> Markdown version of [/jobs/ext/1689441-android-developer](https://www.wearedevelopers.com/jobs/ext/1689441-android-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Android Developer - **Company:** Bidmachine Exchange - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Continuous Integration, Data Structures, Gradle, Mobile Application Software, Kotlin, Build Process, Software Version Control - **Published:** July 11, 2026 - **Apply:** https://www.jobleads.com/es/job/ecfb7cd374acff5820cd9e2c9b9d49fb3 ## About the Role * 5+ years of experience in mobile software development. * Experience in writing Unit Tests and Instrumented Tests. * Good knowledge of data structures and algorithms. * Ability to work independently, estimate and deliver on time. * Proficiency in Java and Kotlin. * Exposure to Gradle build process and Continuous Integration. * Experience with version control systems. * Experience in SDK development is a plus. Desired Traits * Strong initiative and good team player. * Strong communication skills combined with self-motivation and the ability to think outside the box. ## Description * Optimization of SDK performance. * Working on new SDK functionalities to guarantee best customer/partner practices for both sides: networks and for developers of mobile applications. It includes participating in various development phases: planning, demo of new features, writing tests, building and releasing SDK. * Revision and support of already written parts. * Shifting from Java to Kotlin in long term run. 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. ## Related Videos - [Modular Secrets to Lightning-Fast Android Builds](https://www.wearedevelopers.com/videos/1428-modular-secrets-to-lightning-fast-android-builds) - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [Empowering Democratic Processes: Building a Hybrid Voting Platform](https://www.wearedevelopers.com/videos/1163-empowering-democratic-processes-building-a-hybrid-voting-platform) - [Introducing Kotlin Multiplatform in an existing project](https://www.wearedevelopers.com/videos/276-introducing-kotlin-multiplatform-in-an-existing-project) - [Moving from Java to Kotlin](https://www.wearedevelopers.com/videos/384-moving-from-java-to-kotlin) - [Give your build some love, it will give it back!](https://www.wearedevelopers.com/videos/514-give-your-build-some-love-it-will-give-it-back) ## Related Articles - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025) - [A Guide to Choosing the Right Tools for App Developers](https://www.wearedevelopers.com/magazine/391-a-guide-to-choosing-the-right-tools-for-app-developers) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe)