IOS Senior DeveloperLocation: Washington DC / Milford, OHDuration: FulltimeJob Description:8+ years of iOS experience.Strong in Swift, PassKit, Apple Pay, MapKit, CoreLocation, NearbyInteraction, CoreNFC.Experience in secure coding, API integrations, and CI/CD.Responsibilities:We are looking for an experienced iOS Developer with deep, hands-on expertise in building payments and wallet experiences, location and maps-based features, and proximity/secure interactions using UWB and NFC capabilities on iOS.Key Responsibilities:Build Wallet-integrated experiences using PassKit.Implement Apple Pay flows and secure payment transactions.Integrate with payment gateways and implement validation, error handling, and reconciliation.Develop mapping features using Google Maps SDK and Location Services API.Implement geofencing, background location tracking, and fused location optimization.Build custom map layers, clustering, markers, and real-time route visualizations.Implement UWB-based interactions using NearbyInteraction.Create NFC-based tap interactions using CoreNFC.Write clean, testable Swift code and follow secure architecture principles.BLE experience.Knowledge of payment compliance and secure transaction patterns