LeadSource Tech is looking for a
QA Engineer – Automation & Performance
who can take ownership of quality across browser extensions, SaaS products, web applications, APIs and custom software projects.
This isn't an automation-only role, nor is it a manual testing role with occasional automation.
We're looking for someone who understands
when to test manually, what should be automated, how different layers of an application interact, and how to validate a system under real-world load.
What You'll Work On
Own functional, regression, integration and exploratory testing across products and client projects
Design, develop and maintain
end-to-end automation test suites
Automate testing for
Chrome/browser extensions and web applications
Test extension UI, browser behaviour, background processes, permissions, storage and backend interactions
Perform
API and integration testing
Design and execute
load, performance and stress tests
Simulate concurrent usage and identify performance bottlenecks
Measure response times, throughput, failures and system behaviour under increasing load
Validate authentication, user states, data persistence and asynchronous workflows
Build and maintain regression suites for critical product journeys
Identify race conditions, edge cases and failures beyond standard happy-path scenarios
Perform exploratory/manual testing for current features and scenarios where automation isn't appropriate
Analyse failures and work closely with developers to identify root causes
Integrate automated tests into development and release workflows
Perform
regression and performance validation during platform and infrastructure migrations
, ensuring functionality, data integrity and system performance remain secure
Help establish and continuously improve QA practices across