Android Developer

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  "detail": {
    "url": "https://smadexslu.applytojob.com/apply/jobs/details/Rykr3FSZuQ?&",
    "heading": "Android Developer",
    "html_title": "JazzHR » Job Listings",
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    "description_html": "<p><strong>Smadex </strong>is a cutting-edge ad-tech company: we process more than 4.5 million ad requests per second, replying in under 100ms. Every day, we generate several TBs of data that need to be processed, analyzed, and aggregated so that our real-time components get smarter everyday. If you’re passionate about building high-performance mobile solutions and thrive in a fast-paced, challenging environment, we want to hear from you!</p><p style=\"text-align:center;\"><strong>This is a full-time hybrid position based in Barcelona.</strong></p><p>We are looking for an <strong>Android Developer</strong> to play a vital role in helping us transform our new advertising SDK from a working prototype into a robust, high-performance product. This is a hands-on coding role where you'll have a high impact by contributing to strategically key product for Smadex.</p><p>This is an amazing opportunity to apply and grow your skills in a high-scale ad-tech environment. Your initial tasks will include migrating our existing Java-based prototype to 100% Kotlin, implementing new features, writing tests, and fixing bugs, learning the best practices of SDK development.</p><p><strong>The Opportunity:</strong></p><ul><li>Write clean, maintainable, and proof-tested Java and Kotlin code for our Android SDK.</li><li>Collaborate with our SDK team to implement new features and complete core functionalities.</li><li>Help migrate our existing Java prototype to Kotlin & modern Android standards.</li><li>Assist in identifying, debugging, and resolving performance issues and bugs.</li><li>Participate actively in feature’s definitions, code reviews, providing and receiving constructive feedback to improve code quality.</li><li>Work actively with iOS SDK and backend teams to ensure a unified and robust product.</li></ul><p><strong>Requirements and Qualifications:</strong></p><ul><li>A foundational understanding of Android development and the application lifecycle.</li><li>Solid programming skills in <strong>Kotlin</strong>.</li><li>Familiarity with <strong>Java.</strong></li><li>Familiarity with consuming <strong>RESTful </strong>APIs.</li><li>A strong desire to learn, contributing to team with proactive attitude, and excellent problem-solving skills.</li><li>Great communication skills in both Spanish and English.</li><li>A genuine passion for mobile technology, staying updated with the latest advancements, and contributing to the Android ecosystem.</li></ul><p><strong>Bonus Points:</strong></p><ul><li>Experience building or maintaining an Android library/SDK.</li><li>Familiarity with multithreading concepts on Android is a plus.</li><li>Exposure to unit testing frameworks like JUnit or Mockito/Mockk.</li><li>Personal projects on GitHub or the Play Store that you can share with us.</li><li>Familiarity with iOS development is a plus.</li></ul><p style=\"text-align:center;\"><strong>Please note that we do NOT provide VISA sponsorship. Candidates without a legal permit to work in Spain won't be considered.</strong></p><p><strong>What is in it for you:</strong></p><ul><li>Integrate a highly motivated and young team</li><li>Great compensation package</li><li>Top location at the heart of Barcelona with a rooftop terrace, Barbeque, and a fully stocked fridge</li><li>Great work-life balance: work from home (2 days per week), flexible hours</li><li>LinkedIn Learning and training opportunities</li><li>Meal vouchers - Ticket Restaurant monthly allowance</li><li>Monthly gym allowance: Choose between DiR Gym and Wellhub</li><li>Monthly TGIF events</li><li>Regular team-building events</li><li>Fun and friendly work environment with talented marketers and engineers from over 40 countries</li><li>And more!</li></ul><p>If you want to know more about us visit our website <a href=\"https://smadex.com/\">Smadex.com</a>, and for a sneak peek of the cool stuff we build check this <a href=\"https://www.youtube.com/watch?v=l0mvXogANE4\">video</a> out!</p>",
    "description_text": "Smadex is a cutting-edge ad-tech company: we process more than 4.5 million ad requests per second, replying in under 100ms. Every day, we generate several TBs of data that need to be processed, analyzed, and aggregated so that our real-time components get smarter everyday. If you’re passionate about building high-performance mobile solutions and thrive in a fast-paced, challenging environment, we want to hear from you!\n This is a full-time hybrid position based in Barcelona.\n We are looking for an  Android Developer  to play a vital role in helping us transform our new advertising SDK from a working prototype into a robust, high-performance product. This is a hands-on coding role where you'll have a high impact by contributing to strategically key product for Smadex.\n This is an amazing opportunity to apply and grow your skills in a high-scale ad-tech environment. Your initial tasks will include migrating our existing Java-based prototype to 100% Kotlin, implementing new features, writing tests, and fixing bugs, learning the best practices of SDK development.\n The Opportunity:\n Write clean, maintainable, and proof-tested Java and Kotlin code for our Android SDK.\n Collaborate with our SDK team to implement new features and complete core functionalities.\n Help migrate our existing Java prototype to Kotlin & modern Android standards.\n Assist in identifying, debugging, and resolving performance issues and bugs.\n Participate actively in feature’s definitions, code reviews, providing and receiving constructive feedback to improve code quality.\n Work actively with iOS SDK and backend teams to ensure a unified and robust product.\n Requirements and Qualifications:\n A foundational understanding of Android development and the application lifecycle.