Senior Android Engineer - Platform

<p>Wallapop is a Barcelona based scale-up driven by the purpose to empower people to embrace a more conscious and human way of consumption. We believe in a world where collaborative economy is mainstream. This is what drives us. <span style="color: rgba(0, 0, 0, 0.9); font-family: -apple-system, system-ui, 'system-ui', 'Segoe UI', Roboto, 'Helvetica Neue', 'Fira Sans', Ubuntu, Oxygen, 'Oxygen Sans', Cantarell, 'Droid Sans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Lucida Grande', Helvetica, Arial, sans-serif; font-size: 14px; font-style: normal; font-weight: 400; letter-spacing: normal; text-align: start; word-spacing: 0px; white-space: normal; display: inline !important; float: none;">💫</span></p> <p>Wallapop operates in Spain, Italy and Portugal, offering a catalogue of several hundreds of millions of products and services. Powered by technical innovation and continuous improvement, we bring together the scale & trust of classifieds with the marketplace’s convenience & reach. <span style="color: rgba(0, 0, 0, 0.9); font-family: -apple-system, system-ui, 'system-ui', 'Segoe UI', Roboto, 'Helvetica Neue', 'Fira Sans', Ubuntu, Oxygen, 'Oxygen Sans', Cantarell, 'Droid Sans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Lucida Grande', Helvetica, Arial, sans-serif; font-size: 14px; font-style: normal; font-weight: 400; letter-spacing: normal; text-align: start; word-spacing: 0px; white-space: normal; display: inline !important; float: none;">🌱 </span>Our mission is to enable a connected trade ecosystem, making 2nd-hand the norm through smart use of technology.</p> <p> </p> <p><strong data-redactor-tag="strong">The Challenge <span style="color: rgba(0, 0, 0, 0.9); font-family: -apple-system, system-ui, 'system-ui', 'Segoe UI', Roboto, 'Helvetica Neue', 'Fira Sans', Ubuntu, Oxygen, 'Oxygen Sans', Cantarell, 'Droid Sans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Lucida Grande', Helvetica, Arial, sans-serif; font-size: 14px; font-style: normal; font-weight: 400; letter-spacing: normal; text-align: start; word-spacing: 0px; white-space: normal; display: inline !important; float: none;">🧩</span></strong></p> <p>You will join the <strong>Android Platform Team</strong>, the engine room that enables our mobile engineers to ship features to millions of users with speed and confidence. In a 10+ year-old codebase with 50+ modules, your mission is to eliminate friction and build the foundation of our mobile future.</p> <p><strong>What you will find:</strong></p> <ul> <li><strong>Developer Experience (DevEx) at Scale:</strong> You won’t just build features; you will build the tools, CI/CD pipelines, and architectures that other engineers use daily.</li> <li><strong>Deep Tooling & Build Systems:</strong> We manage a complex modular environment where <strong>Gradle</strong> and <strong>CI/CD automation</strong> are at the heart of everything we do.</li> <li><strong>System-Level Thinking:</strong> From optimizing build time to managing our <strong>Dagger/Anvil</strong> DI graph, you’ll tackle challenges that impact the entire Android Chapter.</li> <li><strong>Data-Driven Infrastructure:</strong> We don't guess; we measure. You will use metrics to identify bottlenecks in the development lifecycle and prioritize