iOS Developer

Mobile Engineer (iOS) \| Fintech \| High-Performance Trading App

Location:

Manhattan, NYC

On-site

Salary:

$185,000 - $275,000

Industry:

Crypto

This position is not available for c2c or Visa Sponsorship/Transfer.

We’re partnering with a well-funded, fast-growing company building a next-generation mobile trading platform—designed to deliver a full professional trading experience directly on mobile.

This is not a simplified app. Think real-time market data, complex order execution, and multi-venue trading, all optimized for a seamless mobile experience.

What You’ll Be Working On:

• Building high-performance iOS applications in Swift that handle real-time market data and remain responsive during periods of high volatility
• Designing gesture-driven, information-dense interfaces that bring the power of trading terminals to mobile without compromising usability
• Developing interactive charting and data visualizations to support real-time decision making
• Integrating mobile wallets, biometrics, and secure transaction workflows
• Working with REST APIs \& WebSocket streams, managing client-side state and real-time synchronization
• Contributing to CI/CD pipelines, automated testing, and release processes

What They’re Looking For:

• 3\+ years of experience building and shipping production iOS apps (Swift)
• Experience with real-time data systems (WebSockets, streaming, live updates)
• Strong UI/UX instincts with experience in prototyping and designing mobile interfaces
• Solid understanding of iOS performance, memory management, and background processing
• Experience shipping apps through the App Store lifecycle
• Someone who takes ownership and is comfortable making architectural decisions
• Thrives in a collaborative, in-person engineering environment

Additional Info:

• Must be authorized to work in the U.S.