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Senior iOS Developer (Online Payments)

Berlin, Germany · Mobile

Our passion at SumUp is championing small businesses. We believe in creating technology that is flexible, fair, affordable and easy to use. Every day millions of people around the world dream of starting their own businesses. We strive to help them to do this. Our long-term ambition is to “close the loop” by enabling businesses to turn transactions with customers into long-term relationships.

As an Senior iOS Engineer in the Online Payments Tribe, You’ll be part of the product team building a flagship product of Online Payments tribe - Payment Links, which enables our merchants around the world to accept payments online with just a few clicks in their smartphones.

In this role, You will be:

  • Implementing solutions that help merchants around the globe to facilitate their payments online easily

  • Designing and building iOS SDKs for the Online Payments API

  • Working with your peers & colleagues, product managers, designers and engineering managers to understand the challenge, to design a solution and deliver it

  • Part of feature discovery early on: participating in merchant interviews and contributing with your ideas to the solution-finding process

  • Working closely with the mobile chapter on setting up and implementing best engineering practices for iOS across the company

You would be great for this role if You have:

  • 5+ years of experience in Swift and the iOS ecosystem

  • An ability to understand a bigger problem, design a solution, chunk into workable items and deliver the solution

  • A good understanding of modularisation

  • Fluent English language skills, both spoken and written, and the ability to articulate complex topics (great communication skills)

  • Experience of agile methodologies 

  • A generalist mentality 

  • A mature business-focused approach to engineering

  • A passion for clean, maintainable, and testable code

  • A clear understanding of what to test, why to test it, and how to write good tests

Advantageous experience:

  • An understanding of how backend systems function and interact with mobile / frontend

  • Experience with Objective C

  • Experience with payments APIs

  • Experience building SDKs

Why you should join SumUp:

  • We’re a truly global team

  • Have full autonomy (for real!) to propose, lead and implement changes that will up our game.

  • You will have the freedom to drive your career, own projects and make an impact across the company.

  • An amazing team and work environment that works with passion and purpose to achieve incredible results.

  • We get together regularly for breakfasts, team events, office parties and sports.

Additional Information 💫

Start date: As soon as possible


Work office location(s): Berlin 

Office first approach

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, colour, 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.