Senior Mobile Engineer (iOS & Android)

We are looking for a highly skilled Senior Mobile Engineer with proven production experience across both iOS and Android platforms to help build and evolve large-scale, customer-facing mobile experiences. The ideal candidate has deep expertise in Swift, UIKit, SwiftUI, Design Systems, and modern iOS architecture, with a strong focus on scalability, performance, reliability, and engineering excellence. Responsibilities Design, develop, and maintain scalable, high-quality native iOS applications using Swift, UIKit, and SwiftUI Drive the design and implementation of modern iOS architecture, modular components, reusable frameworks, and engineering best practices Build and evolve Design Systems and reusable UI components, enabling consistent customer experiences and improving development efficiency across product teams Develop complex customer-facing features that integrate with backend APIs, microservices, personalization, loyalty, product, cart, checkout, and other enterprise platforms Collaborate closely with Product, UX/Design, Android, Backend, QA, Architecture, and Platform teams to design and deliver end-to-end solutions Partner with the Mobile Platform team to adopt and enhance shared frameworks, foundational capabilities, architecture standards, developer tooling, and common services Participate across the complete SDLC, including requirements analysis, technical design, implementation, testing, deployment, monitoring, and production support Contribute to and continuously improve CI/CD pipelines, automated testing, build processes, release automation, and developer productivity Write clean, maintainable, secure, and testable code with strong unit and UI test coverage Take part in code reviews, technical design reviews, architecture discussions, and engineering documentation Identify and address technical debt while driving improvements in application performance, scalability, reliability, security, accessibility, and maintainability Mentor engineers, share technical knowledge, and help establish strong engineering standards across the mobile organization Requirements 3+ years of professional experience developing native iOS applications, with existing production experience across both iOS and Android Expertise in Swift, UIKit, and SwiftUI, along with the iOS SDK Hands-on background in building and maintaining Design Systems, reusable UI components, and shared libraries/frameworks Strong understanding of iOS application architecture, design patterns, modularization, dependency management, and separation of concerns Proficiency in designing applications that integrate with REST APIs and distributed backend services Knowledge of networking, concurrency, and data persistence, along with application lifecycle, memory management, and performance optimization Skills in unit testing, UI testing, and code quality practices, including Git and automated build/release processes Familiarity with CI/CD pipelines and mobile application deployment processes Understanding of SDLC, Agile development practices, and production support for large-scale applications Experience collaborating with Platform teams and cross-functional engineering teams to deliver shared technical capabilities Capability to troubleshoot complex production issues using application monitoring, analytics, crash reporting, and observability tools Excellent written and verbal communication skills, with the ability to effectively convey technical decisions, trade-offs, risks, and dependencies to both technical and non-technical stakeholders Nice to have Background in developing large-scale retail, e-commerce, or high-traffic consumer mobile applications Experience with modular iOS architectures and migration/evolution of large existing codebases Showcase of driving engineering excellence initiatives across mobile organizations We offer International projects with top brands Work with global teams of highly skilled, diverse peers Healthcare benefits Employee financial programs Paid time off and sick leave Upskilling, reskilling and certification courses Unlimited access to the LinkedIn Learning library and 22,000+ courses Global career opportunities Volunteer and community involvement opportunities EPAM Employee Groups Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn EPAM is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, sexual orientation, gender identity or expression, disability, protected veteran status, or any other characteristic protected by applicable law.