---
title: 'Software Engineer - Test Automation (SDET) at Mach9'
canonical: 'https://feeny.ai/job/software-engineer-test-automation-sdet-mach9-san-francisco-dchqfg4k8ysa'
type: 'job'
last_seen: '2026-09-06'
---

# Software Engineer - Test Automation (SDET) at Mach9

- **Company:** Mach9
- **Location:** San Francisco, CA
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-09-04
- **Last confirmed live:** 2026-09-06
- **Apply:** https://jobs.ashbyhq.com/mach9/95b6b89b-4c39-4e10-97eb-f29aa463c894

## Job description

## THE ROLE

At Mach9, Test Automation Engineers protect the workflows that civil engineers and surveyors rely on when they work in our browser-based 3D CAD platform. Coding agents do a growing share of our development work, but that only works when we have automated checks that return fast, trustworthy answers. You'll own the accuracy of those answers — giving us coverage that spans from data upload to deliverable export — and the test infrastructure it runs on.

This role is ideal for engineers who have built and maintained automated test suites for production web applications and can chase a failure through app code and infrastructure all the way to its root cause.

Working closely with our platform engineers, you'll help us ship confidently while shipping quickly. Success in this role will mean that our regressions will be caught by tests rather than by customers, and our engineers and agents will move faster because they'll know that your tests tell them immediately when they break something.

## WHERE YOU WILL MAKE AN IMPACT

- Grow automated coverage across our CAD editor and drive pages
- Evolve our test infrastructure and CI so our test suite stays fast and reliable as its coverage grows
- Build tools for coding agents to reproduce the failures and artifacts that they need to diagnose regressions and verify fixes
- Root out flaky tests so a failing build always means there's a real bug
- Make our 3D editor more testable so we can automatically test our users' CAD workflows
- Help other engineers write testable code and durable tests to go with every feature

## WHAT YOU BRING

- 3+ years building and maintaining automated test suites for production web applications with Playwright, Cypress, WebdriverIO, or similar
- Proficiency in TypeScript or JavaScript, and comfort reading and changing application code
- Experience building or substantially evolving an E2E test framework: fixtures, test data, isolation, parallel execution, and flakiness control
- Experience integrating tests into CI and keeping pipelines fast and reliable
- Interest in AI-assisted development and using agents to improve software quality
- Experience with performance regression tracking
- Experience testing CAD, 3D, geospatial, mapping, high performance editor, or gaming products

## ABOUT MACH9

Mach9 is transforming civil infrastructure design with AI-powered geospatial tools. Our platform accelerates the creation of engineering deliverables from raw data, cutting manual drafting time by 96×. Trusted by global leaders in engineering and construction, we're backed by Y Combinator, Quiet Capital, and top founders and executives from Cruise, Autodesk, Adobe, and DoorDash.

We believe the needs of a startup benefit from an in-person culture. The team works from our office in SoMa five days a week, with flexibility when needed. Visa sponsorship is available for this role.

## About Mach9

## Company Overview
- **One-liner**: Mach9 builds AI-native CAD software that automatically transforms LiDAR point clouds into engineering-grade 3D maps, accelerating infrastructure design and surveying workflows.
- **Entity Type**: Private (Seed stage)
- **Headquarters**: San Francisco, California, USA
- **Founded**: 2021
- **Founders**: Alexander Baikovitz (CEO), Zachary Sussman (CTO), Haowen Shi, Michael M. – four researchers from Carnegie Mellon University's Robotics Institute.

## Core Business
- **Primary industries**: Civil infrastructure, surveying & geospatial services, transportation, telecom, utilities, architecture/engineering/construction (AEC).
- **Target customers**: B2B. Enterprise clients include top engineering firms (Langan, Olsson, Woolpert, HDR, Michael Baker International), major state Departments of Transportation (DOTs), and utility companies.
- **Mission/purpose**: "Accelerate how teams model and understand the world" – providing the fastest, most accurate automated feature-extraction technology for infrastructure projects.

## Products & Services
- **Digital Surveyor (DS2)**: AI-native, web-based CAD platform for automated feature extraction from LiDAR point clouds. Offers AI-assisted extraction (curbs, pavement edges, guardrails, utility poles), manual tools, and direct export to AutoCAD, MicroStation, and ESRI. Data-agnostic ingest pipeline supports scanners from RIEGL, Trimble, Leica, NavVis. Type: SaaS.

## Market Standing
- **Valuation**: Not publicly disclosed.
- **Key Metric**: Total Funding – **USD $14,425,000** (as of early 2026).
- **Notable Investors/Partners**: Y Combinator (Summer 2021 batch), Quiet Capital (led $12M Seed round, Nov 2024), Tiger Global Management (led $2.3M Seed round, Dec 2021), and top executives from Cruise, Autodesk, Adobe, and DoorDash as advisors/investors.
- **Growth Signals**: Headcount of 30 employees (LinkedIn, Apr 2026) with +32.1% yearly growth; monthly job posting growth +66.7% year-over-year; trusted by leading engineering firms and state DOTs; launched Digital Surveyor 2 in March 2026; featured in Geo Week News and YC blog.

## Competitive Advantages
- **AI-native CAD workflow**: Unlike traditional manual drafting, DS2's AI "drafts with you" – learning from user edits to improve suggestions in real time, cutting manual drafting time by up to 96×.
- **Field-to-finish in one environment**: No need to switch between preprocessing, extraction, and CAD tools – all done in a single web-based platform.
- **Strong research roots**: Built on decades of research from Carnegie Mellon University's Robotics Institute, giving a deep technical moat in computer vision and geospatial ML.
- **Designed for surveyors**: Intuitive UI that lets domain experts (not just CAD specialists) be productive on day one.

## Strategic Focus
- **Scale GTM and engineering**: Active hiring across sales (Account Executive, Founding Marketer), engineering (ML Infrastructure Engineer, Perception Software Engineer, Head of Product Engineering), and operations (Solutions Consultant, QA Survey Technician).
- **Expand into new verticals**: Targeting electric/telecom utilities, data centers, and broader infrastructure beyond transportation.
- **Product evolution**: Continuously improving AI accuracy and automation, with a focus on trust and user control (as highlighted in the DS2 launch).

## Why Work Here
- **Culture**: Fast-paced, customer-obsessed, engineering-first environment. Values: "work fast, iterate with customer feedback, never compromise on excellence."
- **Remote/Hybrid Policy**: HQ in San Francisco; some roles are "Remote / Remote (US)" per YC job listings. Likely hybrid with in-office presence for SF-based roles.
- **Perks & Benefits**: Health, vision, dental insurance; paid parental leave; flexible time off; equity package for all full-time employees; company 401(k); relocation assistance; catered lunches & paid dinner; company & team events; dog-friendly office.
- **Engineering culture**: Deep technical challenges at the intersection of AI, geospatial, computer graphics, and infrastructure. Opportunity to work on hard problems that "unlock billions in value for customers."

## Sources
1. [mach9.ai/careers](https://mach9.ai/careers)
2. [mach9.ai](https://www.mach9.ai/)
3. [mach9.ai/about](https://www.mach9.ai/about)
4. [ycombinator.com/companies/mach9](https://www.ycombinator.com/companies/mach9)
5. [linkedin.com/company/mach9geo](https://www.linkedin.com/company/mach9geo)

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