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Multi-language static analysis plugin

Description

At JetBrains we develop a static code analysis plugin, which integrates our own code analysis engine with 3rd-party parsers (via LSP protocol) and shows analysis results inside the IDE (or in CI).

The plugin finds issues in user code: errors, potential bugs, and security problems. It supports multiple languages (Java, JavaScript, Python, C#, and others).

Your task is to help us to improve it: add quick fixes, better problem-trace visualization, fix infrastructure issues (e.g. make sure editor changes are immediately synced to backend), improve translation layer, create new inspections, and apply AI models.

Technologies used: Java/Kotlin, IntelliJ API, Qodana, TeamCity, OCaml

Requirements

Knowledge of Java or Kotlin

Admission

Internships 2026
Applications by 05.01.2026
Interview by 31.01.2026
Feedback and final results by 05.02.2026

Contact details

internship@jetbrains.com

Preferred internship location

Germany

Area

Development

Internship timing preferences

Flexible start