SumUp enables businesses to get paid easily, process orders quickly, sell online instantly, and manage their money more efficiently. We create the tools businesses need to make their business and their customer experience thrive!

Joining the Global Bank tribe means you’ll play a key part in helping us build SumUp's own digital bank. You’ll be part of a global, autonomous, cross-functional team that takes an aspect of our product and perfect it from concept to execution. Becoming a part of the Global Bank Tribe means working alongside ~250 people with 32 nationalities across Cologne, Berlin, São Paulo, Santiago, Sofia and Vilnius who love to take ownership, work with purpose, and help businesses thrive.

As a Senior Mobile Engineer (iOS) in the Global Bank Tribe, you'll be responsible for building reliable, secure and easy-to-use features inside our mobile app that’s exposed to millions of users across the globe. You’ll empower merchants with a smooth, effortless and engaging banking experience. You will be a part of a Global Bank Tribe, which means that you will have experience working with people from different places around the world and the freedom to experiment with new things and apply your ideas in our products.

What you’ll do

• Build our banking mobile app to help provide banking operations for our merchants across the world.
• You’ll work within cross-functional feature teams (squads) in the Banking Tribe, all dedicated to delivering a top-tier product that impact our global merchant base. 
• Work with large scale, highly available and resilient modern systems
• Participate in architectural discussions, propose solutions, and contribute to the technical roadmap of our iOS application.
• Dive into the code and create clean components in our codebase, develop and refine features and how we write tests and maintain peak performance.
• Work closely with product and design departments to build features that are maintainable, usable and beautiful.
• Help us rethink problems we've solved before in a different way as needs evolve.
• Develop a wealth of knowledge about our complex problem domain as well as its implications in the interface and the backend – and how to manage it in a clean way.

You’ll be great for this role if

• You have hands-on experience building mobile applications using Swift, and solid understanding of iOS app design principles, patterns, and best practices.
• You care about user interaction, usability, and of course, making the interface beautiful.
• Good knowledge of architectural design patterns such as MVVM and MVP, and proven experience ensuring modularized and scalable app architecture.
• You have experience with Cocoapods dependency management in iOS apps
• You strive for clean code and know how to write flexible tests that won't break and have experience with different test strategies, such as unit, snapshot etc.
• Good knowledge of design patterns mostly used in mobile development (dependency injection, observers etc)
• You love coding and take the time to reflect on all aspects of your implementation, be it the frameworks, languages or processes.
• Ability to take ownership and drive the development of exciting and impactful new features and products. 
• A genuine passion for writing well-structured, readable, and maintainable code
• You thrive in a team where you can learn and try new tech, collaborate on technical challenges and grow as a team.

Why you should join SumUp

• The opportunity to work on large scale fintech products used by millions of small businesses around the world
• Work on a high impact squad that is at the core of the Bank Tribe
• 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
• A corporate pension scheme 
• You'd enjoy other great benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidized office lunches and other location-tailored benefits, Babbel language platform subscription and more
• You’ll attend global offsites and/or hackathons.
• Join a truly global SumUp team of 3200+ people from 80+ countries, spread across 4 continents

About SumUp

We believe in the everyday hero.

Small business owners are at the heart of all we do, so we create powerful, easy-to-use financial solutions to help them run their businesses. With a founder’s mentality and a ‘team-first’ attitude, our diverse teams across Europe, South America, and the United States work together to ensure that the small business owners we partner with can be successful doing what they love. 

SumUp is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce. SumUp does not make hiring or employment decisions on the basis of race, color, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age, or any other basis protected by applicable laws or prohibited by company policy. SumUp also strives for a healthy and safe workplace and strictly prohibits harassment of any kind.

SumUp will not accept unsolicited resumes from any source other than directly from a candidate.

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.