D3Companion is an early-stage startup developing AI-powered tools
for the Architecture, Engineering and Construction (AEC) industry,
aiming to reshape how we design, build, and interact with the built
environment.

Role Description

We are seeking a motivated 3D Web Developer for a part-time role (20 hours/week) based in Berlin, Germany.

Eligibility

This is a Working Student (Werkstudent) position. To be considered, you must be currently enrolled as a student (BSc/MSc) at a university in Berlin or Brandenburg. Applications that do not meet this criteria cannot be considered.

Tasks

What you will do:

• Collaborate with the team to expand our web-based 3D editor, adding interactive visual features
• Build reusable components in TypeScript and React, using Three.js (React-Three-Fiber)
• Collaborate with engineers and designers to craft intuitive editing/transformation tools
• Write clean, maintainable code and help improve the editor's performance
• Explore new ideas and technologies to enhance product usability

Requirements

Required Skills:

• Proficient in React and TypeScript/JavaScript
• Hands-on experience with Three.js, React-Three-Fiber, or other 3D tools (Unity, Unreal, Blender, OpenGL)
• Strong problem-solving and debugging skills
• Fluent in English (written and spoken)

Nice to Have

• Experience with RESTful APIs, relational databases, or state management (Zustand/Redux)
• Familiarity with a React UI library (MUI, Chakra UI, or similar)
• Background in CAD tools (Rhino, AutoCAD), UI/UX, or game development
• German language skills

How to Apply:

Please include:

• Your CV
• A link to any 3D project you've built (GitHub, CodeSandbox, live demo..)

Applications without a 3D portfolio or relevant samples will not be reviewed.