# developer-tools - Paul Piper

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2026.10.12 → [A LANGUAGE SERVER THAT READS THE COMPILER'S MIND](https://www.paul-piper.de/posts/jetls-compiler-powered-language-server/)

Most language servers read your file and make an educated guess about what the compiler would say. JETLS.jl skips the guessing and asks the compiler directly. That distinction sounds small until you have watched a language server get something wrong that the real compiler would never get wrong, because the language server never ran your code through inference in the first place. It parsed the syntax tree, matched some patterns, and did its best.

Background

Education

EBS Business School, SFSU, HSG

Experience

20 Years Enterprise Systems

Built

[Scipio ERP - ERP & Ecommerce System](https://scipioerp.com)

Author

["Start/Up - Set the net on fire"](https://www.amazon.com/dp/B0DDKYNNSJ)

JetBrains

5x Plugins Published

Tech Stack

Languages

Java, Python, JS, TS, Rust, Go, Swift, PHP

Frontend

React, Vue, Angular, HTML/CSS

Databases

PostgreSQL, MySQL, MongoDB

Caching

Redis, Memcached

Key Clients

Enterprise

L'Oréal, Amadeus, Konica Minolta, Orange

Digital

1&1 Internet, Sedo.com, Creditsafe

Public

DRK, Kanton Basel, Aktion Mensch, Börsenverein

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