Senior/Middle+ iOS Developer (SwiftUI • Combine)

Wirex • Full-time • Remote (Remote) • 3w ago

We’re looking for a Senior/Middle+ iOS Developer (SwiftUI • Combine)Our new teammate will build a cutting-edge fintech product to make more people aware of new financial instruments.

Who we are:At Wirex, we believe everyone should have access to the benefits of digital currency. We were the first to launch a crypto-enabled debit card, and
we’re still ahead of the game – offering intuitive, secure ways to buy, exchange and spend crypto. We must be doing something right, because more than 6 million people across 130 countries are helping to change the world by using Wirex.

Help us shape the future of digital finance!Type of Cooperation: B2B Contract.What You’ll Be Working On:

— Feature Ownership: Design, build, and deliver robust features using SwiftUI, Combine, and
async/await—adhering to clean architecture principles.— Legacy Modernization: Refactor legacy-heavy codebases, streamline architecture, and integrate scalable services.
— Troubleshooting & Optimization: Tackle complex performance, concurrency, and networking challenges (GCD, actors, WebSockets, background tasks).
— Quality First: Write comprehensive unit and UI tests; contribute to CI/CD pipelines; uphold code quality and maintain green builds.
— Architectural Evolution: Identify system bottlenecks, reduce build times, improve modularization, and lead structural improvements.

Core Requirements:

— 5+ years in iOS development with shipped, production-level apps. Strong command of Swift and SwiftUI; confident working with UIKit when needed.— Deep experience with Combine or (RxSwift-to-Combine); able to explain publishers, demand/back-pressure, and declarative state flows.
— Solid understanding of MVVM, Clean Architecture, Protocol-Oriented Programming, SOLID principles, and Dependency Injection. Able to justify architectural decisions and scale them.
— Proficiency in resolving race conditions and deadlocks using GCD, async/await, and Swift actors.
— Strong grasp of REST, JSON, auth flows, caching, and real-time communication via WebSockets. Performance tuning in low-bandwidth conditions.
— TDD mindset with experience in unit testing and XCUITest. Familiarity with CI tools like GitHub Actions or Bitrise and maintaining code quality gates.
— Clear communicator in English—both written and verbal.

Benefit:

— Premium tariffs for our product.
— Semi-remote work with flexible hours.
— Home office allowance.
— Virtual share options scheme after the probation period.
— Comprehensive medical insurance after the probation period.
— Generous vacation policy: 23 business days of paid leave + 12 paid floating holidays.
— Paid sick leave, Birthday, and Anniversary leave.
— Length of Service Holidays.
— Engaging in online events for learning and enjoyment.
— Coworking with all facilities and parking compensation in Wrocław/Kyiv.