Mobile Software Engineer (iOS)

Required skills: Swift, SwiftUI, UIKit, iOS SDK Mobile Software Engineer (iOS) We are looking for an experienced iOS Developer to join a project for one of Poland’s leading e-commerce platform . You will work on the company’s flagship iOS application, used by millions of customers , developing and integrating new mobile experiences and services. The role combines modern native iOS development, complex integrations, security, and performance optimization in a large-scale, customer-facing product. We offer: Location: Poznań or Warsaw office. Hybrid working model (occasional visits to workshops, project meetings, or other project-related events may be required). Compensation: 90–110 PLN net + VAT / hour on a B2B contract, depending on experience and level of expertise. Responsibilities: Native UI Development Design and build highly responsive, scalable, and user-friendly interfaces using SwiftUI and UIKit . Secure Integrations & Authentication Implement secure data handovers and authentication flows between the native iOS application and external partner web endpoints, including OAuth/OIDC , token exchange, and session management. Performance & Stability Ensure that newly implemented venture components meet high standards for performance, stability, responsiveness, and memory efficiency . Integration with External Services Work closely with external partner solutions and ensure seamless integration between native iOS components and third-party web-based experiences. Code Quality & Maintenance Deliver clean, maintainable, and production-ready code while contributing to the long-term stability and evolution of the application. We are looking for: Advanced knowledge of Swift and the Apple iOS SDK . Strong commercial experience developing iOS applications using SwiftUI and UIKit . Solid understanding of mobile application security , networking, REST APIs, and JSON. Practical experience with secure session management and bridging authentication between native iOS views and third-party web portals . Proven track record of delivering and maintaining high-performance, production-grade native iOS applications . Strong understanding of iOS application architecture, debugging, and performance optimization. Nice to have Previous experience with subscription-based business models . Experience integrating Apple Pay or other payment solutions. Experience working with complex transactional checkouts . Knowledge of iOS accessibility tools and best practices. Experience implementing deep linking and related navigation mechanisms. Experience working with external partners and integrating third-party services. This role is not perfectly suited for you, but you have a friend who would fit? Recommend your friend and get up to 5000 zł! Referral Program: Talent from your network Don't hesitate and apply now! 24/6/2026/r/3589