Senior QA Engineer

<div class="content-intro"><p><strong>BidMachine Exchange</strong> – a fast-growing global programmatic exchange built for the future of in-app advertising.</p> <p>BidMachine operates with a strong US foundation and an international presence, with teams across Warsaw, Barcelona, Parkland (FL), and remote experts around the world.</p> <p>We combine deep AdTech expertise, proprietary technology, and a data-driven mindset to deliver transparency, performance, and efficiency in the mobile advertising ecosystem.<strong><br><br>Why BidMachine?<br></strong>At BidMachine, we are building more than an exchange — we are shaping the infrastructure that powers fair, efficient, and scalable in-app programmatic advertising.<br>Our mission is to create a high-performance marketplace where publishers maximize value and advertisers access premium inventory with full transparency and control.<br>We are proud of our technology, our ambitious vision, and our globally distributed team of talented professionals who continuously raise the bar in AdTech.</p> <p><strong>Here’s what we value, and what we hope you do too:</strong></p> <p><strong>Ownership &amp; Accountability</strong><strong><br></strong>We move fast, take responsibility, and think like builders. Every team member has a direct impact on product growth and market success.</p> <p><strong>Data-Informed Excellence</strong><strong><br></strong>We leverage data to make smarter decisions, optimize performance, and build scalable solutions that deliver measurable results.</p> <p><strong>Innovation &amp; Technical Depth</strong><strong><br></strong>We solve complex programmatic challenges with cutting-edge technology and a deep understanding of the ecosystem.</p> <p><strong>Global Collaboration</strong><strong><br></strong>We work across cultures, time zones, and disciplines — united by shared goals and high standards.</p> <p><strong>Ambition &amp; Impact</strong><strong><br></strong>We are here to build something significant — a best-in-class exchange that competes with the strongest players in the market.</p></div><p>The team is looking for a&nbsp;<strong>QA Engineer in Barcelona.<br><br></strong><strong>Responsibilities:</strong></p> <ul> <li>End-to-End Mobile Ad Testing: Conduct comprehensive testing of mobile ad formats (banner ads, interstitials, rewarded video ads, native ads) to ensure correct display, functionality, and user experience across multiple devices and OS versions.</li> <li>Ad Integration Validation: Verify the correct integration of ad SDKs in mobile apps, ensuring compliance with ad network specifications and proper ad rendering.</li> <li>Tracking and Analytics Verification: Test and validate that analytics and tracking events are correctly implemented, ensuring that ad performance data is accurately captured (e.g., impressions, clicks, conversions).</li> <li>Cross-Device and Platform Testing: Ensure that ads are rendered and perform consistently across various mobile devices, screen sizes, operating systems (iOS/Android), and environments.</li> <li>SDK Testing: Perform manual and automated testing of mobile SDKs used for ad integrations, ensuring they function properly and integrate well with mobile applications.</li> <li>Bug Reporting and Tracking: Document issues, inconsistencies, and bugs related to ad display, tracking, and interaction using issue-tracking tools (Jira, TestRail, etc.) and collaborate with the development team for timely resolution.</li> <li>Regression Testing: Conduct regular regression testing for ad-related features following SDK updates, new releases, or modifications in the ad-serving framework.</li> <li>Collaboration with Ad Operations: Work closely with the ad operations and product teams to understand campaign requirements and ensure proper ad functionality and tracking throughout the mobile app lifecycle.</li> </ul> <p><br><strong>Technology Stack:</strong></p> <ul> <li>Mobile Testing: Android, iOS, mobile app testing tools.</li> <li>Ad Testing: Testing of mobile ads (banner, interstitial, video ads), ad network integrations, debugging ad rendering and tracking.</li> <li>Analytics Testing: Event tracking validation, experience with mobile analytics platforms (Google Analytics, Firebase, Adjust, AppsFlyer).</li> <li>SDK Testing: Experience testing Software Development Kits (SDKs), integration testing, API testing, and verifying SDK behavior across different environments.</li> <li>API Testing: Postman, REST API testing, validating data exchange between systems.</li> <li>Bug Tracking and Test Management Tools: Jira, TestRail, or similar tools for defect tracking and test management.</li> <li>Agile Methodologies: Experience working in Agile/Scrum teams, participating in sprint planning and backlog grooming.</li> <li>Version Control: Git or other version control systems.</li> </ul> <p><br><strong>Qualifications:</strong></p> <ul> <li>3+ years of experience in software quality assurance, preferably in a gamedev, AdTech.</li> <li>Strong understanding of software development life cycle (SDLC) and testing methodologies.</li> <li>Test Automation experience is a <strong>huge</strong> plus.</li> <li>Excellent analytical and problem-solving skills.</li> <li>Strong attention to detail and ability to handle multiple tasks simultaneously.</li> <li>Ability to quickly adapt to changing business requirements and ability to multitask.</li> <li>Excellent communication and collaboration skills, with the ability to work effectively in a cross-functional team environment.</li> </ul><div class="content-conclusion"><p>With a powerful product, strong market positioning, and a team that strives for excellence, BidMachine offers a unique opportunity to grow, innovate, and make a tangible impact in the programmatic advertising space.</p> <p><strong>Build the future of mobile AdTech with us!</strong></p></div>