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# Software Engineer - 3D Graphics

- **Company:** Mach9 LLC
- **Location:** San Francisco, CA, United States (Remote available)
- **Contract:** Internship / Graduate position
- **Skills:** Computer-Aided Design, Geographic Information Systems, Artificial Intelligence, Digital Rendering, OpenGL Shading Language, Software Construction, TypeScript, WebGL, Three.js, Lidar
- **Published:** October 22, 2026
- **Apply:** https://startup.jobs/software-engineer-3d-graphics-mach9-10541934

## About the Role

* A strong foundation in 3D math and spatial reasoning, including transforms, planes, and projections
 * Experience building software through coursework, personal projects, internships, or full-time work
 * The ability to read and change code you did not write
 * Attention to correctness and performance
 * Sound judgment about when to refine a solution and when to ship it
 * Experience with TypeScript and browser graphics, or comparable experience writing performance-sensitive graphics code in a statically typed language
 * The initiative to investigate problems, ask useful questions, and finish what you start

Bonus experience

 * WebGL, GLSL, Three.js, Cesium, or another real-time graphics system
 * Point clouds, geospatial data, or large-coordinate rendering
 * Experience applying geometry, spatial algorithms, or numerical methods to open-ended problems with noisy data and real-world tradeoffs
 * CAD, mapping, visualization, robotics, or game-engine projects

## Description

At Mach9, Digital Surveyor turns massive LiDAR datasets into precise CAD deliverables, automating work that currently takes surveyors and engineers weeks. Making that possible in a browser requires a 3D engine that can render tens of millions of points while supporting CAD-grade picking, clipping, snapping, and measurement. You'll work directly on that engine and the tools built on it.

This role is ideal for an early-career engineer with a strong foundation in 3D math who wants to work on a real production renderer, not a demo.

You'll do well here if you enjoy digging into difficult technical problems and building software that stays fast and reliable on large, messy real-world datasets. When the right approach isn't obvious, you'll research how others have solved similar problems, test your assumptions, and choose a practical solution. Our engineers are trusted to own their work and drive meaningful outcomes.

Where you will make an impact

 * Build 3D tools that surveyors use to inspect point clouds and create precise engineering drawings
 * Extend our point-cloud renderer and GPU picking system
 * Solve geometry problems behind clipping, snapping, construction planes, and camera controls
 * Find and fix performance problems that appear with large real-world datasets
 * Improve the shared rendering and interaction systems behind our CAD tools