iOS Engineer - Platform

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 🧩

With a 10+ year-old codebase and more than 18 iOS developers pushing code daily to the same repository, we face numerous challenges. Our most important technologies include:

• Our own simplified TCA-inspired architecture with RxSwift
• Custom dependency injection system
• Extensive testing infrastructure including snapshot-based integration tests
• Modern UIKit and SwiftUI
• Performance monitoring and analytics tools
• Realm/CoreData
• Quick/Nimble
• Snapshot Testing

What You Will Do 👇

• Design and implement scalable solutions for our modular architecture
• Work on continuous integration and deployment pipelines using Python and Bitrise
• Develop and maintain automation tools for improving developer productivity
• Create and improve monitoring systems for key metrics and performance indicators
• Collaborate across different technical stacks to establish best practices and architectural guidelines
• Drive technical decisions that impact not only iOS but potentially other platforms
• Help teams adopt and leverage our custom testing infrastructure effectively
• Proactively identify and solve engineering bottlenecks
• Work with data-driven approaches to measure and improve development processes

What We’re Looking For 🔎

• Strong experience with Swift and iOS development
• Proven track record of writing clean, maintainable code
• Experience working in large modular codebases with multiple teams
• Data-driven mindset with strong analytical skills
• Excellent communication and collaboration abilities
• Strong problem-solving skills with attention to detail

What Would Be A Plus 🚀 

• Experience with CI/CD pipelines and build automation
• Knowledge of performance monitoring and metrics
• Experience with Python or other scripting languages
• Background in developer tooling or infrastructure
• Deep understanding of iOS build systems and dependency management (like CocoaPods internals or Bazel)
• Track record of optimizing complex build processes and dependency graphs

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:

• Competitive phantom shares package for all employees
• 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 Cigna
• 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
• Workiversary 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
• 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-Add 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.