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Job description
As a Mobile Engineer at Fullstack, you will be part of building the next generation mobile trading app for the future of finance. This is a full featured trading experience, not a simplified pocket app. Features include live market data, complex order types, and multi venue execution on mobile. You will tackle challenges like maintaining synchronised real time price feeds, bringing the power of professional trading terminals to a mobile form factor, and building systems that perform under highly volatile market conditions.
What You’ll Build & Solve
iOS App Development: Design features that stay responsive during market volatility and handle real-time data efficiently.
Trading Interface: Build gesture driven mobile UI that delivers the information density of professional trading terminals without overwhelming small screens, while preserving full functionality for power users.
Data Visualization: Develop high-performance, interactive charts and real-time visualizations that help users make informed trading decisions.
Wallet Integration: Build native integrations with mobile wallets and biometric authentication. Handle transaction signing and secure key management on-device.
System Architecture: Integrate complex REST APIs and WebSocket streams while managing robust client-side cached state.
DevOps & Quality: Configure and maintain CI/CD pipelines for automated builds, previews, testing, and seamless rollbacks.
What You Bring
Production iOS Experience: 3+ years shipping iOS applications in Swift, ideally in fintech, trading, or real-time data environments.
Design Sensibility: Strong eye for UI/UX. Comfortable wireframing, prototyping, and making design decisions. Understand information hierarchy and gesture-driven interfaces.
App Store Experience: Shipped apps through the Apple App Store. Understand the full release cycle from provisioning to review to production.
Platform Knowledge: Deep understanding of iOS performance characteristics, memory management, and background processing.
Real-Time Systems: Experience building apps that handle live data streams. Know how to manage WebSocket connections, handle reconnection, and keep UI responsive.
Ownership Mindset: Comfortable making architectural decisions and leading feature development.
Work Authorization: Must be authorized to work in the United States.
Ownership
Health & Wellness (Comprehensive medical, dental, and vision insurance with HSA options.)
Generous paid vacation and holidays
Retirement plan with employer match.
Culture (Flat, engineering-driven environment where the best idea wins.)
Compensation & Package
Base Salary + Equity
Ownership
Health & Wellness (Comprehensive medical, dental, and vision insurance with HSA options.)
Generous paid vacation and holidays
Retirement plan with employer match.
Culture (Flat, engineering-driven environment where the best idea wins.)
Interview Process
Founder / CEO Interview
Take Home Test
Technical Interview Onsite coding interview
Final Interview Hiring Criteria
3+ years shipping iOS applications in Swift, ideally in fintech, trading, or real-time data environments.
Strong eye for UI/UX. Comfortable wireframing, prototyping, and making design decisions. Understand information hierarchy and gesture-driven interfaces.
Shipped apps through the Apple App Store. Understand the full release cycle from provisioning to review to production.
Deep understanding of iOS performance characteristics, memory management, and background processing.
Experience building apps that handle live data streams. Know how to manage WebSocket connections, handle reconnection, and keep UI responsive.
Location
New York, US (Office) - Must be open to working fully office based in NYC (Paradigm Offices)
$185K - $300K
Fullstack.Trade
Multi asset margin and fixing the fragmentation problem in crypto by creating the only front end you'll ever need.
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Who can apply
Review the original listing for work authorization, qualifications and employer requirements.