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Wallet icon Coin icon Rate 5 200 € - 6 200 € / month info

info The reward is calculated upon delivery of 20 MD per month (1MD=8h)

Timer icon Form of cooperation Freelance: Full-time
Briefcase icon Sector Cyber security
Location icon Location Bratislava, 90% Remote
Project duration 6 months with the possibility of extension
Period of cooperation 01.07.2026 - 31.12.2026
Start date 01.07.2026 ASAP or by agreement
Project duration 6 months with the possibility of extension
Period of cooperation 01.07.2026 - 31.12.2026
Start date 01.07.2026 ASAP or by agreement

Technology

  • SCRUM
  • GIT
  • iOS
  • Swift

Languages

  • English flag English - active, B2/C1/C2
  • Slovak or Czech flag Slovak or Czech - native

Project description

  • collaboration on multiple security-oriented mobile projects
  • application 1:
    • development and refactoring of an existing security application
    • includes:
      • the application's network layer
      • VPN client functionality
      • DNS resolving
      • communication with server infrastructure
      • refactoring of the existing solution
  • application 2:
    • development of a new iOS security application based on:
      • Kotlin Multiplatform (KMP)
        • native iOS components
      • Safari extensions
      • integration of native code with the multiplatform part
    • collaboration primarily on:
        native iOS parts
      • integration with iOS API
      • interaction with native system components
  • tasks and responsibilities:
    • development of native iOS applications in Swift
      • native iOS applications in Swift
    • design and implementation of modular code
    • participation in refactoring of existing solutions
    • integration of network and security functionalities
    • work with:
      • VPN layer
      • DNS resolving
      • communication with servers
    • collaboration with the internal R&D team
    • code review and code quality improvements
      • experimentation and prototyping of new solutions
    • collaboration with Product Management and Support teams
  • technologies:
    • Must-have stack
      • Swift
      • iOS SDK / iOS API
      • Git
      • networking / communication layers
    • Project stack
      • VPN client architecture
      • DNS resolving
      • server communication
      • Kotlin Multiplatform (KMP)
      • Safari Extensions
      • SwiftUI / UIKit
      • SPM / CocoaPods
    • Nice-to-have stack
      • Kotlin
      • Coroutines / Flow
      • Compose Multiplatform
      • Koin / Hilt
      • Jenkins
      • Jira / Confluence
      • automated testing
      • C/C++
  • collaboration possible in a hybrid mode ON-SITE / REMOTE, as agreed on the project [Bratislava]
  • final remuneration depends on the candidate's experience and the selection process

Project requirements

  • min. 4+ years of experience with iOS development and Swift development
  • excellent knowledge of:
    • iOS API
      • native iOS development
  • experience with:
    • networking layer
    • client-server communication
    • Git
    • code review
  • ability to:
    • independent development
      • experiment and troubleshoot
       
  • knowledge of English language at a communicative level (min. B2)
     
  • a big advantage:
    • Kotlin Multiplatform (KMP)
    • security applications
    • VPN / DNS networking
    • CI/CD knowledge
    • SwiftUI / UIKit
    • C/C++
    • automated testing
       
  • communication skills
  • proactivity
  • independent and creative thinking
  • team player

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