We are looking for a Senior iOS Developer to build and enhance iOS applications with a strong emphasis on performance, stability, and user experience. You will collaborate with designers, product partners, QA, and engineers in a fast-moving environment — apply today to help ship high-quality mobile features.

Responsibilities

- Build and polish iOS features using Swift with a focus on usability and code quality
- Maintain and modernize legacy Objective-C areas while reducing technical debt
- Design solutions for open-ended product and technical challenges together with your team
- Enhance application performance through profiling, analysis, and targeted improvements
- Debug issues and fix defects across the full app lifecycle
- Write unit and integration tests to protect critical behavior and prevent regressions
- Integrate the app with backend services and address integration challenges
- Adopt continuous integration patterns to keep builds fast and reliable
- Use build tools to automate workflows and increase developer productivity
- Collaborate with designers, product owners, QA, and engineers to ship iteratively
- Share ideas, review code, and support a healthy engineering culture
- Work effectively with a globally distributed team across time zones

Requirements

- Bachelor's degree in Computer Science or a related field, or equivalent experience
- 3+ years of experience developing iOS applications with Swift
- Background in maintaining or migrating Objective-C legacy code




- Knowledge of sound software development methodology and the ability to iterate under ambiguity
- Skills in debugging to pinpoint root causes and resolve issues efficiently
- Expertise in performance optimization across profiling, analysis, and tuning of iOS apps
- Proficiency in testing with unit and integration tests to ensure quality
- Competency in solution design to break down open-ended problems into shippable increments
- Showcase of an ownership mindset to self-start, prioritize work, and manage time effectively
- Qualifications in collaboration while working with cross-functional partners in a small team
- Capability to communicate clearly to share ideas and contribute to technical discussions
- English proficiency: B2 (Upper-Intermediate)

Nice to have

- Familiarity with GitHub Actions for building CI workflows
- Understanding of the MVVM architectural pattern and its practical use
- Background in integrating REST APIs within mobile applications
- Flexibility to use UIKit when building interface components
- Proficiency in writing tests with XCTest and XCUITest frameworks

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
- General career opportunities
- Volunteer and community involvement opportunities
- EPAM Employee Groups
- Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn

📌 Senior iOS Developer (Argentina)
🏢 EPAM Systems
📍 Argentina