Mach9

Software Engineer - Test Automation (SDET)

Mach9
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2 months ago
San Francisco, CA, USAMid Level
H1B sponsor

Base Salary

$130k - $170k/yr

Responsibilities

  • Grow automated test coverage across the CAD editor and drive pages.
  • Evolve test infrastructure and CI to keep the test suite fast and reliable.
  • Build tools for coding agents to reproduce failures and collect diagnostic artifacts.
  • Identify and eliminate flaky tests so failing builds reliably indicate real bugs.
  • Improve the testability of the 3D editor and users’ CAD workflows.
  • Help engineers write testable code and durable tests for new features.
  • Track performance regressions and diagnose failures through application code and infrastructure.

Requirements

  • 3+ years of experience building and maintaining automated test suites for production web applications.
  • Experience with Playwright, Cypress, WebdriverIO, or similar test automation tools.
  • Proficiency in TypeScript or JavaScript and ability to read and modify application code.
  • Experience building or substantially evolving an end-to-end test framework, including fixtures, test data, isolation, parallel execution, and flakiness control.
  • Experience integrating tests into CI and maintaining fast, reliable pipelines.
  • Interest in AI-assisted development and using agents to improve software quality.
  • Experience testing CAD, 3D, geospatial, mapping, high-performance editor, or gaming products is preferred.

Benefits

  • Visa sponsorship is available for this role.
  • The team works from the SoMa office five days a week, with flexibility when needed.

Tech Stack

Categories

Mach9

About Mach9

11-50 employees

Mach9 develops AI-powered geospatial software that converts reality-capture datasets (LiDAR and imagery) into high-precision 3D maps and engineering-ready CAD/GIS deliverables. Its flagship product, Digital Surveyor, automatically extracts assets such as utility poles, signage, curbs, and striping for surveying, civil engineering, and GIS teams working on infrastructure projects. Founded in 2021 and headquartered in San Francisco, the privately held company offers a browser-based 3D CAD platform used to speed project delivery.

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