Middle Manual QA Engineer (Mobile)

In this role, you will
Own features end to end: review PRDs, design test coverage and publish feature documentation for the whole QA team Perform functional testing of new features as well as smoke, sanity and regression testing of mobile apps on real devices Test the backend manually via REST APIs across multiple services and validate client–backend integrations Validate business logic, pricing, feature flags and user data at the database level in MongoDB Analyze client–server traffic with proxy tools to find whether a bug lives on the client or the backend Test in-app purchases, attribution, personalization flows and A/B experiments that directly affect revenue Validate analytics events and tracking so that product decisions rest on reliable data Set up test conditions via the admin panel and JSON configs, including shared logic across several internal brands Create and maintain test documentation: test cases, checklists, bug reports and test reports Use and grow our AI-based toolset for generating test cases, checklists and PRD analysis Work within Scrum and continuously improve the speed and quality of testing

It’s all about you
2+ years of experience in manual testing, including backend testing with API tools and databases Hands-on experience testing iOS/Android apps on real devices Experience with proxy debugging tools: Charles, Proxyman or Fiddler Strong knowledge of test design techniques and requirements analysis Experience testing in-app purchases Experience setting up test conditions via JSON configs or admin panels Experience with test management systems such as Qase, TestRail or similar Experience using Claude or other AI tools for testing and creating test documentation Experience working in fast release cycles English at B1 level or higher Structured thinking, eagerness to learn and clear communication Result-oriented mindset, team spirit and flexibility

Would be a plus
Experience with MongoDB Compass: writing queries, filtering and validating data Analytics testing: validating events and tracking parameters A/B testing: test groups, feature flags, experiment configs Marketing testing: attribution, marketing links, personalized flows Localization testing, including multi-language and RTL Experience with TestFlight: installing builds and reading device logs

What we offer
Care and support: 20 paid days off, 15 days off due to sickness, and 6 additional days off for family events Up to 10 additional days off for public holidays 100% medical insurance coverage Sports and equipment reimbursement Team building events, corporate gifts, and stylish merch Financial and legal support Position retention and support for those who join the Armed Forces of Ukraine Participation in social initiatives supporting Ukraine Comfortable environment: Cooperate from our Kyiv hub or in a remote cooperation format with flexible hours of business activity Modern equipment or depreciation of your own tools Investment in your future: Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche 70% of our heads and leads have grown into their roles here – so can you! Performance-oriented reviews and Individual Development Plans (IDPs) Reimbursement for professional courses and English classes Corporate library, book club, and knowledge-sharing events AI is an integral part of our work culture. We invest in modern AI tools, equip our teams with the skills to use them effectively, and foster an environment where technology helps people achieve better results faster

Hiring process
Intro call Technical interview Final interview Reference check Offer P.S. Noticed a perfect match for your friend? We accept recommendations for all vacancies. If you are ready to refer your candidate, you can do it now: Click Here!