Senior iOS Developer

<p><strong>Appodeal</strong> is a dynamic US-based product company with a truly global presence.</p> <p>We have offices in <strong>Warsaw, Barcelona and Virginia </strong>along with remote team members located around the world.</p> <p>Our company thrives on diversity, collaboration, and innovation, making us a leader in the mobile app monetization space.</p> <p><strong>Why Appodeal?</strong></p> <p>At Appodeal, we’re more than just a company—we’re a team united by a common mission: <strong>to help every person discover and grow their talents!</strong></p> <p>We take pride in our cutting-edge product and our internationally dispersed team of talented professionals.</p> <p>Here’s what we value, and what we hope you do too:</p> <ul> <li><strong>Continuous Learning and Growth:</strong> We are passionate about learning, growing personally, and building rewarding careers.</li> <li><strong>Making an Impact:</strong> We are committed to building a history-defining company that leaves a lasting impact on the mobile app industry.</li> <li><strong>Solving Exciting Challenges:</strong> We tackle complex problems every day, supported by a team of world-class professionals and mentors.</li> <li><strong>Enjoying the Journey:</strong> We believe in having fun while working toward our goals.</li> </ul>The team is looking for a<strong> Senior iOS Developer </strong>to make it even stronger.<br/><strong><br/>iOS Development:</strong> <ul> <li>5+ years of professional iOS development experience;</li> <li>3+ years of hands-on Swift experience in production environments;</li> <li>Strong understanding of iOS internals (runtime, memory management, threading, rendering pipeline);</li> <li>Experience building and maintaining production-ready SDKs or frameworks (CocoaPods, SPM, xcframeworks);</li> <li>Proficiency with modularization, build systems, versioning, symbolication, and obfuscation tools;</li> <li>Ability to optimize startup time, memory usage, CPU load, and networking performance;</li> <li>Hands-on experience debugging crashes, concurrency issues, deadlocks, and performance bottlenecks.</li> </ul> <strong>Ad Tech &amp; Integrations:</strong> <ul> <li>Production experience integrating major ad SDKs (AdMob, AppLovin MAX, IronSource, UnityAds, Vungle, etc.);</li> <li>Understanding of waterfall mediation, bidding flows, and programmatic advertising fundamentals;</li> <li>Experience developing adapters/wrappers for multiple third-party ad networks;</li> <li>Familiarity with ATT, SKAdNetwork, IDFA/IDFV, and privacy compliance (GDPR, COPPA, Apple policies);</li> <li>Understanding of install attribution flows and StoreKit APIs;</li> <li>Understanding of RTB concepts, event-driven flows, and real-time processing on-device.</li> </ul> <strong>Networking &amp; Concurrency:</strong> <ul> <li>Strong experience with URLSession, HTTP clients, caching, and task scheduling;</li> <li>Proficiency with concurrency patterns: GCD, OperationQueue, Swift Concurrency (async/await, actors);</li> <li>Understanding of client-side auctions, retries, timeouts, and fallback logic;</li> <li>Experience designing resilient offline/online behavior and event batching;</li> <li>Objective-C, runtime swizzling, or mix-language SDK design.</li> </ul> <strong>Testing &amp; Reliability:</strong> <ul> <li>Experience writing automated tests for SDKs (unit, integration, functional);</li> <li>Knowledge of CI/CD for iOS frameworks, build automation, release pipelines;</li> <li>Ability to debug multi-SDK conflicts, inspect traffic, and analyze symbolicated crash reports;</li> <li>Strong focus on stability, backward compatibility, and deterministic behavior across iOS versions.</li> </ul> <strong>Cross-Platform &amp; Tooling (Nice-to-Have):</strong> <ul> <li>Experience building Unity / Flutter / React Native bridges.</li> </ul><p>With an outstanding product and a mission that excites and inspires, Appodeal offers a unique opportunity to make an impact while being part of an amazing team.</p> <p><strong>Join us</strong> and help shape the future of mobile app success!</p>