Fullstack Mobile Developer (iOS Swift/SwiftUI/NestJS)

Resonaite Inc.; Markham; On-site; CAD 83,000 - 124,000; Part time

Job summary

Resonaite Inc. in Markham is seeking a contract-based Software Developer to design, build, and maintain native iOS applications using Swift and SwiftUI, while also developing backend APIs with NestJS, Node.js and TypeScript.

The role involves integrating mobile apps with enterprise systems, implementing secure data flows, and collaborating across Product, Architecture, and DevOps teams. Initial engagement is 12 months, location is Markham, Ontario.

Qualifications

• Strong, recent production experience with Swift.
• Strong hands-on experience with SwiftUI.
• Experience delivering native iOS applications into production.
• Strong Node.js and TypeScript.
• REST API development and systems integration experience.
• Authentication/authorization and secure API integration experience.
• Experience supporting production applications.

Responsibilities

• Design, develop and maintain native iOS applications using Swift and SwiftUI.
• Build reusable SwiftUI components and implement modern iOS application architecture.
• Develop and maintain backend services and APIs using NestJS, Node.js and TypeScript.
• Build integrations between iOS applications, backend services and enterprise systems.
• Implement authentication, API integration, error handling and secure data flows.
• Develop and consume RESTful APIs.
• Troubleshoot application and integration issues across the iOS and backend layers.
• Write unit/integration tests and participate in code reviews.
• Work with Product, Architecture, DevOps and other engineering teams through development and production support.

Skills

Swift

SwiftUI

NestJS

Node.js

TypeScript

REST APIs

Authentication

Tools

Xcode

TestFlight

Azure Container Apps

APIM

Key Vault

Managed Identity

Job description

Our client is seeking contract based Software Developer with strong experience building native iOS applications using Swift and SwiftUI, combined with solid backend development expertise in NestJS, Node.js and TypeScript. The role will contribute to native iOS application development while also supporting backend APIs and integrations connecting the mobile application with enterprise platforms and services.

Location: 4d/week Markham

Duration: 12 months

Key Responsibilities

• Design, develop and maintain native iOS applications using Swift and SwiftUI.
• Build reusable SwiftUI components and implement modern iOS application architecture.
• Develop and maintain backend services and APIs using NestJS, Node.js and TypeScript.
• Build integrations between iOS applications, backend services and enterprise systems.
• Implement authentication, API integration, error handling and secure data flows.
• Develop and consume RESTful APIs.
• Troubleshoot application and integration issues across the iOS and backend layers.
• Write unit/integration tests and participate in code reviews.
• Work with Product, Architecture, DevOps and other engineering teams through development and production support.

Experience

• Strong, recent production experience with Swift.
• Strong hands-on experience with SwiftUI.
• Experience delivering native iOS applications into production.
• Strong Node.js and TypeScript.
• REST API development and systems integration experience.
• Authentication/authorization and secure API integration experience.
• Experience supporting production applications.

Nice to Have

• Azure Container Apps, APIM, Key Vault or Managed Identity.
• CI/CD for iOS and backend services.
• Xcode, TestFlight and enterprise/MDM deployment.
• Application Insights or similar observability tooling.