QA Analyst (Part-Time) – Manual + Playwright UK PropTech SaaS Start-up | Fully Remote

The Sales Centre co; Polska; Hybrid; PLN 70,000 - 110,000; Full time

Job summary

The Sales Centre co is seeking a meticulous QA tester to join a fast-moving SaaS team. You will own exploratory and regression testing, maintain end-to-end Playwright tests in TypeScript, and report clear bugs with steps and evidence.

You’ll verify migrations and ensure data separation across customers, while keeping test docs current. You’ll work closely with founders and a senior engineer, focusing on testing before customers see features and managing release quality across browsers and mobile

Qualifications

• 3+ years testing web SaaS products.
• Experience as main or sole tester.
• Risk-based test planning with explanations for what to test first.
• Hands-on exploratory and regression testing with test cases in lightweight tools.
• Proficiency with Playwright in TypeScript; Cypress experience is a plus.
• API testing with Postman or Playwright’s request API.
• SQL to verify data in Postgres after actions.
• Ability to read GitHub Actions CI runs and distinguish flaky tests.
• Clear bug reports in GitHub Issues, Linear or Jira.
• Strong written English in documentation and reports.

Responsibilities

• Exploratory testing of features across browsers and mobile.
• Maintain release checklist and regression run for every release.
• Maintain Playwright end-to-end tests and add cases for new bugs.
• Create clear bug reports with steps, screenshots, and severity; verify fixes.
• Test money paths: Stripe subscriptions, credits, and financial calculators.
• Ensure data separation between customers.
• Test GoHighLevel migration to ensure data arrives complete and correct.
• Keep test cases and known-issues documentation up to date.

Skills

Exploratory testing

Regression testing

Risk-based planning

Bug reporting

English writing

Tools

Playwright in TypeScript

Cypress

Postman

GitHub Actions

SQL

Jira

TestRail

Qase

Notion

Job description

Salary: TBC

The role

You’ll test everything the team builds before it reaches customers. Two people build and both ship every week: a senior engineer who owns the foundations, and a co-founder who builds screens using Claude Code. You’ll check both of them.

You’ll own the release checklist, the regression run, bug reports and fix verification. You’ll test by hand first and keep the automated end-to-end tests running. You’ll report to the founders rather than the engineer, so the person who wrote the code doesn’t decide whether a bug matters. Your first big job is testing the migration of 60 customers from GoHighLevel onto the new platform.

What you’ll own

• Exploratory testing of every feature before it goes live, across the main browsers and on mobile
• The release checklist and regression run on every release
• Maintaining the Playwright end-to-end tests: updating them when screens change and adding cases for bugs you find
• Clear bug reports with steps, screenshots and severity, and verifying fixes once shipped
• Testing the money paths every time: Stripe subscriptions, credits and financial calculators
• Checking data separation between customers (one customer must never see another’s data)
• Testing the GoHighLevel migration so every customer’s data arrives complete and correct
• Keeping test cases and known-issues documentation up to date

What you’ll need

• 3+ years testing web SaaS products, including at least one role where you were the main or only tester
• Risk-based test planning: you decide what to test first when there isn’t time for everything, and can explain why
• Hands-on exploratory and regression testing, with test cases kept in a lightweight tool (TestRail, Qase, Notion or a spreadsheet)
• Working-level Playwright in TypeScript: run the suite, read a failure and trace, fix a broken locator, add a case (Cypress experience transfers)
• API testing with Postman, Bruno or Playwright’s request API, including checking error handling and verifying webhooks
• Read-level SQL to check what landed in Postgres after an action
• Ability to read a GitHub Actions CI run and tell a flaky test from a real failure
• Clear, reproducible bug reports in GitHub Issues, Linear or Jira
• Clear written English, since most of the job is written

Nice to have

• Testing Stripe billing end to end in test mode (subscriptions, failed payments, webhooks, proration)
• Validating data migrations (record counts, field mapping, reconciliation)
• Using AI tools (Claude, Cursor, Playwright MCP) to draft test cases and automation, then checking the result
• Multi-tenant and permissions testing
• Accessibility (WCAG 2.2), mobile browser testing and visual regression tools
• GoHighLevel experience

No property knowledge is needed, as the domain will be taught. You also won’t need to build test frameworks from scratch or do performance or security testing.

You’ll thrive here if you are

Pedantic in a good way: you notice the thing that’s slightly off and chase it down. You ask “what if the customer does this instead?” before the customer does, and you test the whole job a customer came to do, start to finish. You plan your own hours around what’s shipping that week, you report what you found even when the engineer disagrees, and you keep process light, so “not a bug” is an answer you can accept and move on from.

This probably isn’t for you if

you’re a purely manual tester with no exposure to Playwright or Cypress, API testing or SQL; you’d rather spend your hours building a framework than testing the product; you need a test lead to assign you tickets; or you can only work full-time or fixed daily hours.