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. 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. Our mission is to enable a connected trade ecosystem, making 2nd\-hand the norm through smart use of technology. Backed by top investors such as Accel, Insight Partners \& Naver Corp we bring our total valuation to 806 million EUR and are embarking on our international journey with the aim to become the world's best unique goods trading platform. **The Challenge** You will join a focused Topic Team, shipping features to millions of users while contributing to a constantly evolving 10\+ year\-old codebase. You will need to balance rapid feature delivery with keeping our stack modern and future\-proof. **What you will find:** * **Modern \& Pragmatic Stack:** A Kotlin\-first app using MVVM\+UDF, Coroutines, and Clean Code principles. All new features and our Design System are built using Jetpack Compose, and we are actively migrating legacy views. * **Modularization and DI:**You will navigate a project of 50\+ feature modules. We use Dagger/Anvil for DI and are currently evaluating Metro to further optimize our build times and leverage its latest features. * **Quality first:** We maintain 70% test coverage using practices like snapshot testing and integration tests in our daily development. Final release checks are performed by running E2E tests (via Maestro) and manual regression testing. * **Production Stability:** You will use our crash and performance monitoring systems to ensure your features run smoothly for our millions of users. **What You Will Do** * You'll drive high\-quality product experiences while helping the team grow. To do so, you will: + **Build and maintain feature modules** owned by your team, acting as the guardian of their quality. + **Work with a cross\-functional team** (Product, Design, Backend) to help define and implement new features.**Ensure initiatives are aligned with both technical best practices and product goals.** + Act as **a technical reference** for your team and **share your experience** with other Android Engineers across the Tribe. + Help improve our **architecture, tooling,** and **performance practices.** + Mentor your peers through **code reviews, pairing,** and **knowledge sharing.**Apply a **product\-first mindset**, balancing user value with technical excellence. **What We're Looking For** * Strong experience building top\-tier Android apps using technologies like **Kotlin, Coroutines, Anvil,** and **Compose.** * An excellent Computer Science foundation (data structures, algorithms, software design). * Experience working in **large modular codebases** shared by multiple teams. * A **data\-driven mindset** with strong analytical skills. * The ability to balance **technical trade\-offs with product impact.** * Strong communication skills and a growth mindset, with an openness to learning and knowledge sharing. **What Would Be A Plus** * Experience implementing a **Design System**. * Experience with the **Gradle build system** and **CI automation.** * Contributions to open\-source projects or developer communities. * A specific passion for accessibility standards and inclusive design. Do note that all our jobs are Barcelona based. We follow a hybrid model where flexibility rules. We commit to a minimum of 6 days per month in the office. Each team self\-organizes to decide on cadence and in\-person/remote rituals. Wallapop is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees as we want Wallapop to be a place for everyone. We sponsor visa processes for international candidates when applicable and provide legal \& admin support along the process combined with a competitive relocation package. Additionally to the opportunity to contribute to an agile product set up and work together towards achieving our meaningful mission, we offer the following **Perks \& Benefits**: * Generous individual learning budget of 2k per year * Group and individual English, Catalan \& Spanish lessons as part of our working day * Private Health Insurance with Alan * Flexible working hours \+ short Fridays * Flexible remuneration to deduct from gross salary (kindergarten/food/transport check) * Gym \& Wellness plan, including physiotherapist in the office * Generous referral Program \& Charity Donation * Bonus for weddings \& newborns * Wallapop Renta (Tax income support) * Monthly plan for free shipping, bumps \& home\-pick\-up on our services * Work anniversary Gifts and Birthday Surprises * Contribution towards your WIFI in your monthly payroll * One\-off payment based on compensation package to go towards setting up your home office * Relocation package (monetary support and legal advice) and visa sponsorship, if applicable * 26 holidays per year * TOP hardware of your choice (latest Apple or Windows) What does **the hiring process** for this position look like? *\*\*Please, note that all interviews take place remotely over hangouts.\*\** * **Intro Call** \- run by Talent Acquisition, focus on providing more information about the role and the company as well as going over your experience, motivation, and expectations. This usually takes 45\-60 minutes. * **Technical Task** \- you will be assigned a test that consists of a coding challenge to assess the technical skills required for the role. You will have up to 7 days to complete it. If you have a recent project that meets the same requirements, you can submit it instead. * **Expertise Interview** \- run by the core team, focusing on the hard skills and the ability to deliver in a given context. This usually takes 60\-90 minutes. * **Stakeholder Interview** \- run by the hiring team and relevant stakeholders, focus on the ability to collaborate \& deliver in a cross\-functional set\-up. This usually takes 60 minutes. * **Culture Interview** \- run by culture interviewers, focus on adherence to Wallapop's purpose and business proposition. This usually takes 60 minutes. * **Offer** \- should you be the right candidate, your offer will be discussed over a call with talent acquisition and will then be confirmed in writing.