Senior QA Engineer
We develop a B2B SaaS product for mobile applications with subscriptions. By 2024, thousands of apps trusted our platform to process around $1 billion through our infrastructure.
We operate in a rapidly evolving sector, catering to a wide spectrum of clients, from mobile developers to companies of various sizes that create apps for Apple and Google. Our clients are located globally, with a focus on Europe, the USA, and Asia.
About the Product
Our product is a large-scale and comprehensive solution. It consists of several key components: a convenient dashboard, a multifunctional SDK, and an API. All these provide the necessary functionality for integrating subscriptions into applications. We process payments from Apple & Google Stores, provide deep analytical insights, integrate data for A/B testing, and create no-code solutions to improve user experience.
Key Responsibilities
Identify, document, and track bugs to ensure we are aware of them, remember them, and get them fixed, improving the reliability of the system
Reduce the number of bugs reaching production by implementing effective testing strategies
Establish and optimize QA processes and tools to enhance the overall quality and efficiency
Continuously improve testing processes and tools to keep up with industry standards
Collaborate with the team to understand requirements and ensure high-quality releases
Test and verify both backend and frontend parts of Qonversion parts
Develop and execute comprehensive test plans and test cases
Participate in code reviews to provide feedback from a testing perspective
Analyze test results and suggest improvements to the testing process
Who you are
Technical Expertise: Strong experience with both backend, API and frontend testing
Automation Skills: Proficiency in test automation tools and scripting languages
Databases: Experience working with MySQL, MongoDB, and ClickHouse databases
Analytical Mindset: Ability to analyze complex systems, identify edge cases, and ensure comprehensive test coverage
Problem-Solving Skills: Demonstrated ability to diagnose, and resolve issues efficiently
Collaboration: Excellent communication skills and the ability to work effectively with cross-functional teams
Attention to Detail: Keen eye for detail and a commitment to delivering high-quality results
Proactivity: High level of initiative and the ability to work independently
Experience: Previous experience in a QA role, preferably in a B2B and/or SaaS environment
Familiarity with continuous integration and continuous deployment (CI/CD) pipelines
Familiarity with message broker like RabbitMQ
Published on: 1/7/2026

Qonversion
The Mobile Payments Platform for Subscription Apps. Cross-platform subscription infrastructure, revenue analytics, No-Code Builder for paywalls & onboarding flows, refund management, engagement automation, and integrations all in one place to help you grow your app faster.
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