java developer

Planner 5D provides a global home design platform that simplifies the renovation process from concept to execution. The software enables users to customize home and workspace designs across Web, iOS, Android, Windows, and MacOS.

• 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;
• Process data from APIs, databases, JSON, XML, and other sources;
• Transform assets like images, 3D models, and videos into different formats;
• Import and export 2D/3D data from and to .dxf, .dwg, and .blend formats;
• Write Blender plugins to load data and provide additional modeling functionality;
• Write high-performance code using CPU and GPU resources through parallel and concurrent programming;
• Build processing pipelines utilizing multi-threading and coroutines.

• Strong experience with Java and/or Kotlin on JVM;
• Practical experience with Python and willingness to work with Blender rendering pipelines;
• Good understanding of the JVM ecosystem including 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 and common tools;
• Fluent in English;
• Nice to have: Experience with Python, C / C++, popular libraries like Spring, Dagger, JUnit, Apache Commons, understanding of 2D / 3D technologies and software (e.g., OpenGL, WebGL, Raytracing, Blender), understanding of Mathematics, Geometry, Computer Vision, understanding of Kubernetes, Docker and nearby technologies.

• Great work environment that balances freedom and responsibility;
• Team of friendly and passionate enthusiasts;
• Around 30+ days of paid holidays per year;
• Company computer equipment by request;
• Education courses and training expense allocation;
• English classes on a corporate platform;
• Offline company events in Lithuania and online team-building;
• Unlimited free Planner5D subscriptions.