IOS Developer

Ethereum Technologies LLC; Pennsylvania; On-site; USD 92,000 - 131,000; Full time

Job summary

Ethereum Technologies in Westchester, PA is seeking an IOS Developer to build and maintain native iOS features for large-scale mobile applications. You will work with Swift, SwiftUI and modern architecture patterns to deliver high-quality apps.

The role requires hands-on API integration, testing with XCTest/XCUITest, and close collaboration with design, backend, QA and release teams in an Agile environment. On-site work in Westchester, PA is expected.

Qualifications

• Proficient in Swift with native iOS SDKs.
• Strong hands-on experience with SwiftUI and modular UI design.
• Experience implementing MVVM, Coordinator patterns and Clean Architecture.

Responsibilities

• Develop, enhance, and maintain native iOS features for large-scale mobile applications.
• Integrate GraphQL and REST APIs with mobile apps.
• Write unit, integration, and UI tests using XCTest/XCUITest.
• Collaborate with product, design, backend, QA and release teams.

Skills

Swift

SwiftUI

MVVM

Coordinator

Clean Architecture

Modular design

XCTest

XCUITest

GraphQL

REST APIs

API authentication

Tools

Git

CI/CD

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Job Title:IOS Developer
Location: Westchester, PA
Duration: 12 Months + Extension
Bill Rate: $81/hour
Job Type: W-2, 1099, C2C
Client: To Be Discussed Later
Work Authorization: US-Citizen, H-1B, OPT-EAD, GC-EAD

Job Description:

Strong hands-on experience with Swift and native iOS SDKs.

Develop, enhance, and maintain native iOS features for large-scale mobile applications.

Hands-on experience with SwiftUI, reusable UI components, navigation, and responsive layouts.

Integrate GraphQL and REST APIs with mobile applications.

Experience handling API authentication, error handling, data mapping, caching, and asynchronous data flows.

Strong understanding of MVVM, Coordinator, Clean Architecture, and modular application design.

Experience writing unit, integration, and UI automation tests using XCTest and XCUITest.

Strong knowledge of iOS application lifecycle, background execution, privacy permissions, and Apple platform guidelines.

Optimize application performance, stability, security, accessibility, and user experience.

Experience with analytics, logging, experimentation, and feature flags.

Troubleshoot and resolve complex production issues involving mobile applications and API integrations.

Experience with Git, pull requests, code reviews, and CI/CD pipelines.

Collaborate with product, design, backend, middleware, QA, and release teams.

Participate in Agile development, release management, and continuous improvement activities.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.