SumUp enables businesses to get paid easily, process orders quickly, sell online instantly, and manage their money more efficiently. SumUp creates the tools businesses need to make their business (and their customers) thrive and we are now looking to grow our team in Warsaw.

As a Senior iOS Engineer as part of a cross-functional team, you’ll play a key part in helping us build SumUp's product ecosystem that can take an aspect of our product and perfect it from concept to execution. We are building an integrated ecosystem of products such as point of sale, online store, invoicing & accounting and enabling merchants to seamlessly access all products within one powerful mobile app.

Are you a Senior iOS Engineer with experience in building reliable, secure and easy-to-use features for iOS apps? If so, come and join a team working on features that are exposed to millions of users across the globe. After all, you’ll be empowering merchants around the world to be even more successful. 

What you’ll do in this iOS Engineer role

• Help evolve our Super App, an integral part of SumUp, used by millions of people around the world
• Work alongside our Online Store engineering team, consisting of both iOS and Android engineers as well as backend and web engineers
• Build our Online Store and Bookings products in our merchant app to help our merchants grow their businesses
• Dive into the code to create clean components in our codebase, develop and refine features, write tests and keep performance tip-top
• Work closely with product and design peers to build features that are maintainable, usable and beautiful
• Help us rethink problems we've solved before in a different way as needs evolve

You’ll be a great fit for this iOS Engineer role if

• You're comfortable with a Swift ecosystem and have 5+ years of development experience
• You strive for clean code and are familiar with working with a modularised application
• You care about user interaction, usability, and of course, making the UI beautiful
• You know what to test, why to test it, and how to write flexible tests that won't break
• You thrive in a cross-functional and collaborative environment in which we empower each other to grow
• You love coding and take the time to reflect on all aspects of your implementation, be it the frameworks, languages or processes
• You keep high level of autonomy and communication skills, prioritize the right work to do
• You are motivated much beyond just writing code; and care about the value delivered to merchants. Have a can-do attitude and product mindset
• Your English language skills, both spoken and written allow you to articulate complex topics

Required skills

• 5+ years of iOS development experience
• Fluent in Swift and Objective-C
• Experience building complex UI using SwiftUI and UIKit frameworks
• Experience with Combine framework
• Solid understanding of mobile app design patterns and architectures - MVVM-C, MVP, Delegation, Dependency Injection, etc
• Experience in dependency management with cocoapods and SPM
• Experience in interacting with RESTful APIs
• Experience in writing unit tests and knowledge of e2e testing

A great addition could be

• Experience in building SDKs \ Frameworks
• Experience with CI/CD tools and GitHub Actions
• Kotlin Multiplatform
• Familiarity with accessibility features and technologies on iOS platform

Why you should join SumUp:

📚  A dedicated annual Learning &Development budget for attending conferences and/or advancing your career through further education.

🚀  Enrolment into our virtual stock ownership program - you will own a stake in SumUp’s future success. 

👩🏼‍💻  The opportunity to work on large-scale FinTech products used by millions of businesses around the world.

⚙️  Dedicated time every other week for side projects and open source initiatives as well as a yearly hackathon. 

🚵🏾‍♂️  Co-financed Sport Card membership

🩺  Private Medical Insurance for you and your family

Job Application Tip

We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.