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Senior iOS Engineer, New York

ION· Lab49 – Software Engineering
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New York, NY$150k - $200kFull-timePosted 8mo ago

About the role

Senior iOS Engineer at Lab49 (ION Group) in New York City, on-site, full-time. The role focuses on designing and delivering robust iOS applications for financial services clients, collaborating with product, design, and backend teams, and staying current with mobile technologies.

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

  • 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, UIKit, SwiftData, Swift Concurrency (async/await)
  • Experience in financial services
  • Familiarity with integrating RESTful APIs and third-party libraries
  • Experience with agile development methodologies
  • Knowledge of continuous integration and continuous deployment (CI/CD) pipelines for mobile applications
  • Understanding of mobile UI/UX principles and best practices to create intuitive and engaging user experiences
  • Excellent communication skills with the ability to influence both technical and non-technical stakeholders

Skills

Required:SwiftSwiftUIRESTful APIsAgile methodologiesCI/CD for mobile

Benefits

  • discretionary bonus (potential)
  • paid holidays
  • 401(k)
  • comprehensive medical, dental, and vision coverage
  • life insurance
  • short and long-term disability
  • Commuter FSA
  • Family Building Benefits
  • and more (subject to eligibility requirements)
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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