Kotlin/Java Internal Tools Engineer for 3D Pipelines

Planner 5D; Portugal; Remote; EUR 48,000 - 70,000; Full time

Job summary

Planner 5D is seeking a Java/Kotlin Engineer to develop tools and pipelines for AI, rendering, data conversion, and related areas. The role focuses on Kotlin/JVM backend tooling, Python-based Blender rendering pipelines, and platform components for catalogs and production workflows.

You will work on 3D content processing, geometry, scene preparation, and math-heavy tasks, delivering high-performance, well-tested code in a collaborative environment.

Qualifications

• Strong experience with Java and Kotlin on JVM.
• Practical experience with Python, willingness to work deeply with Python-based Blender rendering pipelines.
• Good understanding of JVM ecosystem: Gradle, dependency management, modular code structure, debugging, profiling, logging, and performance optimization.
• Solid SQL knowledge (SQLite, MySQL, PostgreSQL).
• Good understanding of object-oriented programming, SOLID principles, clean architecture, and maintainable code design.
• Ability to work with math-heavy, data-heavy, or algorithmic tasks and turn them into stable production solutions.
• Ability to write clean, reliable, high-performance code and cover critical logic with tests.
• Knowledge of Linux, common tools, and Linux ecosystem.
• Fluent in English.

Responsibilities

• Develop and maintain Kotlin/JVM-based backend tools, console applications, utilities, and automation pipelines.
• Develop and support Python-based Blender rendering pipelines, including scene processing, automation and production rendering workflows.
• Work on platform components for preparing catalogs, launching processing pipelines, converting 3D models, and supporting internal production workflows.
• Build and maintain tooling related to 3D content processing, geometry, scene preparation, wall generation, model conversion, and other math-heavy tasks.
• Research and evaluate current and upcoming technologies related to 3D, rendering, media formats, data processing, and production automation.
• Write maintainable, high-performance, and high-quality code using best practices, SOLID principles, automated tests, code reviews, and clean architecture.

Skills

Java/Kotlin on JVM

Python

English fluency

Tools

Dagger

JUnit

Spring

Blender

Job description

Planner 5D is seeking a Java/Kotlin Engineer to develop tools and pipelines for AI, rendering, data conversion, and related areas. The role focuses on Kotlin/JVM backend tooling, Python-based Blender rendering pipelines, and platform components for catalogs and production workflows.

You will work on 3D content processing, geometry, scene preparation, and math-heavy tasks, delivering high-performance, well-tested code in a collaborative environment.