iOS Developer

We are looking for a Senior iOS Developer to join the JustMarkets mobile team. You will work on a high-load mobile product with many real-time data updates, complex business logic, and a strong focus on performance and user experience.
Our team has unique expertise in research, analysis, and product development. By relying on technical insights and a data-driven approach, we create disruptive future-defining innovations of the fin-tech industry that remain our basis for success.
Responsibilities

- Develop and improve native iOS applications

- Write clean, reusable and maintainable code

- Build functional and user-friendly interfaces

- Integrate iOS applications with backend services and APIs

- Work with real-time data and complex product features

- Take part in code reviews and technical discussions

- Help improve app performance, stability and user experience

- Prepare iOS features for testing and production together with the team

- Work closely with backend, QA, product and design teams
Requirements

- 5+ years of commercial experience in native iOS development with strong knowledge of Swift and iOS SDK

- Strong hands-on experience with UIKit (code-only, no Storyboards) and modern iOS development practices

- Solid understanding of OOP, POP, SOLID principles and experience with VIP or Clean Architecture

- Experience with asynchronous programming and concurrency using GCD, Swift Concurrency and Combine

- Strong understanding of memory management, including ARC and retain cycles

- Hands-on experience with REST APIs, GraphQL (Apollo iOS) and WebSocket

- Experience with local data storage and iOS security practices, including SQLite/GRDB, Keychain and biometric authentication

- Experience with unit and UI testing using XCTest/XCUITest

- Experience with Git, Swift Package Manager, CI/CD and Fastlane

- Experience with multi-target Xcode projects and application release processes
Will be a plus

- Experience in FinTech or real-time trading applications

- Experience with Firebase and third-party analytics SDKs (Amplitude, AppsFlyer, etc.)

- Experience with advanced iOS features such as App Extensions, deep linking and localization
We offer

- Tax expenses coverage for private entrepreneurs in Ukraine

- Expert support and guidance for Ukrainian private entrepreneurs

- 20 paid vacation days per year

- 10 paid sick leave days per year

- Public holidays as per the company’s approved Public holiday list

- Medical insurance

- Opportunity to work remotely

- Professional education budget

- Language learning budget

- Wellness budget (gym membership, sports gear and related expenses)