Senior QA Engineer / QA Lead

September 23, 2026

Remote (within country)

Senior

London, UK

Description

A company building a headless commerce platform for physical retail is hiring a Senior QA Engineer to design and automate the testing of its platform features. The role sits inside a delivery team, reports to the Head of Quality Engineering and treats automation as the default across API and interface level tests inside existing frameworks. Responsibilities also cover exploratory testing, ownership of test data and environment setup, and non-functional checks on performance, accessibility, security and resilience. The employer runs as a remote-first team serving some of the world's largest retailers and is replacing a legacy store system for a major store network.

Responsibilities

Design the test cases, scenarios and scripts for your feature area within the criteria and standards set by the quality engineering team
Build and maintain automated tests at API and interface level inside existing frameworks and extend that coverage as the product grows
Keep regression coverage for your area current as the product changes, inside the suite owned by the Senior Test Automation Engineer
Take part in refinement, design and specification reviews and challenge acceptance criteria that cannot be tested before development starts
Run your tests in the pipeline and read back reports, traces and logs
Diagnose each failure to its cause and establish whether it is the product, the test or the environment before raising it
Raise defects an engineer can act on immediately and see them through triage, fix and re-test
Manage the test data and environment conditions your tests depend on so the same test gives the same answer every run
Carry out exploratory testing around your area to find what scripted coverage misses and record what was covered
Contribute to non-functional testing on your area: performance, accessibility, security and resilience
Report on what is covered, what is not, how defects are trending and what risk is left, clearly enough to support a release decision
Support QA engineers earlier in their careers by example, by review and by helping them solve a problem rather than solving it for them

Requirements

4+ years in software QA, including at least two years writing and maintaining automated tests
Fluency in formal test design techniques such as equivalence partitioning, boundary analysis, state transition and decision tables
Understanding of what belongs at each level of the test pyramid and why a suite that leans on end-to-end tests decays
Hands-on building and maintaining automated tests in a framework such as Playwright, Cypress or Selenium, written to stay reliable as the product changes
Experience working in a shared repository with test code branched, reviewed and merged like any other code
Experience hunting a flaky test to its cause and fixing it, with a specific example of what made it deterministic
API and service level testing with tools such as Postman, REST Assured or equivalent
Deriving test cases from an interface specification and stubbing or mocking a dependency you do not control
Ability to read application code well enough to see what a test actually covers and where a bug is likely to be
Diagnosing a CI/CD failure to its source using logs, traces and dashboards in Datadog, Splunk, Grafana or equivalent
Ownership of the test data and environment setup a suite depends on, with repeatable rather than lucky runs
Running performance, accessibility and security tests with guidance from a senior and explaining what the results mean
Experience pushing back on an acceptance criterion that could not be tested as written before development started
Testing for data and transaction integrity: arithmetic and rounding, idempotency, duplicate submission, partial failure and one-side success
Testing enterprise software deployed to a major public cloud inside an agile, Scrum-based SDLC and STLC
Experience testing software that runs in physical locations where a device may be offline or intermittently connected
Automation experience in more than one framework, such as Playwright, Cypress, Selenium or an equivalent
Behaviour-driven testing with Cucumber, SpecFlow or similar, plus test management tooling such as Qase, TestRail, Xray or Zephyr
Performance and load testing with tools such as k6, JMeter, Gatling or Artillery
Accessibility testing against WCAG with tooling such as axe
Using AI in testing to generate cases, expand coverage or triage failures and explaining what it improved or broke
Helping a less experienced colleague get materially better and being able to say what changed for them
ISTQB or an equivalent testing qualification

Conditions

Remote-first team with employees working across the globe
Position located in London, England, UK
Applicants must have current, ongoing right to work in the UK
The employer is not a licensed visa sponsor and cannot sponsor a Skilled Worker visa or any other employment visa
Evidence of right to work will be required prior to any offer of employment
The employer is an equal opportunity employer
CVs from agencies, headhunters or other suppliers without a signed formal agreement are not accepted

PlaywrightCypressSeleniumPostmanREST AssuredDatadogSplunkGrafanaCucumberSpecFlowQaseTestRailXrayZephyrk6JMeterGatlingArtilleryWCAGaxeISTQBCI/CDScrumretail commerce softwareМенторство и поддержка младших QA-инженеровКритическое чтение acceptance criteria и отказ от нетестируемых формулировокЧестная отчётность о покрытии и остаточном риске

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