iOS Developer

Senior iOS Engineer (Freelance Contract) | Banking Domain | Amsterdam

We are engaging a Senior iOS Engineer (4–10 years) on a freelance contract to support a mission-critical banking platform within a highly regulated European environment. This is a long-term engagement with strong renewal potential.

Contract Details:

• Duration: Initial 6–12 months
• Renewal: Extendable every 6 months based on performance and delivery
• Engagement Model: Freelance / Contract

Technical Requirements (Must-Have)

• Proven delivery of production-grade iOS applications in complex environments
• Expert-level experience with Swift, SwiftUI, UIKit, Cocoa Touch
• Strong command of concurrency (GCD, Swift Concurrency) and Xcode tooling
• Solid grounding in SOLID principles, Clean Architecture, and scalable mobile design
• Hands-on experience with REST/JSON and secure networking (HTTPS/TLS)
• Dependency management using Swift Package Manager and/or CocoaPods
• Strong Git-based workflows (branching strategies, peer reviews, CI alignment)
• Emphasis on secure coding practices and unit testing

Cloud & DevOps Exposure

• Integration with Azure mobile backends:
• App Service, Azure Functions, API Management, Storage
• Familiarity with mobile-specific cloud integration patterns
• Experience with CI/CD pipelines for automated build, test, and deployment

Domain Knowledge (Good to Have)

• Exposure to European banking regulations such as GDPR and PSD2

Professional Competencies

• Strong analytical and problem-solving capability
• Clear communication with cross-functional engineering and product teams
• Comfortable operating independently at senior engineering level

Work Model Options

• Complete Onsite
• Hybrid (2 days Work From Home)

Location: Amsterdam, Netherlands

Language Requirement: Dutch – Mandatory

Rate Information

• Candidate Rate: €55–56 per hour (negotiable)

This role offers long-term continuity, modern iOS engineering challenges, and exposure to secure, large-scale banking systems built on cloud-native architecture.

Senior freelance iOS engineers with strong architectural depth and financial-domain exposure are encouraged to apply or share suitable referrals.