Demo

Senior iOS Developer

Synergy Interactive
Chicago, IL Full Time
POSTED ON 10/1/2025
AVAILABLE BEFORE 1/23/2026

About the job


Job Description

We’re looking for a talented iOS Developer who is passionate about building high-quality, user-friendly mobile applications. In this role, you will have the opportunity to develop an iOS app from scratch, shaping both its technical foundation and user experience. You’ll work closely with designers, product managers, and backend engineers to bring ideas to life and create seamless mobile experiences for our users.


What You’ll Do

  • Design, develop, and deploy an iOS application from the ground up using Swift.
  • Work closely with cross-functional teams to translate product requirements into scalable, high-performance code.
  • Ensure application performance, quality, and responsiveness through testing and debugging.
  • Implement intuitive user interfaces and engaging interactions.
  • Integrate third-party APIs and backend services to enhance app functionality.
  • Stay up to date with the latest iOS development trends, tools, and best practices.
  • Participate in code reviews and contribute to a culture of continuous improvement.


What We’re Looking For

  • We recognize that talent comes in many forms, and we encourage you to apply even if you don’t meet 100% of the criteria below. If you’re excited about this role and believe you can contribute, we’d love to hear from you.Strong understanding of idiomatic Swift design patterns and iOS libraries.
  • Experience working with RESTful APIs and WebSockets to integrate backend services.
  • Deep understanding of Core Graphics, Core Image, and AVFoundation for efficient rendering, transformation, and playback of images and video.
  • Expertise in iOS display pipelines, including how CALayers, Core Animation, and rendering loops interact with the GPU for optimal performance.
  • Strong grasp of the iOS event model, including RunLoop, GCD, and how UIKit propagates touch, gesture, and UI updates across the main thread.
  • Knowledge of Apple’s App Store submission process and guidelines.
  • Familiarity with version control systems like Git.
  • Ability to write clean, maintainable, and efficient code.
  • Strong problem-solving skills and a growth mindset.
  • Excellent communication skills and a collaborative team spirit.

Bonus Points

  • Prior experience in a startup or fast-paced environment.
  • Exposure to CI/CD pipelines for mobile apps.

Salary : $110,000 - $170,000

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