Senior QA Engineer, Agent Security

Runlayer

$120K — $140K *
US-AnywhereRemote in United States
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Senior-level QA automation or test infrastructure experience
  • Proficient in Python and system scripting (Bash, PowerShell)
  • Hands-on software testing across macOS, Windows, and Linux
  • Familiar with endpoint management and MDM
  • Knowledge of integration, end-to-end, and stateful testing
  • Ability to differentiate product defects from infrastructure issues
  • Experience in building reliable CI-driven testing systems

Responsibilities

  • Own quality and release testing for Runlayer Endpoint
  • Build and maintain a physical and virtual device lab
  • Design a scalable test strategy across various environments
  • Automate critical workflows including installation and configuration
  • Validate software deployments via enterprise device-management platforms
  • Develop tooling for enhanced test coverage and failure analysis
  • Collaborate with engineers to improve product diagnostics

Benefits

  • Competitive salary and equity package
  • Paid time off including vacation and parental leave
  • Professional development budget for courses and certifications
  • Choice of top-tier work equipment
  • Comprehensive health, dental, and vision benefits
  • Opportunities for direct customer interaction
Full Job Description


About the Role

You'll own quality and testability for Runlayer Endpoint across macOS, Windows, Linux, enterprise device-management platforms, and AI clients.

This is a senior, hands-on engineering role combining exploratory testing, release qualification, and test-infrastructure development. You'll build scalable, agent-driven testing systems for a complex cross-platform product and help ensure every release is reliable in real enterprise environments.

What You'll Do
  • Own release testing and quality for Runlayer Endpoint
  • Build and operate a physical and virtual device lab
  • Design a scalable test strategy across platforms, configurations, clients, and product states
  • Automate installation, enrollment, configuration, upgrade, rollback, and removal flows
  • Test deployments through enterprise device-management platforms
  • Validate integrations with leading AI coding clients
  • Build agent-driven tooling that expands coverage, gathers evidence, and accelerates failure analysis
  • Integrate automated quality signals into CI and release workflows
  • Reproduce customer issues and turn confirmed incidents into permanent regression tests
  • Partner with engineers to improve product diagnostics, observability, and testability
  • Define testability and coverage standards for new platforms, clients, and features


What We're Looking For
  • Senior-level experience owning QA automation or test infrastructure
  • Strong engineering skills in Python and system scripting such as Bash and PowerShell
  • Hands-on experience testing software across macOS, Windows, and Linux
  • Experience with endpoint management, MDM, device labs, or comparable fleet orchestration
  • Experience testing native installation, upgrades, background services, permissions, credentials, and OS configuration
  • Strong knowledge of integration, end-to-end, stateful, and combinatorial testing
  • Ability to distinguish product defects from infrastructure failures and flaky tests
  • Experience building reliable CI-driven systems with useful diagnostics and test artifacts
  • Clear technical judgment and excellent bug reporting


Bonus Qualifications
  • Experience with Intune, Jamf Pro, Kandji, SimpleMDM, Mosyle, or Workspace ONE
  • Experience testing endpoint-security or fleet-management products
  • Familiarity with MCP and AI coding clients
  • Experience building testing tools for AI agents
  • Experience with native packaging and signing on macOS, Windows, or Linux
  • Experience with fault injection, change-impact analysis, or combinatorial test generation


What We Offer

We provide a competitive package designed to attract and retain top talent who can work effectively with enterprise customers.
  • Competitive salary and equity - compensation that reflects your expertise and customer-facing responsibilities.
  • Paid time off - paid vacation, paid sick leave, and paid parental leave.
  • Professional development - budget for conferences, courses, and certifications in AI, enterprise software, and customer success.
  • Top-tier equipment - your choice of laptop and accessories to create your ideal work environment.
  • Health benefits - comprehensive health, dental, and vision coverage.
  • Customer interaction opportunities - work directly with innovative companies and see the immediate impact of your work.


Not quite the right fit? Reach out to with details about your experience and interests.

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