Quality Assurance Automation Engineer, Workflow Engine

About Paragon

Paragon is building the infrastructure layer that powers integrations for modern SaaS companies. We help teams ship and operate integrations faster so product teams can focus on their core product instead of integration complexity. Our platform runs mission-critical integrations in production for fast-growing startups and large enterprises.

About the Workflow Engine team

Paragon’s Workflow Engine gives customers a way to build, run, and manage complex workflows on top of their integrations. These workflows often involve triggers, branching logic, retries, asynchronous execution, third-party APIs, and failure handling across multiple systems.

Quality on this team is not just about checking UI flows. It means validating that workflows behave correctly end to end, including execution state, retry behavior, scheduling, error handling, and the product experience customers use to build and debug workflows.

We’re looking for a QA Automation Engineer who can raise the quality bar across this surface area through strong Playwright-based automation, backend and API validation, and a sharp eye for edge cases in complex systems.

What you’ll do

• Build and maintain automated test coverage for the Workflow Engine using Playwright

  Validate critical product flows end to end, from workflow creation and configuration through execution and debugging

  Test backend services, APIs, webhooks, and asynchronous workflow behavior in addition to UI flows

  Design coverage for complex scenarios including retries, branching logic, partial failures, race conditions, scheduling, and long-running execution

  Partner closely with engineers and product managers to improve testability, clarify acceptance criteria, and catch issues earlier in the development cycle

  Improve the quality of our CI signal by reducing flakiness, increasing reliability, and making failures easier to debug

  Build reusable fixtures, test data setup, helpers, and tooling that make automation easier to write and maintain

  Investigate product issues and test failures deeply to identify root cause and prevent recurring regressions

  Help define the quality strategy for one of the more complex parts of the Paragon platform

  What we’re looking for

  • Strong hands-on experience with Playwright and end-to-end automation for complex product flows

    Experience testing backend systems, APIs, and asynchronous or event-driven workflows

    Strong debugging skills across browser tests, APIs, logs, and distributed system behavior

    Ability to reason through stateful systems and edge cases like retries, timing issues, duplicate events, partial failures, and long-running jobs

    Experience building and maintaining stable automation in CI/CD environments

    Strong coding skills and comfort working in a modern engineering codebase

    Ability to work closely with engineers and act as a quality owner, not just a test executor

    Clear communication and sound product judgment around risk, coverage, and release quality

    Nice to have

    • Experience with TypeScript

      Experience testing workflow, orchestration, or automation products

      Experience testing integrations, webhooks, and third-party APIs

      Experience building reusable Playwright frameworks, fixtures, or internal testing tools

      Experience with observability tools and production debugging

      Experience with performance or reliability testing

      Why this role matters

      The Workflow Engine is one of the more complex parts of our product. It sits at the intersection of product UX, backend systems, integrations, and asynchronous execution. Small issues can turn into confusing customer experiences or hard-to-debug failures.

      This role is important because it helps us ship faster with more confidence. We want someone who can improve coverage on the paths that matter most, catch subtle regressions before they reach customers, and make quality a stronger part of how the team builds every day.

      What success looks like

      In the first few months, a strong hire will ramp up on the Workflow Engine architecture, understand the major failure modes, and start contributing meaningful automated coverage quickly. Over time, they will become a key quality owner for the team by improving end-to-end test coverage, increasing trust in CI, reducing flaky tests, and helping engineers ship changes to the Workflow Engine with confidence.

      If you want, I can turn this into a tighter final version in your usual JD style, with the same tone and formatting as the SRE one.