Senior SDET: AI-Powered Testing Platform Engineer

MaintainX; Toronto; On-site; CAD 90,000 - 140,000; Full time

Benefits offered by this job

Annual bonus

Equity

Job summary

MaintainX is seeking a Senior SDET to build the shared testing infrastructure, AI-assisted tooling, and the quality platform used across engineering teams. You will shape testing standards and enable faster, more reliable releases.

You will collaborate with product engineering, Quality Advocates, and SRE to elevate engineering quality, reduce flaky tests, and drive adoption of AI-powered testing tools. This role emphasizes end-to-end system ownership and mentoring within the platform team.

Qualifications

• Hands-on experience building production-grade test automation frameworks using Playwright, Selenium, or similar technologies.
• Experience integrating automated testing into CI/CD pipelines and diagnosing flaky or failing test suites.
• Experience building or maintaining shared developer tooling, testing infrastructure, or engineering platforms.

Responsibilities

• Build and evolve MaintainX's shared quality platform, test automation frameworks, and developer tooling.
• Design and develop AI-assisted test authoring infrastructure that significantly reduces test creation time while maintaining high quality.
• Own CI integration standards and improve build reliability across engineering teams.
• Design test harnesses for AI-powered product capabilities, including health checks, graceful degradation, quota monitoring, and adversarial testing.
• Identify and eliminate systemic test debt and flaky tests before they impact engineering teams.
• Build shared testing utilities and frameworks adopted across the engineering organization.
• Partner with Quality Advocates, product engineering teams, and SRE to continuously improve testing strategy and platform reliability.
• Evaluate emerging AI testing tools and drive adoption where they create measurable engineering impact.

Job description

MaintainX is seeking a Senior SDET to build the shared testing infrastructure, AI-assisted tooling, and the quality platform used across engineering teams. You will shape testing standards and enable faster, more reliable releases.

You will collaborate with product engineering, Quality Advocates, and SRE to elevate engineering quality, reduce flaky tests, and drive adoption of AI-powered testing tools. This role emphasizes end-to-end system ownership and mentoring within the platform team.