Software Engineer in Test

Zof AI, Inc.; San Francisco (CA); On-site; USD 140,000 - 180,000; Full time

Benefits offered by this job

MacBook Pro

Premium AI tools

Cursor Ultra

Claude Code Ultra

OpenAI Codex Max

Job summary

Zof AI, Inc. in San Francisco, CA is seeking a Software Engineer in Test to build robust test frameworks and scale QA automation for ambitious AI products.

You will design, implement, and maintain end-to-end testing strategies across unit, integration, and E2E layers in a fast-moving environment. Ideal candidates have hands-on experience with Playwright/Cypress/Selenium, Python/TypeScript/Java, and strong CI/CD practices.

Qualifications

• Experience writing automated tests for production software.
• Working knowledge of a browser automation framework (Playwright, Cypress, or Selenium).
• Ability to write clean code in Python, TypeScript, or Java.
• Understanding of CI pipelines and how tests gate a release.
• Clear written and verbal communication in a fast-moving environment.

Responsibilities

• Design and maintain end-to-end test frameworks in Playwright, Cypress, or Selenium.
• Build unit and integration coverage using pytest, Jest, and similar tooling.
• Eliminate flaky tests to keep the suite trustworthy.
• Own coverage strategy across unit, integration, and end-to-end layers.
• Wire suites into CI with gates that block defects before release.
• Reproduce reported bugs as tight, deterministic tests.
• Teach our agent fleets how a strong test engineer reasons.
• Partner with engineering and product to raise quality standards.

Skills

Test automation

SDET / QAE

CI/CD

Flaky test elimination

Test framework design

Tools

Playwright

Cypress

Selenium

pytest

Jest

Python

TypeScript

Java

Job description

Compensation

Competitive salary

Plus meaningful equity

Location, Contract, Level

San Francisco, CA
Full-time
Mid-level
On-site

Zof AI is hiring for this role in San Francisco, CA. This is a full-time opportunity for candidates who want to contribute directly to the development of ambitious AI products in a high-performance environment.

Must work with AI agents daily to write, maintain, and scale test coverage.

About This Role

Zof AI is seeking a Software Engineer in Test to bring real test-engineering craft to the agent fleets that find, reproduce, and remediate defects in customer codebases. This role owns the practice our product automates: framework design, flake elimination, coverage strategy, and CI gates that engineering teams actually trust. If you have worked as an SDET, Test Automation Engineer, Quality Engineer, or Software Engineer in Test, this is that discipline at Zof AI. The ideal candidate has built suites that held up against messy real codebases and wants to encode that judgment into agents doing the same work at scale.

Responsibilities

• Design and maintain end-to-end test frameworks in Playwright, Cypress, or Selenium.
• Build unit and integration coverage using pytest, Jest, and similar tooling.
• Hunt down and eliminate flaky tests so the suite stays trustworthy.
• Own coverage strategy across the unit, integration, and end-to-end layers.
• Wire suites into CI with gates that block real defects before release.
• Reproduce reported bugs as tight, deterministic failing tests.
• Teach our agent fleets how a strong test engineer reasons and works.
• Partner with engineering and product to raise the bar on what ships.

Requirements

• Experience writing automated tests for production software.
• Working knowledge of a browser automation framework such as Playwright, Cypress, or Selenium.
• Ability to write clean code in a language like Python, TypeScript, or Java.
• Understanding of CI pipelines and how tests gate a release.
• Instinct for the difference between a real failure and a flaky one.
• Comfort reading unfamiliar code well enough to test it.
• Clear written and verbal communication.
• Comfort operating in a fast-moving environment.

Nice to have

• Experience building test infrastructure, fixtures, or test data tooling.
• Experience testing APIs, mobile apps, or performance and load scenarios.
• Experience defining quality metrics and reporting them to engineering leadership.
• Experience with eval or benchmark harnesses for AI systems.

What we provide in San Francisco

• MacBook Pro
• Premium AI development tools
• Cursor Ultra
• Claude Code Ultra
• OpenAI Codex Max or equivalent advanced AI tooling
• Access to a high-performance AI product environment
• Close collaboration with leadership, engineering, and customers
• Opportunity to work in the San Francisco AI ecosystem
• Wellness and productivity support where applicable
• Competitive startup environment
• High ownership
• Direct product impact

Benefits may depend on role and final offer terms.

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