Mobile Application Developer

Encore Technical Solutions Inc.; Toronto; On-site; CAD 90,000 - 130,000; Full time

Job summary

Encore Technical Solutions Inc. is seeking a React Native App Developer to build and support field and workforce mobile apps on a modern, Azure cloud platform.

You’ll own the mobile codebase end-to-end, collaborating with product, design, and backend teams to design, test, release, and operate in production. The role emphasizes shipping React Native apps (Expo preferred), strong TypeScript skills, and native iOS auth flows, with integration to REST API gateways and a design system.

Qualifications

• Proven track record shipping React Native (Expo preferred) apps to a store or MDM.
• Strong TypeScript expertise.

Responsibilities

• Design, build, and ship field and workforce apps using React Native / Expo (iOS first; Android as needed).
• Own the mobile codebase through its full lifecycle — implementation, review, testing, release, and production support.
• Implement enterprise sign-in (MSAL/Entra-style) and handle session, refresh, and sign-out on-device.
• Integrate with backend APIs through an API gateway.
• Build within an existing design system, implementing loading, empty, error, and offline states.
• Design for real field conditions: one-handed use, gloves, poor network — with clear status when APIs are slow or unavailable.
• Write and maintain automated tests for critical flows; debug on physical devices.
• Ship through an approved release pipeline (EAS, TestFlight, or MDM).

Skills

React Native

TypeScript

iOS native auth

REST API gateway

Design system debugging

Tools

Expo

TestFlight

MDM

Job description

Our enterprise client is looking for a React Native App Developer to build and support field/workforce mobile applications on a modern, cloud-native Azure platform.

You’ll own the mobile codebase end-to-end: design, build, test, release, and support in production, working closely with product, design, and backend teams.

What you’ll do:

• Design, build, and ship field and workforce apps using React Native / Expo (iOS first; Android as needed)
• Own the mobile codebase through its full lifecycle — implementation, review, testing, release, and production support
• Implement enterprise sign-in (MSAL/Entra-style) and handle session, refresh, and sign-out on-device
• Integrate with backend APIs through an API gateway
• Build within an existing design system, implementing loading, empty, error, and offline states
• Design for real field conditions: one-handed use, gloves, poor network — with clear status when APIs are slow or unavailable
• Write and maintain automated tests for critical flows; debug on physical devices
• Ship through an approved release pipeline (EAS, TestFlight, or MDM)

Must have:

• Proven track record shipping React Native (Expo preferred) apps to a store or MDM
• Strong TypeScript
• Experience with native auth flows on iOS
• Comfortable working against a REST API gateway
• Experience working within a design system and debugging on physical devices

Nice to have:

• Prior work on field/workforce-facing apps