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OAK'S LAB

QA Engineer – Manual

OAK'S LAB

QA Engineer responsible for manual testing and ensuring product quality with effective test strategies in Prague. Collaborating with Product Managers and Engineers to streamline QA processes and workflows.

Posted 7/8/2026full-timePrague • CzechiaJuniorMid-LevelWebsite

Tech Stack

Tools & technologies
CypressTypeScript

About the role

Key responsibilities & impact
  • You’ll be responsible for implementing and maintaining the test strategy and test plans, and manually testing the product to ensure seamless e2e experiences.
  • Beyond testing stories, you will be responsible for the overall quality of the product and will ensure that the application functions flawlessly from the users' perspective.
  • Collaborating closely with our Tech Lead, you'll streamline workflows and help organize releases.
  • You'll be the decision-maker, giving the green light for each release.
  • You’ll collaborate with Engineers to clarify product functionalities and provide them with testing data.
  • You’ll be a partner to the Product Manager, gaining insights into the business and project scope to determine quality assurance priorities and to set effective testing strategies.
  • Support the Product Manager with the preparation of the product specification, user stories, business analysis, prioritization, and other project management activities to enhance the team’s velocity.
  • Work closely with the Product Manager and Tech Lead to define the test strategy, plan, scenarios, and cases, and collaborate on testing requirements and activities as a core part of the business rollout strategy.
  • Support the engineering team with product and business knowledge and testing data.
  • Actively participate in refinement ceremonies, providing estimations (from the QA side) and uncovering edge cases.
  • Drive the whole QA process and testing lifecycle.
  • Measure and report key quality metrics to the team and stakeholders.
  • Drive the product launch checklist documentation.

Requirements

What you’ll need
  • 2+ years of experience in manual testing of web applications
  • Experience with Postman or a similar tool for API testing
  • Highly self-organized, detail-oriented, reliable team player
  • Professional proficiency in English
  • Ability to clearly communicate and efficiently coordinate the team
  • Experience with creating test documentation (test strategy, test plan, test scenarios, and test cases)
  • Strong analytical thinking and ability to uncover edge cases
  • Experience with defining acceptance criteria
  • Ability to provide clear estimations of QA work
  • Experience working independently on a project, as the only QA, is a plus
  • Experience with test automation is a plus (Typescript, Playwright or Cypress)

Benefits

Comp & perks
  • This position is hybrid, so being located in Prague is essential
  • This is a long-term contract engagement
  • OAK'S LAB communication, including interview requests and job offers, are only sent from an '@oakslab.com' or '@oaks-lab.com' email address.
  • We will never ask for payment information or banking details via email, phone, or any other communication channel during the interview process.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
Manual TestingTest Strategy DevelopmentTest Plan CreationTest Scenario DevelopmentTest Case CreationAPI TestingAcceptance Criteria DefinitionQuality Metrics ReportingEstimation of QA WorkEdge Case Identification
Soft Skills
Detail-OrientedSelf-OrganizedReliable Team PlayerClear CommunicationEfficient Coordination