Sr IOS Developer

VIIS Global Inc.; New York (NY); Hybrid; USD 140,000 - 190,000; Full time

Job summary

VIIS Global Inc. in New York City seeks a Sr iOS Developer to design, build, and maintain high-quality iOS applications. You will work across product, design, backend, and QA to deliver features with strong Swift expertise.

The role emphasizes performance, security, and adherence to Apple guidelines, with a hybrid onsite schedule (3 days in the office) and opportunities for ownership and growth.

Qualifications

• Bachelor's degree or equivalent practical experience in CS/SE or related field.
• 6+ years of professional iOS development experience.
• Strong proficiency in Swift and familiarity with Objective-C.
• Experience with Xcode, Swift Package Manager, and Git.
• Solid knowledge of UIKit and/or SwiftUI.
• Experience with REST APIs, JSON, and asynchronous programming.
• Understanding of iOS architecture patterns (MVVM, MVC, VIPER).
• Experience with unit and UI testing frameworks.
• Knowledge of Apple's Human Interface Guidelines.

Responsibilities

• Design and develop iOS applications using Swift and Apple frameworks.
• Build responsive, scalable, and user-friendly mobile interfaces.
• Collaborate with product, design, backend, and QA teams to deliver features.
• Translate requirements into well-structured, maintainable code.
• Integrate RESTful APIs and third-party services.
• Write unit/UI/integration tests to ensure quality.
• Troubleshoot and optimize performance and stability.
• Participate in code reviews and engineering best practices.
• Support releases and ongoing maintenance.
• Stay current with iOS technologies and trends.

Skills

Swift

iOS Development

UIKit/SwiftUI

Xcode

REST APIs

MVVM/MVC/VIPER

Unit/UI Testing

Git

Asynchronous Programming

Objective-C

Education

Bachelor's degree in CS/SE or related field

Tools

Swift Package Manager

Job description

Title: Sr IOS Developer

Location: New York City 3 days/week onsite

Job Description:

We are seeking a skilled iOS/Swift Developer to design, develop, test, and maintain high-quality mobile applications for Apple platforms. The ideal candidate has strong experience with Swift and iOS development, a solid understanding of software engineering principles, and a passion for creating intuitive, reliable, and high-performing mobile experiences.

Key Responsibilities

• Design and develop iOS applications using Swift and Apple development frameworks.
• Build responsive, scalable, and user-friendly mobile interfaces.
• Collaborate with product managers, designers, backend developers, and QA engineers to deliver new features.
• Translate business and technical requirements into well-structured, maintainable code.
• Integrate RESTful APIs, third-party services, and backend systems.
• Write unit tests, UI tests, and integration tests to ensure application quality.
• Troubleshoot, debug, and resolve performance and application issues.
• Participate in code reviews and contribute to engineering best practices.
• Optimize applications for performance, stability, security, and battery efficiency.
• Ensure applications comply with Apple s design guidelines and App Store requirements.
• Support application releases, deployment, and ongoing maintenance.
• Stay current with emerging iOS technologies, tools, and industry trends.

Required Qualifications

• Bachelor s degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
• 6+ years of professional experience developing iOS applications.
• Strong proficiency in Swift and familiarity with Objective-C.
• Experience with Xcode, Swift Package Manager, and Git.
• Solid knowledge of UIKit and/or SwiftUI.
• Experience working with REST APIs, JSON, and asynchronous programming.
• Understanding of iOS architecture patterns such as MVVM, MVC, or VIPER.
• Experience with unit testing and UI testing frameworks.
• Strong understanding of Apple s Human Interface Guidelines.
• Knowledge of memory management, application lifecycle, and performance optimization.

Ability to troubleshoot problems and work effectively