We're waving goodbye to the complicated and confusing ways of traditional banking. As well as personal and business bank accounts,

we offer
joint accounts, accounts for 16-17 year olds, a free kids account and credit cards in the UK, with more exciting things to come beyond. With our hot coral cards and get-paid-early feature, combined with financial education on social media and our award winning customer service, we have a long history of creating magical moments for our customers Barcelona, Spain | Base salary for this role is depending on experience + Incentive Awards tied to your performance + benefits Hybrid model: 3 days a week in the office There are ~60 iOS engineers at Monzo and we're looking for more to join the team. We have several non-graduates; only some of us studied Computer Science; As an engineer here you'd be able to work directly with anyone across the company, and we run regular knowledge-sharing sessions so you'll learn heaps about everything from how banks work to effective communication. We contribute to open source software as much as possible. Our blog is a good place to learn even more about what we do We're searching for product-focused iOS engineers to evolve our native mobile app. You'll take pride in building polished user experiences, and you'll balance the need for well-tested resilient code with moving fast and iterating. As an iOS Engineer at Monzo you'll work in a small, autonomous product squad alongside Android Engineers, Backend Engineers, User Researchers, Product Designers, Product Managers, QA Testers, and Data Scientists. You and your team will be responsible for an overall company goal, rather than building a specific feature
- you'll have the opportunity to have impact on both what we build, and how we build it. Mobile engineers at Monzo work on everything from the personal banking product to customer support tools.



Every week we meet as an iOS discipline to discuss tools, techniques, problems we're encountering across the company and work together to improve our codebase and processes. Our iOS app Our app is 100% Swift and our latest features are built in SwiftUI and using elements of The Composable Architecture. Our networking stack is built upon Alamofire, using a generic interface to easily de-serialise objects of a certain type, and we mirror our backend micro-service architecture by building individual services to house our API logic. We log liberally to get alerted when they're triggered in Sentry which we also use to monitor crashes. Our testing stack comprises of unit tests for business logic, stubbed API tests for pseudo-integration tests, snapshot tests for UI, and XCUITest for testing user input and sequencing. We've published some talks and blog posts about how we work: Working with backend services on iOS What we've learnt building a design system in SwiftUI You're excited about and have experience in programming in Swift You have a product mindset: you care about customer outcomes and you want to make data-informed decisions You have an understanding computer science principles What's In It For You Base salary for this role is depending on experience + Incentive Awards tied to your performance + benefits

We offer
adaptable

working hours
and trust you to work enough hours to do your job well, at times that suit you and your team. Learning budget of €1,200 a year for books, training courses and conferences Our Interview Process Involves Three Main Stages There's a detailed blog on the interview process, for extra details, hints and tips. We'll only close this role once we have enough applications for the next stage. You can read more in our blog, 2026 Diversity and Inclusion Report and 2025 Gender Pay Gap Report. If you have a preferred name, please use it to apply. We don't need full or birth names at application stage #

📌 Senior iOS Engineer (Barcelona)
🏢 Monzo
📍 Barcelona