Senior SDET (Software Development Engineer in Test)

Fullscript

ahuntsic north, qc, Canada
Full-time
Posted June 07, 2026

Job Description

What You'll Do

Own the design, development, and maintenance of scalable automated test frameworks (Playwright, API, integration, end-to-end)

Build and operate reliable test infrastructure integrated into CI/CD pipelines

Drive test automation strategy, optimizing for coverage, speed, and signal quality

Identify systemic quality gaps and address them through tooling and engineering improvements

Partner with engineers to design systems for testability (e.g., observability, contracts, idempotency)

Write production-quality code for test systems, utilities, and supporting infrastructure

Improve developer experience by enabling fast, reliable feedback loops

Validate complex payment flows and external integrations (e.g., Stripe) through automation-first approaches

Lead root cause analysis for defects and implement systemic fixes to prevent recurrence

Define and enforce quality standards for high-reliabili...