Senior iOS Engineer with 6+ years of experience building, shipping, and evolving consumer mobile apps across fintech, healthcare, utilities, and VPN. I care about Apple Human Interface Guidelines, reliability, performance, and clean architecture.

• 📍 Remote (Europe / EMEA / UK / US)
• 💼 Senior iOS Engineer
• 🔗 Website: https://nickswift.dev
• 💬 LinkedIn: https://www.linkedin.com/in/nikolayspiridonov

• 📱 Build iOS apps end-to-end: requirements → implementation → tests → release → production support
• 🧱 Modernize codebases: Objective-C → Swift, UIKit → SwiftUI, legacy → Swift 6
• 🧪 Improve stability and quality: crash reduction, test strategy, regression prevention
• 🤝 Teamwork: mentoring, code reviews, technical interviews

iOS

• Swift, UIKit, SwiftUI, Combine, Swift Concurrency (async/await), GCD
• Core Data, URLSession, Foundation, SnapKit
• XCTest (Unit/UI), Swift Testing, Xcode Instruments
• Architecture: MVVM, Clean Architecture, DI, modularization

Tooling

• Git, CI/CD, Fastlane
• SPM, CocoaPods

Backend / Infra (side projects)

• Vapor, PostgreSQL, Nginx
• Ansible, Bash
• Prometheus, Grafana

InstaVPN / nickswift.dev — Founder & Full-Stack Engineer (Dec 2024 – Present)

• iOS + macOS VPN product focused on clean UX and subscription monetization
• Vapor backend + automated VPN server provisioning with Ansible
• Remote config, push notifications, A/B testing foundations
• Monitoring/alerting with Prometheus + Grafana, plus an internal admin panel

• ✉️ DM me on LinkedIn: https://www.linkedin.com/in/nikolayspiridonov
• 🌐 https://nickswift.dev