#about

Hi, I'm Berwyn — a software engineer and CS student at Stanford

(BS/MS, expected 2028), working across distributed systems, machine

learning, and AI infrastructure.

I like building things from scratch — a Raft-inspired in-memory cache in Go,

ML pipelines processing 10B+ records, and AI visibility tooling that cut report

generation from hours to minutes.

#projects

#education

Stanford University BS & MS, Computer Science (GPA 3.80)

Expected Jun 2028

Coursework: ML for Algorithmic Trading, NLP with Deep Learning, Deep Learning for Computer Vision, Reinforcement Learning, Design & Analysis of Algorithms.

#experience

Software Engineer @ The Prompting Company

Jun 2026 — Present

Built a Go CLI (15+ subcommands) for AI bot-traffic analytics, and an end-to-end AI visibility pipeline across ChatGPT, Perplexity, and Gemini — Temporal fan-out + Tinybird aggregation cut report generation from 3 hours to under 5 minutes.

Machine Learning Engineer @ Telkomsel

Jun 2025 — Aug 2025

Designed a hybrid model-serving architecture (in-house inference + AWS) that replaced Vertex AI and cut annual infra cost by 90%. Processed 10B+ clickstream records in BigQuery and built CatBoost ranking pipelines end-to-end.

ML Research Assistant @ Stanford Materials Science & Engineering

Jun 2024 — Aug 2024

Built a PyTorch + C++ pipeline showing lightweight Moment Tensor Potentials reach 90% of SOTA equivariant-NN accuracy. Co-authored a peer-reviewed paper on a split-model framework with a 10x gain in energy/force prediction accuracy.

#skills

Languages

PythonC++CGoTypeScriptJavaScriptSQL

ML / Data

PyTorchLangChainCatBoostBigQuery

Infra / Backend

AWSDockerPostgreSQLKafkagRPCTemporal

Web / Tools

ReactNext.jsTailwindFirebaseLinux

#contact

Want to work together or just say hi? Reach out.