POSITION DESCRIPTION

We are seeking a highly skilled and mission-driven Sr. Staff Software Engineer to lead the design and development of digital modeling tools that enable patient-specific spinal surgery planning. This role will focus on creating a 3D digital twin platform that integrates CT-derived anatomy, custom implants, and parametric surgical models.
You will be responsible for building systems that support anatomical manipulation, implant simulation, Boolean geometry operations, region-specific measurement analysis, and 3D data processing pipelines. This position is ideal for someone passionate about computational geometry, surgical simulation, and high-impact medical software.

SKILLS

• Deep experience with 3D modeling, geometry processing, or CAD/CAM systems.
• Strong command of JavaScript/TypeScript and Node.js.
• Hands-on experience with OpenCascade (or other CAD kernels), including mesh/B-Rep handling, STEP/IGES import, and surface operations.
• Familiarity with WebAssembly, Emscripten, and JSWASM memory management.
• Solid foundation in math for 3D geometry, including transformations, normals, and spatial queries.
• Knowledge of rendering pipelines and WebGL-based visualization (e.g., Three.js, Babylon.js, vtk.js).
• Understanding of DICOM, STL, or segmentation workflows is a strong plus.

QUALIFICATIONS

• Bachelor’s or Master’s degree in Computer Science, Biomedical Engineering, Computational Geometry, or a related field.
• Candidates without a formal degree may also be considered with 7+ years of relevant professional experience, including at least 4 years of deep, hands-on work in 3D modeling and CAD/CAM systems.
• Experience with CAD, simulation, or surgical planning platforms.
• Strong communication skills and ability to collaborate with cross-functional teams, including clinical, product, and engineering stakeholders.
• Passion for building impactful tools that advance personalized medicine and surgical care.

3D Geometry Processing & Modeling

• Develop tools to manipulate anatomical models derived from CT scans, including segmentation, smoothing, and alignment.
• Implement Boolean operations, implant insertion logic, and model fusion using CAD-level kernels (e.g., OpenCascade).
• Design systems for measuring regional anatomical properties such as vertebral height, curvature, and alignment.
• Create and apply mesh simplification, remeshing, and surface quality improvement strategies.

Parametric Modeling & Implant Simulation

• Build tools that simulate how implant variations affect spinal anatomy and biomechanics.
• Develop parameter-driven models and transformation systems that respond to implant sizing, positioning, and morphology.
• Integrate implant data exported from Onshape or equivalent STEP-based sources.

Visualization & Interaction

• Support development of web-based 3D interfaces using Three.js, Babylon.js, or vtk.js for visualizing anatomy, implants, and surgical plans.
• Collaborate with product and UX teams to build intuitive interfaces for surgical modeling workflows.

Clinical Data Integration & Platform Engineering

• Interface with medical imaging pipelines (e.g., DICOM to STL/STEP) and maintain data integrity across 3D modeling workflows.
• Optimize modeling and Boolean performance for large-scale anatomical datasets in both browser and server-side environments.