\n Solid programming skills in Kotlin .\n Familiarity with Java.\n Familiarity with consuming RESTful APIs.\n A strong desire to learn, contributing to team with proactive attitude, and excellent problem-solving skills.\n Great communication skills in both Spanish and English.\n A genuine passion for mobile technology, staying updated with the latest advancements, and contributing to the Android ecosystem.\n Bonus Points:\n Experience building or maintaining an Android library/SDK.\n Familiarity with multithreading concepts on Android is a plus.\n Exposure to unit testing frameworks like JUnit or Mockito/Mockk.\n Personal projects on GitHub or the Play Store that you can share with us.\n Familiarity with iOS development is a plus.\n Please note that we do NOT provide VISA sponsorship. Candidates without a legal permit to work in Spain won't be considered.\n What is in it for you:\n Integrate a highly motivated and young team\n Great compensation package\n Top location at the heart of Barcelona with a rooftop terrace, Barbeque, and a fully stocked fridge\n Great work-life balance: work from home (2 days per week), flexible hours\n LinkedIn Learning and training opportunities\n Meal vouchers - Ticket Restaurant monthly allowance\n Monthly gym allowance: Choose between DiR Gym and Wellhub\n Monthly TGIF events\n Regular team-building events\n Fun and friendly work environment with talented marketers and engineers from over 40 countries\n And more!\n If you want to know more about us visit our website Smadex.com , and for a sneak peek of the cool stuff we build check this video out!",
    "jsonld_jobposting": {
      "url": "https://smadexslu.applytojob.com/apply/Rykr3FSZuQ/Android-Developer",
      "@type": "JobPosting",
      "title": "Android Developer",
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      "datePosted": "2026-04-13",
      "description": "<p><strong>Smadex </strong>is a cutting-edge ad-tech company: we process more than 4.5 million ad requests per second, replying in under 100ms. Every day, we generate several TBs of data that need to be processed, analyzed, and aggregated so that our real-time components get smarter everyday. If you’re passionate about building high-performance mobile solutions and thrive in a fast-paced, challenging environment, we want to hear from you!</p><p style=\"text-align:center;\"><strong>This is a full-time hybrid position based in Barcelona.</strong></p><p>We are looking for an <strong>Android Developer</strong> to play a vital role in helping us transform our new advertising SDK from a working prototype into a robust, high-performance product. This is a hands-on coding role where you'll have a high impact by contributing to strategically key product for Smadex.</p><p>This is an amazing opportunity to apply and grow your skills in a high-scale ad-tech environment. Your initial tasks will include migrating our existing Java-based prototype to 100% Kotlin, implementing new features, writing tests, and fixing bugs, learning the best practices of SDK development.</p><p><strong>The Opportunity:</strong></p><ul><li>Write clean, maintainable, and proof-tested Java and Kotlin code for our Android SDK.</li><li>Collaborate with our SDK team to implement new features and complete core functionalities.</li><li>Help migrate our existing Java prototype to Kotlin & modern Android standards.</li><li>Assist in identifying, debugging, and resolving performance issues and bugs.</li><li>Participate actively in feature’s definitions, code reviews, providing and receiving constructive feedback to improve code quality.</li><li>Work actively with iOS SDK and backend teams to ensure a unified and robust product.</li></ul><p><strong>Requirements and Qualifications:</strong></p><ul><li>A foundational understanding of Android development and the application lifecycle.</li><li>Solid programming skills in <strong>Kotlin</strong>.</li><li>Familiarity with <strong>Java.</strong></li><li>Familiarity with consuming <strong>RESTful </strong>APIs.</li><li>A strong desire to learn, contributing to team with proactive attitude, and excellent problem-solving skills.</li><li>Great communication skills in both Spanish and English.</li><li>A genuine passion for mobile technology, staying updated with the latest advancements, and contributing to the Android ecosystem.</li></ul><p><strong>Bonus Points:</strong></p><ul><li>Experience building or maintaining an Android library/SDK.</li><li>Familiarity with multithreading concepts on Android is a plus.</li><li>Exposure to unit testing frameworks like JUnit or Mockito/Mockk.</li><li>Personal projects on GitHub or the Play Store that you can share with us.</li><li>Familiarity with iOS development is a plus.</li></ul><p style=\"text-align:center;\"><strong>Please note that we do NOT provide VISA sponsorship. Candidates without a legal permit to work in Spain won't be considered.</strong></p><p><strong>What is in it for you:</strong></p><ul><li>Integrate a highly motivated and young team</li><li>Great compensation package</li><li>Top location at the heart of Barcelona with a rooftop terrace, Barbeque, and a fully stocked fridge</li><li>Great work-life balance: work from home (2 days per week), flexible hours</li><li>LinkedIn Learning and training opportunities</li><li>Meal vouchers - Ticket Restaurant monthly allowance</li><li>Monthly gym allowance: Choose between DiR Gym and Wellhub</li><li>Monthly TGIF events</li><li>Regular team-building events</li><li>Fun and friendly work environment with talented marketers and engineers from over 40 countries</li><li>And more!</li></ul><p>If you want to know more about us visit our website <a href=\"https://smadex.com/\">Smadex.com</a>, and for a sneak peek of the cool stuff we build check this <a href=\"https://www.youtube.com/watch?v=l0mvXogANE4\">video</a> out!</p>",
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        "name": "Smadex SLU",
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