Senior Mobile Engineer (iOS & Android)

EPAM Systems; Argentina; On-site; ARS 106,112,000 - 181,906,000; Full time

Benefits offered by this job

Healthcare benefits

Global career opportunities

Paid time off and sick leave

Upskilling and certification courses

Job summary

EPAM Systems is seeking a Senior Mobile Engineer to lead native iOS development with production experience on both iOS and Android. You will design scalable architectures, contribute to Design Systems, and deliver customer-facing features at scale.

The role involves collaborating across Product, UX, and platform teams, building reusable components, and advancing CI/CD practices. Strong emphasis on performance, reliability, and engineering excellence.

Qualifications

• 3+ years of professional iOS development with production cross-platform experience.
• Expertise in Swift, UIKit, SwiftUI and iOS SDK.
• Experience building Design Systems and reusable UI components.
• Strong knowledge of architecture, modularization, and performance optimization.
• Experience with REST APIs, backend services, and testing practices.

Responsibilities

• Design, develop, and maintain scalable, high-quality native iOS applications using Swift, UIKit, and SwiftUI.
• Drive modern iOS architecture, modular components, reusable frameworks, and engineering best practices.
• Build and evolve Design Systems and reusable UI components.
• Develop complex customer-facing features that integrate with backend APIs and services.
• Collaborate with Product, UX/Design, Android, Backend, QA, Architecture, and Platform teams.
• Partner with Mobile Platform team to adopt shared frameworks and standards.
• Participate in the full SDLC including testing, deployment, and production support.
• Contribute to CI/CD pipelines, automated testing, and release automation.
• Write clean, secure, testable code with strong unit and UI test coverage.
• Mentor engineers and help establish mobile engineering standards.

Skills

Swift

UIKit

SwiftUI

Design Systems

iOS Architecture

REST API integration

Unit testing

CI/CD

Performance optimization

Android knowledge

Tools

Git

Xcode

Job description

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