Role Description Du möchtest moderne Mobile-Apps mitgestalten, die täglich über 20 Millionen Menschen weltweit aktiv nutzen? Die technische Weiterentwicklung stabiler und qualitativ hochwertiger iOS-Apps begeistert dich – insbesondere innovative Features gemeinsam mit Design-, API-Teams und Produktmanagement umzusetzen? Swift und SwiftUI gehören für dich zu moderner iOS-Entwicklung einfach dazu? Dein Anspruch an Codequalität, Performance und Nutzererlebnis ist genauso hoch wie unserer? Als Mobile App Entwickler bist du mit deinem Fachwissen maßgeblich an der Weiterentwicklung und Optimierung unserer nativen iOS-Apps beteiligt. Gemeinsam mit deinem Team trägst du Verantwortung für Codequalität, Stabilität und Nutzererlebnis. Ob an einem unserer vier Standorte – Bonn, Bornheim, Coventry oder Miami – oder remote nach Absprache: Wir freuen uns auf deine Unterstützung! Qualifications - Mehrjährige Berufserfahrung in der nativen iOS-Entwicklung - Sehr gute Kenntnisse in Swift und SwiftUI - Freude daran, sauberen, strukturierten und wartbaren Code zu schreiben - Idealerweise Erfahrung mit automatisierten Tests und Clean Architecture Requirements - Betriebssystem: MacOS & für deinen Erfolg beim mobilen Arbeiten bekommst du ein neues MacBook Pro & Smartphone - Entwicklungsumgebung: Swift, SwiftUI, Swift Concurrency, Combine - Tools: GitLab, Git, CI/CD mit fastlane, GitHub Copilot Benefits - Interdisziplinäre Zusammenarbeit: Du bringst dich in bereichsübergreifende Projekte ein und arbeitest eng mit Kolleg*innen aus Entwicklung, Produkt, Marketing und weiteren Teams zusammen. - Innovationsfreude und Gestaltungsfreiheit: Bei uns hast du die Möglichkeit, neue Ideen einzubringen und moderne Technologien aktiv mitzugestalten. - Flexibel und lebensnah: Ob im Büro, remote oder hybrid – wir achten darauf, dass dein Job in Einklang mit deinem Alltag, deinen Bedürfnissen und deiner Lebensphase steht.

Role Description We are looking for a Senior iOS Engineer to own Sekai’s iOS app and help us build a fast, polished, AI-native consumer experience. This role is for someone with strong iOS experience, good consumer product taste, and the ability to move quickly in a startup environment. You should keep up with the latest Apple platform updates, understand what great mobile apps feel like, and be excited to use AI to rethink how fast a small team can build. You will work closely with Product, Design, Backend, and Mobile engineers to improve the iOS app experience, ship new features, and help define our AI-native mobile development workflow. Responsibilities - Own and improve Sekai’s iOS app experience, quality, and release velocity - Build and ship consumer-facing iOS features with strong attention to speed, polish, and reliability - Bring modern iOS best practices and the latest Apple platform knowledge to the team - Work across native iOS, hybrid mobile, and web-based app experiences when needed - Partner closely with Product, Design, Backend, and Mobile engineers to move from idea to shipped product quickly - Use AI development tools to accelerate coding, debugging, refactoring, and product iteration Qualifications - Strong professional experience building and shipping iOS apps - Deep familiarity with Swift, iOS SDK, and modern iOS development practices - Experience working on consumer mobile apps with high standards for UX, performance, and reliability - Experience owning projects end-to-end in a startup, 0-to-1 product environment, or similarly fast-moving team - AI-native mindset: you actively use AI tools to build faster, explore better implementation paths, and improve engineering productivity - Strong product sense and willingness to work closely with design and product teams Nice to Have - Experience with social, entertainment, creator, gaming, UGC, or feed-based consumer products - Experience with React Native, Flutter, WebView, or other hybrid mobile architecture - Familiarity with Android, backend systems, or full-stack product development - Experience working on AI-native products or teams that heavily use AI in day-to-day development Benefits - Work with an AI-native team - Move fast and own meaningful problems - Flexibility to explore new ideas from an early stage

• Build and ship native Android features for onboarding, accounts, cards, payments, transfers, rewards and AI-assisted user journeys. • Turn complex financial flows into simple, fast and reliable mobile experiences. • Work closely with product, design, backend and AI engineers to take features from idea to production. • Own app quality across performance, crash rate, loading states, edge cases and release stability. • Use production feedback, analytics and customer behaviour to improve what you build after launch. • Integrate APIs, authentication, secure data handling and financial workflows with strong attention to reliability.

• Build and ship native Android features for onboarding, accounts, cards, payments, transfers, rewards and AI-assisted user journeys. • Turn complex financial flows into simple, fast and reliable mobile experiences. • Work closely with product, design, backend and AI engineers to take features from idea to production. • Own app quality across performance, crash rate, loading states, edge cases and release stability. • Use production feedback, analytics and customer behaviour to improve what you build after launch. • Integrate APIs, authentication, secure data handling and financial workflows with strong attention to reliability.