Senior Manual Test Engineer

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Sigma Software Group

πŸ“Remote - Poland

Summary

Join our team as a Middle or Senior Test Engineer and help build exceptional products for our clients. You will perform manual testing of web UI, APIs, and data, write and maintain test documentation, and participate in grooming sessions. The role requires 5+ years of experience testing large web applications and hands-on manual QA experience. Strong SQL skills, API testing (GraphQL) experience, and advanced knowledge of testing techniques are essential. The ability to work independently in a remote team and under time pressure is also required. You will have the opportunity to initiate changes and improve the existing solution.

Requirements

  • 5+ years of experience testing large and complex web applications
  • 5+ years of hands-on experience in manual QA
  • Experience in API testing (GraphQL)
  • Advanced knowledge of testing techniques and methodologies
  • Strong SQL skills – able to confidently write complex queries for testing and data validation
  • Ability to review code changes (PRs) and understanding testing impact
  • Ability to perform API checks to validate backend behavior (not the core focus)
  • Solid experience in writing clear test documentations
  • Strong experience in test planning and estimation
  • Upper-Intermediate level of spoken and written English
  • Ability to work independently in a remote team and under time pressure
  • Availability to work extended hours on a bi-weekly basis

Responsibilities

  • Perform manual testing of web UI, APIs, and data
  • Write and maintain test documentation
  • Participate in grooming sessions and work on specifications with the Product Manager

Preferred Qualifications

  • Strong analytical skills to troubleshoot issues with different teams, identify root cause, and find effective solutions
  • Attention to detail (from data to pixels)
  • Proactive approach to continuously improve and optimize your work and processes

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