Senior iOS Application Engineer

About the role

We are seeking a Senior iOS Application Engineer / Consultant to drive the end-to-end lifecycle—from design and development to testing, deployment, and production support—of our mission-critical E-Citations mobile application. Collaborating closely with Product, Engineering, Architecture, Cybersecurity, Infrastructure, and business stakeholders, you will deliver secure, highly reliable, and high-performance mobile capabilities tailored for field operations. This role demands deep, hands-on .NET MAUI/iOS engineering expertise, strong problem-solving capabilities, and the autonomy to deliver complex enhancements within a fast-paced enterprise environment.

Responsibilities

• Design, build, enhance, and maintain the E-Citations iOS application leveraging .NET MAUI, C#, and XAML, incorporating native iOS APIs where necessary.
• Architect robust offline functionality, covering local storage, data caching, background sync, retry patterns, conflict resolution, and seamless offline/online data reconciliation.
• Securely integrate with REST/GraphQL APIs, .NET backend services, Azure cloud environments, relational databases, and core enterprise systems.
• Build and support Bluetooth/BLE integrations, focusing specifically on Zebra ZQ-series mobile printers, connection recovery, and comprehensive printer status/error handling.
• Implement camera utilities, photo capture, barcode scanning, OCR, document scanning, and identity-related workflows via .NET MAUI and native iOS features.
• Enforce secure authentication and top-tier data protection protocols using OAuth 2.0, OIDC, JWT, Keychain, advanced encryption, and certificate pinning.
• Execute unit, integration, regression, UI, and performance testing while resolving complex connectivity, integration, and live production bugs.
• Facilitate CI/CD pipelines, automated builds, code signing, provisioning profiles, release workflows, and application telemetry.
• Actively engage in Agile ceremonies, code reviews, technical demonstrations, release planning, and comprehensive documentation creation.

Requirements

• Extensive hands-on experience building enterprise-grade mobile applications with .NET MAUI and C# targeting iOS.
• Strong command of XAML, .NET MAUI Community Toolkit, .NET MAUI Essentials, MVVM, Clean Architecture, and Dependency Injection.
• Proven expertise in offline-first design (SQLite, local caching, synchronization logic) and backend integrations (REST/GraphQL, .NET/ASP.NET Core, Azure, SQL Server).
• Direct experience with Bluetooth/BLE, Zebra mobile printers (ZQ-series), and corresponding SDKs.
• Deep knowledge of enterprise security practices (OAuth, JWT, encryption, Keychain) and Mobile Device Management (MDM) platforms such as Microsoft Intune, Workspace ONE/AirWatch, or Jamf.
• Proficiency with Git, GitHub/GitLab, CI/CD systems (Jenkins/Bitrise), App Store Connect, APNs, telemetry tools, and crash reporting suites.

Qualifications

• Background supporting public-sector, public-safety, transportation, enforcement, citation, or demanding field-workforce applications involving mobile printing, secure integration, and mission-critical reliability.

Skills

• testing
• security
• enterprise
• application
• data
• ios
• integration
• design
• architecture
• mobile