iOS Engineer

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.
The Challenge 🧩
We’re evolving a 10+ year-old codebase with over 18 iOS engineers contributing daily, balancing legacy challenges with modern architecture and tooling. Our tech stack includes:
A custom, TCA-inspired architecture powered by RxSwift
Internal dependency injection system
A robust testing culture with snapshot-based integration tests
Modern UIKit and expanding SwiftUI adoption
Data persistence with Realm and CoreData
Tools for performance monitoring and analytics
Testing frameworks like Quick/Nimble and Snapshot Testing
What You Will Do 👇
You’ll drive high-quality product experiences while helping the team grow, you will:
Contribute hands-on while being accountable for cross-team delivery, ensuring initiatives are aligned with both technical best practices and product goals
Collaborate with design, product and engineering leadership to frame and deliver scalable, high-quality solutions
Act as a technical reference within your tribe, supporting consistent implementation across teams
Coordinate with other platforms to ensure a cohesive, cross-platform experience
Help improve our architecture, tooling, and performance practices
Mentor 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 hands-on experience with Swift and iOS development
Ability to balance technical trade-offs with product impact
Solid understanding of architecture principles and code quality standards
Experience in collaborative, multi-team codebases
Familiarity with RxSwift or other reactive programming paradigms
Strong collaboration and communication skills
Comfortable working cross-functionally in a fast-evolving environment
What Would Be A Plus 🚀
Experience with SwiftUI in production environments
Background in modular architectures
Interest in the product lifecycle and how engineering shapes the user experience
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 + intensive 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.