iOS Developer

Role : IOS Swift Developer

Location : New York, NY - 3 days a week onsite

Contract : 6-12 Months

Interview : On site interview mandatory

LOCAL ONLY

Must have a one degree from US - Bachelors or Masters from an accredited college in the US**

Investment Banking OR Financial Service experience required**

Heavy Investment Banking background

Investment Banking \& High-Performance Cloud Solutions

Position Summary

IB Domain is preferable, Cloud AWS backends. High performance responsive applications.

We are seeking an exceptionally skilled

IOS Developer

with deep expertise in Swift, high-performance mobile architectures, and AWS cloud-native backends. In this role, you will lead the design, development, and optimization of enterprise mobile applications servicing institutional clients, investment bankers, and high-frequency traders.

The ideal candidate thrives at the intersection of ultra-low latency mobile engineering and complex financial systems—building responsive UIs capable of processing thousands of market ticks per second while maintaining enterprise-grade security and sub-millisecond thread execution.

Key Responsibilities

• Architecture \& Native Development:

Architect, build, and maintain mission-critical native iOS applications using modern Swift (Swift 5\.9\+, Combine, SwiftUI, UIKit) adhering to clean patterns (MVVM-C, The Composable Architecture).

• High-Throughput UI Rendering:

Engineer high-frequency, responsive interfaces handling real-time tick data, live order book depth, and interactive portfolio analytics without main-thread blocking or frame drops.

• AWS Integration \& Networking:

Implement robust, resilient networking layers utilizing the AWS SDK for Swift, WebSockets, RESTful APIs via AWS API Gateway, GraphQL (AWS AppSync), and intelligent offline caching.

• Concurrency \& Memory Tuning:

Utilize Xcode Instruments (Time Profiler, Allocations, Leaks) to eliminate retain cycles, optimize memory usage, manage Swift Actors/async-await pipelines, and ensure maximum execution speed.

• Financial-Grade Security:

Implement end-to-end security protocols including OAuth2/OIDC via AWS Cognito, biometrics (FaceID/TouchID), hardware-backed Keychain storage, certificate pinning, and zero-trust encryption standards.

• DevOps \& Quality Assurance:

Drive automated testing strategies (XCTest, XCUITest) and continuous deployment workflows via Fastlane, GitHub Actions, and AWS Device Farm.

Required Qualifications

• 6\+ Years

of professional native iOS development using Swift.

• Investment Banking / Financial Domain Experience:

Direct experience developing capital markets, wealth management, or high-frequency trading platforms (handling execution order books, streaming FX/equities/bonds data, portfolio risk analytics).

• Advanced Concurrency Mastery:

Expert knowledge of Swift Concurrency (async/await, TaskGroup, Actors) and Grand Central Dispatch (GCD) for lock-free, thread-safe data structures.

• AWS Cloud Infrastructure:

Proven experience integrating iOS applications with AWS services (AWS SDK for Swift, API Gateway, AppSync, Cognito, Lambda, S3, DynamoDB).

• Reactive Frameworks:

Deep experience with Combine or RxSwift for complex, high-volume event stream handling.

• Instruments \& Profiling:

Advanced proficiency with Xcode Instruments for tracking allocations, CPU bottlenecks, leaks, and energy impact.

Preferred Qualifications

• Hands-on experience with streaming message protocols (WebSockets, gRPC, Protobuf).
• Solid understanding of financial compliance requirements (Client, SEC, GDPR) and secure audit logging.
• Custom graphics rendering experience using Metal, Core Graphics, or Swift Charts for custom market indicators.