About us Planner 5D is a general hub for home design, uniting over 100+ million users in 230 territories around our planet (yes, we have 2 users connecting from Antarctica each month!). Our platform simplifies the home renovation process from concept to execution, and this process has never been more straightforward with our cutting‑edge software. We are dedicated to streamlining the design experience, making the customization of dream homes accessible to everyone.

Our cross‑platform presence Our cross‑platform presence spans Web, iOS, Android, Windows, and MacOS, ensuring seamless synchronization for our users. Planner 5D is more than just software; it's a vibrant community of enthusiastic and product‑oriented professionals. From diverse backgrounds, our team collaborates across time zones, fueled by a shared passion to revolutionize the home design market.

We’re looking for a Java/Kotlin Engineer who will develop tools and pipelines related to AI, rendering, data conversion, and similar areas. Kotlin, Python ~ 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 ~ 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

- Developand support Python‑based Blender rendering pipelines, including scene processing, automation and production rendering workflows
- Work onplatform 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
- Gradle, dependency management, modular code structure, debugging, profiling, logging, and performance optimization
- Solid SQL knowledge (SQLite, MySQL, PostgreSQL)
- Abilityto work with math‑heavy, data‑heavy, or algorithmic tasks and turn them into stable production solutions
- Abilityto 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

- Understandingof 2D / 3D technologies and software (for example OpenGL, WebGL, Raytracing, Blender)
- Understandingof Kubernetes, Docker and nearby technologies Process data from APIs, databases, JSON, XML, and other sources
- Transform assets (images, 3D models, videos, etc.) Import and export of 2D/3D data from and to .Write aBlender 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 We believe in work‑life balance, so you'll receive around 30+ days of paid holidays per year Education courses for our team members, and we're willing to allocate funds toward your training expenses English classes on our corporate platform Offline company events in Lithuania and online team‑building

📌 Fullstack Developer (Angular y Java) (Barcelona)
🏢 Atwork
📍 Barcelona