Alvin Endratno

@alvinend

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Frontend engineer who loves coffee and dogs!

Kyoto, JapanJoined January 2022

About

Hi there 👋

I'm an Indonesian who loves coffee and dogs!! Also, code sometimes.

Currently studying at Kyoto College of Graduate Studies for Informatics. 🏫

Work as Full-Stack Engineer

Available for

Nothing here yet.

Alvin Endratno's blogs

Alvin Endratno — Tech Founder, Engineer & Builder of PT Lensiro Digital Solusiblog.alvinend.tech22 posts

Articles Comments9

Recently published

AEAlvin Endratnoblog.alvinend.techMar 31 · 6 min read

The Founder's Perspective: Why Vertical SaaS?

Or: Why we stopped trying to build software for everyone, and built Lensiro just for optical shops. If you've ever walked into an optical shop in Indonesia to buy a pair of glasses, you probably didn'

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AEAlvin Endratnoblog.alvinend.techMar 20 · 13 min read

Building a Stock System That Cannot Be Wrong

The Problem Every Retailer Knows If you've ever managed inventory for a retail business, you know the nightmare: the system says you have 5 units, but you can only find 3 on the shelf. Or worse, you s

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AEAlvin Endratnoblog.alvinend.techJul 4, 2025 · 1 min read

200台サーバーのローカルllmクラスターを構築

Large-language-model（LLM）APIはとても強力ですが、コストが高いものです。一方、ローカルでLLMを推論させる場合、ハードウェアさえ手元にあればほぼ無料で動かせます。本記事では、オフィスで眠っていたApple Siliconラップトップを活用し、200台の推論クラスターを構築して本番トラフィックの25 %を処理するまでの道のりを紹介します。しかもデータセンター契約は一切ありません。ネタバレ: あるほこりだらけの会議室から始まり、最後は午前3時にオフィスのネットワークを総配...

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AEAlvin Endratnoblog.alvinend.techJul 4, 2025 · 3 min read

Building a 200‑Server Local LLM Cluster

Large‑language‑model (LLM) APIs are incredibly powerful—but they are also expensive. Local LLM inference, on the other hand, is almost free once the hardware is on your desk. This post walks through how we turned an ever‑growing pile of idle Apple si...

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AEAlvin Endratnoblog.alvinend.techJun 24, 2024 · 4 min read

Managing Snowflake's Procedure & UDF with Github

Snowflake is an incredible data platform that my company and I have been leveraging for about a year and a half. It's robust, reliable, and feature-rich, with an intuitive UI that makes it easy to navigate. Notably, we haven't experienced any acciden...

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Alvin Endratno

About

Available for

Alvin Endratno's blogs

Recently published

The Founder's Perspective: Why Vertical SaaS?

Building a Stock System That Cannot Be Wrong

200台サーバーのローカルllmクラスターを構築

Building a 200‑Server Local LLM Cluster

Managing Snowflake's Procedure & UDF with Github

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Alvin Endratno

About

Available for

Alvin Endratno's blogs

Recently published

The Founder's Perspective: Why Vertical SaaS?

Building a Stock System That Cannot Be Wrong

200台サーバーのローカルllmクラスターを構築

Building a 200‑Server Local LLM Cluster

Managing Snowflake's Procedure & UDF with Github