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)