Type of contract: B2B contract 

Salary range: 118-149 PLN net/h

What will you do

• Work on innovative, large-scale mobile products, taking full ownership of the quality strategy across the development lifecycle
• Design, build, and maintain scalable automation frameworks for mobile testing (UI and API)
• Define and implement testing architecture aligned with DevOps and CI/CD best practices
• Mentor and support junior QA engineers, promoting high testing and automation standards
• Actively optimize CI/CD pipelines to ensure fast, reliable, and scalable test feedback (e.g. parallel testing, shift-left testing)
• Evaluate, recommend, and implement new testing tools and technologies
• Define and oversee non-functional testing strategies, including performance, security, and usability testing
• Perform advanced data analysis using complex SQL queries to identify systemic quality issues
• Act as a quality leader within the Scrum team, collaborating closely with Product Owners on acceptance criteria and quality-by-design
• Manage and review test code using Git/Bitbucket, applying advanced branching and code review practices

Requirements

• Extensive experience (minimum 3+ years) in testing complex mobile applications across different platforms and scenarios
• Hands-on experience with cloud-based device farms (e.g. Sauce Labs, BrowserStack, AWS Device Farm)
• Advanced expertise in test automation, including building automation frameworks from scratch
• Strong knowledge of scripting/programming languages used in test automation
• Very good understanding of DevOps practices and CI/CD pipelines (e.g. Jenkins, Bitbucket Pipelines, GitLab CI)
• Experience with containerization tools such as Docker
• Excellent command of Git and repository management
• Advanced knowledge of functional and non-functional testing strategies
• Expert-level exploratory testing skills
• Proficiency in writing complex SQL queries (JOINs, procedures, in-depth data analysis)
• Strong communication skills, leadership mindset, and ability to mentor others
• Proactive problem-solving skills and strategic, holistic approach to quality

Nice to have

• Experience with performance testing tools such as JMeter or k6
• Experience testing applications in cloud environments (AWS, GCP, Azure)
• Industry certifications (e.g. ISTQB Advanced Level)
• Experience with automated mobile application testing frameworks

This possibility applies to work on a B2B basis.