Senior iOS Engineer - SuperApp
The Engagement Mission sits within SumUp's SuperApp & Web squad, a cross-functional team building the core experience that millions of merchants interact with daily. The team owns the home screen of the SumUp Business App, connecting merchants to payments, banking, invoicing, loyalty, and more. SumUp is growing the team to deliver an ambitious roadmap of new navigation patterns, deeper product integrations, and a full modularisation of the codebase, based in Berlin.
Responsibilities
- ▹Build and maintain core iOS features across the home screen, including first-time user experience, quick actions, widgets, the tools section, and upsell and cross-sell channels
- ▹Lead the development of new initiatives end-to-end, from technical design through to shipping, working closely with product, design, and partner engineering teams
- ▹Drive the migration to SwiftUI and contribute to the modularisation of the codebase, improving scalability and developer experience
- ▹Review code, shape technical decisions, and help raise the bar across the iOS chapter
- ▹Collaborate with multiple internal teams to align on feature direction and deliver in a fast-moving environment
Requirements
- ▹Strong proficiency in Swift and SwiftUI, with a track record of building and shipping production iOS features at scale
- ▹Experience navigating and refactoring complex, evolving codebases with a focus on clean architecture (MVVM/MVP)
- ▹Comfortable working in a cross-functional environment where scope isn't always well-defined and priorities shift quickly
- ▹Ability to take full ownership of initiatives independently, from technical scoping through to delivery
- ▹Experience collaborating across teams without owning the product roadmap directly, aligning with multiple stakeholders
- ▹Strong technical writing skills and a habit of writing clear documentation and thoughtful pull requests
Soft skills
What we offer
- ▹Virtual Stock Option programme, giving a stake in SumUp's future success
- ▹Dedicated annual L&D budget of EUR 2000
- ▹Corporate pension scheme with matching up to 20% of contributions
- ▹28 days of paid leave plus public holidays and special leave days
- ▹Additional benefits such as Urban Sports Club subsidy, Kita placement assistance, and subsidised office lunches
- ▹1-month sabbatical after 3 years of service (Break4me)
- ▹Referral bonus
About the company
SumUp believes in the everyday hero, creating tools that help small business owners run their businesses. With a founder's mentality and a team-first attitude, its diverse teams across Europe, South America, and the United States support small business owners in doing what they love.