Senior iOS Engineer

At SumUp we are building innovative solutions to support small merchants to start, run, and scale their business. We offer a diverse range of products that integrate seamlessly into our users' lives by pushing the boundaries of financial technology, helping more than 4 million customers in 36 countries. From concept to deployment, you will play a key role in shaping the future of our products.

You will be part of the Invoices and Accounting Tribe, in the Copenhagen office. As a tribe, we are an autonomous team that works as a “micro company” within SumUp. You will be part of a cross-functional feature team (a squad), within the Tribe. We help merchants understand their finances. Our goal as a team is to create new products and services that show merchants how they earn and spend money. 

The app that you will work on will impact millions of merchants across the world daily, you will contribute to its vision and future, together with Designers, Product Managers and the team itself. Additionally, you will be an active contributor to the Mobile Chapter where all mobile developers shape our mobile ecosystem.

What you’ll do

• Work on customer-facing products (Invoices and Expenses), by developing new features, maintain existing ones, and continuously improving the user experience with the product
• Collaborate with tribe colleagues from Product, Design and Engineering on brainstorming ideas and grooming them into product features
• Participate in and contribute actively to the mobile chapter at SumUp
• Engage in knowledge sharing with other mobile developers in the tribe and guide them in areas of your expertise
• Work closely with the QA Lead on end to end testing initiatives
• Write great code and perform effective code reviews
• Track the app health with the help of logging/analytics/observability
• Work with stakeholders across the business (Product Specialists, Customer Support and Marketing)

You’ll be great for this role, if

• You are more of an individual contributor and can switch teams seamlessly to help them achieve their quarterly goals
• You are motivated to build full scale products that have already shown promise
• You care about usability, quality and performance of applications
• You have significant hands-on experience building mobile applications of similar complexity to SumUp’s Super App.
• You have extensive production experience with native app development in Swift.
• You have a sound knowledge of architectural design patterns such as MVVM-C, MVP, Delegation and Dependency Injection
• You have experience with CocoaPods and SPM dependency management in iOS apps.
• You strive for clean code and know how to write meaningful tests with good coverage

A few nice-to-haves

• Experience with Combine framework
• Experience building SDKs 
• Experience with CI/CD tools and GitHub Actions
• Kotlin Multiplatform and SwiftUI experience
• Knowledge of e2e testing of mobile apps

Why you should join SumUp

• We’re a truly global team of 3000+ people from 60+ countries, spread across 3 continents
• We offer a corporate pension scheme (9% by the company), life insurance, health insurance, private broadband and company phone
• We get together regularly for breakfasts, team events, office parties and sports
• We offer a heavily subsidized lunch everyday at the office along with snacks, coffee and other beverages so you are never hungry throughout the day
• Centrally located office next to Vesterport station, very well connected by public transport, with changing rooms and option for (paid) parking
• A dedicated annual Learning & Development budget for attending conferences and/or advancing your career through further education
• Enrollment onto our virtual stock ownership program - you will own a stake in SumUp’s future success
• You’ll have the opportunity to attend the global offsites and hackathons at beautiful locations