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Principal iOS Engineer, New York

ION· Lab49 – Software Engineering
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New York, NY$180k - $200kFull-timePosted 2mo ago

About the role

Principal iOS Engineer to design and deliver flagship wealth management mobile applications for ultra-high-net-worth clients. On-site role in New York, collaborating with product, design, and backend teams to build, maintain, and modernize iOS applications.

Responsibilities

  • Develop and maintain robust iOS applications using Swift and SwiftUI/ UIKit, ensuring optimal performance and responsiveness.
  • Collaborate with product managers, UI/UX designers, and backend developers to define, design, and ship new features.
  • Write clean, maintainable, and efficient code, adhering to best practices and architectural patterns (e.g., MVVM).
  • Perform unit and integration testing to ensure application quality and stability.
  • Troubleshoot, debug, and optimize application performance.
  • Stay up-to-date with the latest mobile technologies, frameworks, and industry trends.

Qualifications

  • 10-12+ years of experience with native iOS development
  • Proficiency in Swift and experience with native iOS development tools such as Xcode, SwiftUI, and UIKit
  • Experience with GitLab/ GitHub
  • Familiarity with integrating RESTful APIs and third-party libraries
  • Understanding of mobile UI/UX principles and best practices to create intuitive and engaging user experiences

Skills

Required:SwiftSwiftUIUIKitMVVMGit (GitLab/GitHub)

Benefits

  • Competitive benefits package including discretionary bonus, paid holidays, a 401(k), and comprehensive medical, dental, and vision coverage. Additional benefits include life insurance, short and long-term disability, Commuter FSA, Family Building Benefits, and more.
Last updated Oct 21, 2026. Interested? Apply on the company site.

About ION

Reinventing the way business is done through automation technology

ION financial software improves decision making, simplifies complicated processes and empowers you by providing the right tools.

automationexecutionimagination
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