Role Description As a Senior Mobile Engineer, iOS, you’ll help design, build, and maintain high-quality mobile applications that deliver reliable, performant experiences for users. You’ll collaborate with cross-functional teams to develop new features, improve app stability and usability, and contribute to technical decisions that support product goals. Responsibilities - Develop, test, and maintain efficient Swift-based applications for iOS devices - Collaborate with designers, product managers, and engineers to implement and refine new features - Support app performance, stability, and usability across a range of iOS devices and OS versions - Participate in code reviews and help uphold code quality and engineering best practices - Debug and resolve technical issues and bugs throughout development and testing - Contribute to architectural discussions and support technical decision-making - Integrate APIs, including REST and/or GraphQL services, into mobile applications - Write and maintain unit and UI tests using XCTest or similar tools - Support CI/CD workflows, App Store releases, and version control practices - Stay current with the evolving iOS ecosystem and introduce relevant improvements into the codebase - Collaborate effectively in Agile delivery cycles, including release planning, bug fixing, and feature development - Mentor junior engineers and partner with cross-functional stakeholders to deliver quality solutions - Other duties as assigned Qualifications - 5+ years of relevant mobile engineering experience - Strong proficiency in Swift for iOS development - Solid understanding of iOS frameworks including UIKit, SwiftUI, and Core Data - Experience with mobile architecture patterns such as MVC and MVVM; exposure to Clean Architecture is a plus - Experience building reliable iOS applications with offline support - Practical experience integrating APIs such as REST and/or GraphQL - Comfort writing unit and UI tests using XCTest or similar testing tools - Familiarity with performance debugging tools such as Instruments - Experience with the App Store release process and CI/CD workflows - Understanding of mobile security best practices, including secure storage and authentication - Experience with version control and deployment workflows - Strong communication skills and the ability to collaborate with technical and non-technical stakeholders - Ability to work independently, take ownership of assigned features, and contribute effectively in a team environment - Experience working within Agile methodologies and mentoring junior engineers Company Description Monks is the global, digital-first, data-driven, unitary operating brand of S4 Capital plc. With a legacy of innovation and specialized expertise, Monks combines an extraordinary range of global Marketing and Technology Services to redefine how brands interact with the world.