iOS Mobile Trading Engineer — Real-Time FinTech UI

HireChain Ltd; New York, Northern (NY, KY); Hybrid; USD 185,000 - 300,000; Full time

Benefits offered by this job

Health & wellness insurance

Generous vacation

Retirement plan with employer match

Equity

Job summary

Fullstack.Trade is seeking a Mobile Engineer to help build the next generation mobile trading app. You will create an iOS app that handles live market data, complex orders, and multi-venue execution with real-time performance and secure on-device signing.

In this role, you will craft gesture-driven interfaces, visually rich charts, and wallet integrations while ensuring a robust architecture and scalable client-side state.

Qualifications

• 3+ years shipping iOS applications in Swift, fintech, trading, or real-time data environments.
• Strong eye for UI/UX; wireframing, prototyping, and design decisions.
• Shipped apps through the Apple App Store; full release cycle knowledge from provisioning to production.
• Deep understanding of iOS performance, memory management, and background processing.
• Experience building apps that handle live data streams; manage WebSocket connections and keep UI responsive.
• Able to make architectural decisions and lead feature development in a team.
• Must be authorized to work in the United States.

Responsibilities

• Design features that stay responsive during market volatility and handle real-time data efficiently.
• Build gesture-driven mobile UI that delivers high information density without overwhelming small screens.
• Develop high-performance, real-time visualizations and charts for trading insight.
• Integrate with mobile wallets and biometric authentication; secure key management on-device.
• Layout and integrate REST APIs and WebSocket streams with robust client-side caching.
• Configure and maintain CI/CD pipelines for automated builds, previews, testing, and seamless rollbacks.

Skills

Production iOS Experience

Design Sensibility

App Store Experience

Platform Knowledge

Real-Time Systems

Ownership Mindset

Work Authorization

Job description

Fullstack.Trade is seeking a Mobile Engineer to help build the next generation mobile trading app. You will create an iOS app that handles live market data, complex orders, and multi-venue execution with real-time performance and secure on-device signing.

In this role, you will craft gesture-driven interfaces, visually rich charts, and wallet integrations while ensuring a robust architecture and scalable client-side state.