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.

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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.
The ChallengeYou will join the iOS Platform team, the team that sets the technical direction for iOS at Wallapop. Our users are primarily other engineers, and our mission is to supercharge their daily productivity while defending the quality and performance of our app. We own the build system, developer tooling,



module architecture, testing infrastructure, and observability foundations that everyone else ships on top of.
We work on a 10+ year-old codebase used by millions of people (~115 modules and over 20,000 Swift files), where every second shaved off a build is multiplied across the entire engineering chapter.
In this role, you will own app performance as a product metric—from launch time and responsiveness to memory footprint and app size. As an iOS Platform Engineer, you will have company-wide scope, acting as an architect, mentoring engineers across the chapter, and tackling our most complex technical challenges.
- Build & Infra: Bazel-based build system with remote caching/execution, paired with Tente (our in-house Go CLI and BSP server to support IDEs like VSCode, Neovim).
- CI/CD & Testing: High-scale pipelines on Bitrise, a robust testing pyramid featuring Quick/Nimble, ~9,000 snapshot references, and

📌 iOS Engineer (Barcelona)
🏢 Wallapop
📍 Barcelona