Senior Fusion 360 Add-in Developer (C++ / JavaScript)

We are developing, a professional, highly specialized woodworking and manufacturing add-in for Autodesk Fusion 360. The plugin automates furniture corpus engineering, hardware placement, and manufacturing data preparation. While the core business logic and feature prototypes are structured, we need an expert Senior CAD Developer to independently architect the software, refactor the existing code base, and handle advanced geometric computations via the Fusion 360 API. Hours & Operational Structure: - 20 hours per week - 100% Autonomy: You will work directly from strict markdown specifications. You are expected to design internal data structures and code architecture independently. - Continuous Deployment: Code must be pushed directly to our private GitHub repository. Weekly payouts are subject to checking the compiling build and functionality within Fusion 360. Detailed Scope of Work & Fusion 360 Specific Tasks: - Advanced C++ API Architecture: Creating robust, scalable object-oriented structures using the Fusion 360 C++ API. Implementing event handlers (DocumentEvents, CommandEvents) to manage user workflow states safely. - Geometric Modeling & B-Rep Manipulation: Deep interaction with the Fusion 360 geometry engine. You must be deeply comfortable with B-Rep data models (BrepBody, BrepFace, BrepEdge), precise matrix transformations (Matrix3D), vector math, coordinate system mapping, and setting up object attributes (Attributes collection) for persistent data tracking on CAD components. - UI/UX via Custom Palettes: Developing a responsive, modern UI inside Fusion 360 using JavaScript, HTML, and CSS (Custom Palettes). Building tight, seamless two-way JSON communication bridges (adsk.fusionSendData) between the HTML/JS frontend and the C++ backend. - Error Prevention: Writing highly stable code with proper exception handling to prevent core application memory leaks and CAD software crashes during heavy feature recalculations. Requirements: - Proven track record of shipping production-ready Autodesk Fusion 360 add-ins using C++ (you must be able to demonstrate this). - Expert-level knowledge of 3D vector math, geometric algorithms, and CAD data topology. - Strong frontend skills (Vanilla JS / modern UI frameworks) for fluid Custom Palette integration. - Strict adherence to writing modular, clean, and well-commented code. Please provide a link to a public GitHub repository, screenshots, or video demos showing a Fusion 360 add-in you have personally developed in C++.