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Gismart
Gismart
201 – 500 Employees
B2CMediaWellness
Gismart develops consumer mobile apps spanning wellness, health, utilities, and music. Its B2C products are designed to make personal wellness and healthy habits more accessible through interactive, easy-to-use technology, while also serving broad consumer needs in music and everyday utilities. The company reports more than 1 billion downloads worldwide and over 30 million monthly active users.
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iOS Developer, Radiotech — Gismart (Worldwide Remote)

Join Gismart as an iOS Developer helping modernize Radiotech’s music-learning applications. Build scalable Swift architecture while supporting the migration to Kotlin Multiplatform.

RemoteFull-timeMiddleSeniorEnglish RequirediOS EngineerSoftware Engineer
AndroidGraphQLiOSKotlinSwift

Description

  • Build, maintain, and modernize existing iOS applications with Swift, SwiftUI, and UIKit
  • Shape a scalable, modular, and maintainable architecture for the iOS codebase
  • Create efficient technical solutions that are designed for reliable testing
  • Prepare the applications for a phased transition to Kotlin Multiplatform
  • Move selected business logic and shared components to Kotlin Multiplatform
  • Partner with Android and other engineers on shared mobile architecture and APIs
  • Investigate technical challenges and recommend suitable architectural approaches
  • Resolve complex issues while improving application performance and memory efficiency
  • Review code and help maintain clear technical documentation
  • Maintain and enhance continuous integration, delivery, and release processes
  • Work with Product Managers on technical design, planning, and estimation
  • Recommend improvements to the product and engineering practices
  • Use AI coding assistants and engineering agents such as Cursor, Claude Code, and Codex

Requirements

  • At least four years of professional iOS development experience
  • Advanced proficiency with Swift and its modern language features
  • Strong experience with Swift Concurrency, including async/await, and reactive programming such as Combine
  • Production experience developing with both SwiftUI and UIKit
  • Solid knowledge of iOS architecture, the application lifecycle, and platform frameworks
  • Experience with MVVM, Clean Architecture, modular design, and reusable components
  • Ability to independently design and deliver complex technical solutions
  • Experience with REST APIs, GraphQL, asynchronous networking, and multithreading
  • Familiarity with Xcode, Instruments, Swift Package Manager, CocoaPods, and Fastlane
  • Understanding of App Store submission, signing, provisioning, TestFlight, and release management
  • Experience using feature flags, remote configuration, and A/B testing
  • Experience with CI/CD pipelines and automated testing
  • Hands-on experience using AI coding assistants and engineering agents in daily development

Benefits

  • Remote-first environment with flexible working hours
  • Option to work remotely worldwide or from a corporate hub
  • Full coworking reimbursement in Ukraine outside Kyiv, plus 50% coverage worldwide
  • Complimentary office lunches at company hubs
  • Twelve public holidays annually for employees outside Ukraine or Poland
  • Full compensation for sick leave
  • Partial reimbursement for medical insurance, sports activities, and therapy
  • Company equipment or coverage for maintaining personal work tools
  • 70% reimbursement for professional development courses
  • Full coverage of corporate English classes
  • Eighteen working days of paid vacation plus three personal days annually
  • One additional vacation day for each year with Gismart
  • Corporate events and team-building activities across Gismart hubs

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