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Achievement: Pair Extraordinairex3Achievement: QuickdrawAchievement: Pull Sharkx4Achievement: Arctic Code Vault Contributor

Achievements

Achievement: Pair Extraordinairex3Achievement: QuickdrawAchievement: Pull Sharkx4Achievement: Arctic Code Vault Contributor

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rpanichkin/README.md

Hey 👋

I'm Roman, a Senior iOS Engineer in Auckland, New Zealand.

Ten years on one product — Termius, a security-focused SSH client with hundreds of thousands of users. Took the iOS app from Objective-C/MVC to 71% Swift with TCA, ~3,000 unit tests, and SPM modularization.

Security side: Secure Enclave, FIDO2/WebAuthn, E2E encryption. Comfortable in legacy Obj-C when needed.

🛠 Skills

  • iOS: Swift, Objective-C, SwiftUI, UIKit, Combine, Swift Concurrency (async/await, actors), CoreData
  • Architecture: TCA (Composable Architecture), MVVM, Coordinator, Unidirectional data flow, DI (Swinject, TCA Dependencies)
  • Security: Secure Enclave, FIDO2/WebAuthn, E2E encryption, SRP protocol, libsodium, Keychain Services
  • Networking: REST, gRPC (swift-protobuf, SwiftNIO), WebSocket, SSH/SFTP/Mosh/Telnet
  • Testing: XCTest, Swift Testing, TCA TestStore, protocol-based mocking (~3,000 tests)
  • CI/CD: Bitrise, SPM, Protobuf codegen, CoreData codegen

🔧 Tech Stack

Swift Objective-C SwiftUI UIKit TCA RxSwift Combine CoreData SPM Firebase Sentry

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