Senior iOS Engineer

ION Group

New York, NY • 21m ago • On-site

Senior

On-site

150,000 - 200,000 USD/yr

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Quick Facts

  • Role: Senior iOS Engineer (iOS)

  • Focus: Building and maintaining commercial-grade iOS applications for financial services clients

  • Location: On-site (WTC area, New York City)

Description

You will design and develop robust iOS applications and help ship new features by collaborating with product, UI/UX, and backend teams. The role emphasizes clean, maintainable Swift code (with architectural best practices like MVVM), quality through unit/integration testing, and ongoing performance troubleshooting. You will also stay current with mobile technologies and trends.

Responsibilities

  • Develop and maintain robust iOS applications using Swift and SwiftUI/ UIKit

  • Collaborate with product managers, UI/UX designers, and backend developers to define and ship new features

  • Write clean, maintainable, and efficient code following best practices and architectural patterns such as MVVM

  • Perform unit and integration testing

  • Troubleshoot, debug, and optimize application performance

  • Stay up-to-date with the latest mobile technologies, frameworks, and industry trends

Requirements

  • 8+ years of experience designing and building complex, commercial-grade software systems

  • Proficiency in Swift and experience with native iOS development tools such as SwiftUI and/or UIKit

  • Experience with SwiftData and Swift Concurrency (async/await)

  • Experience in financial services

  • Familiarity with integrating RESTful APIs and third-party libraries

  • Experience with agile development methodologies

  • Knowledge of CI/CD pipelines for mobile applications

  • Understanding of mobile UI/UX principles and best practices

  • Excellent communication skills to influence both technical and non-technical stakeholders

Benefits

  • Discretionary bonus based on company and individual performance

  • Paid holidays

  • 401(k)

  • Comprehensive medical, dental, and vision coverage

  • Life insurance, short- and long-term disability

  • Commuter FSA

  • Family Building Benefits

  • Salary range: $150,000–$200,000 (based on experience and skills)

  • Total rewards program supporting employee well-being and professional growth

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