Java/Kotlin Internal Tools Developer
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AI Summary
Develop and maintain Kotlin/JVM-based backend tools and Python-based Blender rendering pipelines for AI and 3D content processing. Build high-performance automation pipelines for 3D model conversion, scene preparation, and data processing.
We’re looking for a Java/Kotlin Engineer who will develop tools and pipelines related to AI, rendering, data conversion, and similar areas.
Our tech stack:
- Languages: Kotlin, Python
- Core development: Kotlin/JVM, Java, coroutines, serialization, reflection, dependency injection with Dagger
- 3D and rendering workflows: Blender Python scripting, glTF processing, 3D model conversion, geometry/math-related tooling, scene and asset preparation pipelines
- Data and storage: MongoDB, SQLite, FlatBuffers
- Infrastructure and observability: Prometheus metrics, Sentry, CI/CD, Git, Git LFS, internal monitoring and logging
- 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.
- Strong experience with Java and/or 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.
- Experience with Python, C / C++ languages;
- Experience with popular libraries like Spring, Dagger, JUnit, Apache Commons;
- Understanding of 2D / 3D technologies and software (for example OpenGL, WebGL, Raytracing, Blender);
- Understanding of Mathematics, Geometry, Computer Vision;
- Understanding of Kubernetes, Docker and nearby technologies.
- Process data from APIs, databases, JSON, XML, and other sources;
- Transform assets (images, 3D models, videos, etc.) into different formats;
- Import and export of 2D/3D data from and to .dxf/.dwg/.blend formats;
- Write a Blender plugin to load data and provide additional modeling functionality;
- Write high performance code using CPU and GPU to the max (using parallel, concurrent programming like coroutines, threads, Rx, promises, futures, etc.);
- Build processing pipelines, where multiple threads are used to max out CPUs and do lots of different processing on multiple threads/coroutines/Rx/java streams/etc.
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