Senior Front-End Developer

Posted 6 Days Ago
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Barcelona, Cataluña, ESP
In-Office
Senior level
AdTech
The Role
Lead iOS development for a React Native application, integrating native SDKs, privacy technologies, analytics, advertising, authentication, and deep linking. Build the CircleCI and fastlane release pipeline, manage App Store submissions, write native Swift or Objective-C modules, maintain cross-platform compatibility, and oversee Jest and mobile end-to-end testing. Collaborate with product and backend teams while reviewing code and sharing iOS expertise.
Summary Generated by Built In

Adwake is a tech-enabled services company powered by Entravision. We are a dynamic technology company building a high-availability offerwall platform that connects users with engaging opportunities. Our mission is to deliver seamless, high-quality experiences across web and mobile devices, and we’re looking for a Senior Frontend Developer to join our dynamic team.

As a Senior Frontend Developer, you will play a pivotal role in designing, developing, and maintaining our web and mobile applications. You’ll work closely with cross-functional teams, including product and backend engineers, to deliver responsive, performant, and visually appealing user interfaces. Your expertise in React and React Native will drive the creation of cutting-edge solutions that delight our users.

 What You’ll Do:
  • Lead the iOS build of our React Native app, working closely with product and backend.
  • Configure and integrate native SDKs on iOS: Firebase (messaging/APNs, analytics, App Check), AppsFlyer, AppLovin MAX, Google Sign-In, the Facebook SDK and Intercom.
  • Implement App Tracking Transparency, SKAdNetwork, privacy manifests, deep links and universal links.
  • Design iOS alternatives for features built on Android-only APIs, with product.
  • Write native Swift or Objective-C modules where React Native libraries fall short.
  • Build the iOS release pipeline in CircleCI with fastlane: code signing, TestFlight and App Store Connect.
  • Own App Store submissions and App Review, including the guidelines that apply to rewards and incentive apps.
  • Keep shared code platform-agnostic so Android and iOS stay in sync.
  • Maintain testing on both platforms with Jest and Maestro end-to-end tests.
  • Review code and share iOS knowledge with the team.
 What you need to have:
  • 5+ years of professional mobile or frontend experience, including 3+ years of React Native.
  • At least one React Native app shipped to the App Store and maintained in production.
  • Strong knowledge in TypeScript and JavaScript.
  • Hands-on iOS tooling: Xcode, CocoaPods, signing and provisioning, TestFlight, App Store Connect.
  • Experience integrating third-party native SDKs (attribution, ads, push, analytics) in React Native.
  • Working knowledge of Swift or Objective-C for native modules and debugging.
  • Solid understanding of App Store Review Guidelines, ATT and Apple’s privacy requirements.
  • Testing experience with Jest plus a mobile end-to-end framework (Maestro, Detox or similar).
  • Strong problem-solving skills and comfort in a fast-paced environment.
 

Nice-to-Have:

  • Experience with rewards, offerwall, gaming or ad-monetised apps and how they fare in App Review.
  • WebView-based hybrid apps (JS-to-native messaging, cookie and session handling).
  • Sign in with Apple.
  • React web experience (React Query, MUI), to help on the web app.
  • CI/CD for mobile (CircleCI, fastlane, Firebase App Distribution).
  • Google Cloud and Firebase.
  • Sentry or similar crash reporting.
 

Why Join Us?

  • Work on a high-impact, high-availability platform serving millions of users.
  • Collaborate with a talented and passionate team in a fast-paced, innovative environment.
  • Hybrid working model, with possibility of working remotely.
  • Opportunities for professional growth and hands-on experience with cutting-edge technologies.


 What We Offer

💻 Hybrid Work Model

🥘 Ticket Restaurant

🧘🏼‍♀️ Private Health Insurance

💪 Gym Membership

🍉 Office Snacks & Breakfast

🥳 Team Events

🌟 Referral Bonus


Please note that we do NOT provide VISA sponsorship. Candidates without a legal permit to work in Spain won't be eligible for the recruitment process.

Skills Required

  • 5+ years of professional mobile or frontend development experience
  • 3+ years of React Native experience
  • At least one React Native application shipped to the Apple App Store and maintained in production
  • Strong knowledge of TypeScript and JavaScript
  • Hands-on experience with Xcode, CocoaPods, code signing, provisioning, TestFlight, and App Store Connect
  • Experience integrating third-party native SDKs for attribution, advertising, push notifications, and analytics in React Native
  • Working knowledge of Swift or Objective-C for native modules and debugging
  • Understanding of App Store Review Guidelines, App Tracking Transparency, and Apple privacy requirements
  • Testing experience with Jest and a mobile end-to-end framework such as Maestro or Detox
  • Strong problem-solving skills and comfort working in a fast-paced environment
  • Experience with rewards, offerwall, gaming, or ad-monetized applications
  • Experience with WebView-based hybrid applications, JavaScript-to-native messaging, cookies, and session handling
  • Experience with Sign in with Apple
  • React web experience with React Query and MUI
  • Mobile CI/CD experience with CircleCI, fastlane, or Firebase App Distribution
  • Experience with Google Cloud and Firebase
  • Experience with Sentry or similar crash-reporting tools
  • Legal authorization to work in Spain without visa sponsorship
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The Company
HQ: Santa Monica, CA
161 Employees
Year Founded: 1996

What We Do

We are a leading global advertising, media, and ad-tech solutions company connecting brands to consumers by representing top platforms and publishers. Our services are anchored by a world-class sales operation, healthy financials, and unique commercial partnerships with industry leaders such as TelevisaUnivision, Facebook, Twitter, Spotify, LinkedIn, TikTok, and Grab, among others. Our service portfolio enables high-performance campaigns while using highly competitive audience reach, cutting-edge mobile programmatic solutions, machine-learned bidding algorithms, and demand-side platforms on a global scale. Entravision’s global commercial footprint is anchored by strategic regional operations in the US, Latin America, Europe, and Asia. These branches forge strong client relationships, robust sales operations, and a common globalized corporate culture. We serve more than 4,500 technology and consumer brand clients, targeting more than 3 billion consumers around the world with a combined GDP of $36 trillion dollars. Headquartered in Santa Monica, California, USA. shares of Entravision Class A Common Stock trade on The New York Stock Exchange under the ticker symbol: EVC.

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