ABOUT THE OPPORTUNITYJoin a world-class technology consultancy as a Senior i OS Developer, creating fast, fluid, responsive, and reliable mobile applications that provide rewarding customer experiences. You'll participate in the entire development cycle using modern technologies, architectures, and processes in a collaborative, Agile environment. This role offers you the opportunity to take ownership of your code from development to deployment, work with cutting‐edge mobile technologies, and be part of solutions design and implementation.PROJECT & CONTEXTYou'll develop and maintain i OS applications from requirements through to App Store deployment, writing clean, organized code that leverages software design patterns, architectural patterns, and data structures. The role involves creating fluid visual interactions, implementing mobile user experience patterns, and ensuring test coverage stays at agreed levels. You'll work with Swift, Cocoa Touch, and Apple frameworks, applying SOLID principles including dependency injection, single responsibility, and protocol‐oriented programming. Experience with functional reactive programming frameworks (Rx Swift, Reactive Cocoa), MVVM(-C) architecture, and CI/CD tools (fastlane, Jenkins, Travis, Go CD) is valued. You'll diagnose production issues, devise solutions, and work both autonomously and collaboratively. Knowledge of KMP and Graph QL is a plus. Expected travel varies by project (0-15%).WHAT WE'RE LOOKING FOR (Required)Swift expertise : Strong experience developing i OS applications with Swift programming languageApple frameworks mastery : Proficiency with Cocoa Touch and other Apple frameworksSOLID principles : Deep understanding of dependency injection, single responsibility, and protocol‐oriented programmingTesting proficiency : Experience with unit tests, UI testing, and accessibility testing, including writing testable codeFull lifecycle experience : Proven track record developing and maintaining i OS applications from requirements to App Store deploymentFunctional Reactive Programming : Experience with FRP frameworks like Rx Swift or Reactive CocoaMVVM(-C) architecture : Hands‐on experience implementing Model‐View‐View Model (with Coordinator) patternDesign patterns : Producing clean code leveraging software design patterns, architectural patterns, and data structuresAgile methodology : Agile mindset with experience in Scrum and Kanban frameworksCode ownership : Ability to take ownership of code through entire lifecycle—development, deployment, and maintenanceVisual interaction : Creating fluid visual interactions and implementing mobile user experience patternsCraftsmanship : Sense of pride in final outcomes, seeking best solutions and maintaining high standardsSelf-driven : Ability to work with minimal supervision toward common team goalsContinuous learning : Keeping up with latest trends, architectures, and technologies in mobile ecosystemTeam collaboration : Strong team player, sharing knowledge and leading by exampleLanguage requirement : Fluent English (mandatory)NICE TO HAVE (Preferred)Experience with Kotlin Multiplatform (KMP) and Graph QLCI/CD expertise with fastlane, Jenkins, Travis, or Go CDOpen‐source contributions or willingness to contributeExperience with functional programming conceptsKnowledge of advanced i OS performance optimization techniquesFamiliarity with Swift UI and Combine framework