Senior iOS Engineer - Enterprise Offline-First & Secure

TheCorporate LLC; New York (NY); On-site; USD 120,000 - 150,000; Full time

Job summary

TheCorporate LLC is seeking a Senior iOS Application Engineer/Consultant to lead design, development, and production support for the E-Citations iOS app on a 1-year engagement. Work closely with Product, Eng, Cybersecurity, and Infra to deliver secure, high-performance mobile functionality using .NET MAUI, C#, XAML, and native iOS APIs.

Responsibilities include offline-first storage with SQLite, REST/GraphQL integration, Bluetooth/BLE with Zebra printers, and CI/CD collaboration, prioritizing

Qualifications

• Extensive hands-on experience developing enterprise mobile apps using .NET MAUI and C# for iOS.
• Strong experience with XAML, MVVM, Clean Architecture, and dependency injection.
• Experience building offline-first mobile apps with SQLite, caching, and synchronization.
• Hands-on Bluetooth/BLE experience with Zebra printers and Zebra SDK.
• Strong experience integrating mobile apps with REST/GraphQL, .NET/ASP.NET Core, Azure, SQL Server.
• deep knowledge of enterprise security: OAuth, OIDC, JWT, Keychain, encryption, pinning.

Responsibilities

• Design, develop, enhance, and support the E-Citations iOS app using .NET MAUI and C#.
• Build secure, scalable, high-performance mobile functionality with .NET MAUI, XAML, and native iOS APIs.
• Develop offline-first capabilities: SQLite, caching, background sync, retry, conflict resolution.
• Integrate with REST/GraphQL APIs, .NET backend services, Azure, databases, and enterprise systems.
• Implement Bluetooth/BLE integrations with Zebra printers, including robust recovery.
• Implement secure authentication and data protection (OAuth 2.0, JWT, Keychain).
• Develop responsive, accessible UIs for rapid field operations.
• Perform testing and troubleshoot issues; support CI/CD pipelines and releases.
• Document features, integrations, deployment, and operations.

Skills

NET MAUI

C#

iOS

XAML

MVVM

Clean Architecture

Dependency Injection

REST/GraphQL

Azure

SQL Server

Security Best Practices

OAuth/OIDC/JWT

Tools

Zebra SDK

Zebra ZQ-series

Job description

TheCorporate LLC is seeking a Senior iOS Application Engineer/Consultant to lead design, development, and production support for the E-Citations iOS app on a 1-year engagement. Work closely with Product, Eng, Cybersecurity, and Infra to deliver secure, high-performance mobile functionality using .NET MAUI, C#, XAML, and native iOS APIs.

Responsibilities include offline-first storage with SQLite, REST/GraphQL integration, Bluetooth/BLE with Zebra printers, and CI/CD collaboration, prioritizing