Middle Test Engineer – Mobile iOS, Android

Sigma Software Group

Strong Middle Test Engineer ensuring quality mobile experiences across iOS and Android platforms at Sigma Software. Collaborating closely with teams and contributing to AI-driven projects.

Posted 4/16/2026full-timeRemote • 🇵🇱 PolandMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

AndroidiOS

About the role

Key responsibilities & impact

Plan, design, and execute comprehensive test strategies for mobile applications on iOS and Android platforms
Collaborate closely with developers, product managers, and designers to ensure high-quality deliverables
Create and maintain detailed test documentation, including test cases, checklists, and bug reports
Perform various testing types: functional, regression, smoke, sanity, exploratory, performance, compatibility, localization, and API testing
Collect and analyze logs to diagnose issues across diverse devices and OS versions
Support and run existing mobile automation tests; contribute to automation framework improvements
Participate in Agile sprints, managing priorities and deadlines effectively
Apply critical thinking to identify edge cases and ensure comprehensive test coverage

Requirements

What you’ll need

4+ years of QA experience, with strong focus on mobile testing (iOS & Android)
Deep understanding of mobile ecosystems, OS versions, device fragmentation, and app architectures
Proficiency in testing processes and STLC
Experience with API testing and data formats (YAML, JSON)
Tools: Jira, Confluence, Figma, Fiddler/Postman, DB IDE, VS Code
Basic AI knowledge with willingness to grow in this area
Strong communication skills and ability to work with cross-functional teams
Self-driven, capable of independently formulating test strategies
At least an Upper-Intermediate level of English.

Benefits

Comp & perks

Professional growth opportunities
Supportive team environment
Chance to work on impactful projects

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

mobile testingAPI testingtest strategiestest documentationfunctional testingregression testingperformance testinglocalization testingexploratory testingSTLC

Soft Skills

communication skillscritical thinkingself-drivencollaborationtime management