The Role & Your Mission

We're looking for a Senior SDET to own the quality infrastructure across all of Weave's products. You'll design, build, and maintain the end-to-end test suite that gives the engineering team confidence to ship fast. This is a true engineering role and you'll treat the test suite as a product with its own architecture, reliability requirements, and users (your fellow engineers).

The bar is high: we want a suite that is fast, deterministic, and trusted. When tests pass, we deploy without hesitation. When they fail, engineers believe it. If you've built and maintained a flake-free E2E suite at scale and know exactly how hard that is, keep reading.

What You'll Own

Test Architecture & Infrastructure

• Design and build the end-to-end test architecture across all of Weave's products
• Own the full test pyramid strategy, determine what gets tested at which layer and why
• Build shared utilities, fixtures, and abstractions that make writing reliable tests easy for every engineer
• Architect test data management, environment provisioning, and isolation strategies that eliminate flakiness at the source

Suite Reliability & Performance

• Maintain a high-signal, flake-free suite, own flake detection, root cause analysis, and systematic elimination
• Optimize execution time so tests remain a fast feedback loop, not a bottleneck
• Build and maintain CI/CD integration so the suite runs on every PR and blocks merges when it should
• Monitor suite health with dashboards and alerting; treat reliability as a metric, not a feeling

Cross-Product Quality

• Partner with product engineering teams to ensure new features ship with comprehensive, maintainable coverage
• Define testing standards and best practices across the organization
• Identify gaps in coverage and prioritize them based on risk and customer impact

What You Bring

Engineering Fundamentals

• 5+ years of professional software engineering experience with a focus on quality, test infrastructure, or a combination of product engineering and test automation
• Proficient in TypeScript. You should be as comfortable in it as any frontend engineer on the team
• Proficient in at least one server-side language (Python preferred) for tooling, scripting, data seeding, and API-level testing
• You understand how web applications work end-to-end: browsers, networks, APIs, databases, auth flows, and you know where each layer can break

Playwright Expertise

• Expert-level Playwright knowledge; not just usage, but internals, quirks, and best patterns at scale
• Deep experience with auto-waiting, selector strategies, network interception, multi-context testing, and trace debugging
• You've built custom fixtures, reporters, and integrations and have strong opinions on how to structure a large Playwright suite for maintainability

AI-Augmented Test Engineering

• You actively use AI-powered development tools (Cursor, Claude, etc.) to accelerate test creation, maintenance, and debugging
• Ideal candidates have direct experience using AI to generate E2E tests from specs or user flows and have developed workflows to keep AI-generated tests at a high quality bar
• You have the fundamentals to know when a generated test is actually testing what it claims to