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Added 2 hours ago
Senior AI Engineer, MapGPT
Jobgether
Canada
Full-time
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior AI Engineer, MapGPT based in Canada.
Added 3 hours ago
Android Engineer
Guestlist
Engineer, BC
Full-time
A deep understanding of scalable mobile application architecture and idiomatic Android design patterns
Added 3 hours ago
Generalist Engineer
Guestlist
Engineer, BC
Full-time
Client-side mobile development experience (either iOS or Android)
Added 10 hours ago
Android Engineer (Senior-Staff Levels)
Cantina Labs
MB
Full-time
As an Android Engineer at Cantina, you’ll lead the development of innovative, high-performance features - from crafting personalized feeds and immersive custom UIs to empowering bots with…
Added 11 hours ago
Quality Assurance Test Engineer
VySystems
Toronto, ON
Full-time
WE ARE HIRING | QA Engineer | Toronto, ON (Onsite)
Added 14 hours ago
Staff Software Engineer, Qualcomm AI Runtime
Qualcomm
Markham, ON
Full-time
Staff Software Engineer – Qualcomm AI Runtime
Added 15 hours ago
QA Playwright Engineer
Envision Technology Solutions
Toronto, ON
Full-time
Mobile testing experience using Android Studio and Xcode
Added 16 hours ago
Quality engineer (AEM)
Insight Global
Toronto, ON
$50 to $55 CAD / hour
Contract
The Digital Platform & Content Management team is searching for an experienced Quality Engineer to join our team. As a Quality Engineer, you will partner with development, architecture,…
Added 16 hours ago
Quality Assurance Engineer
Envision Technology Solutions
Toronto, ON
Full-time
Mobile testing experience using Android Studio and Xcode
Added 17 hours ago
Staff Android Engineer - Tangerine
Tangerine
Toronto, ON
Full-time
As a Staff Android Engineer, you'll be joining one of our teams that's rebuilding our mobile banking / wealth application. You will be contributing to the development of world-class digital…
Added 17 hours ago
Staff Android Engineer - Tangerine
Scotiabank
Toronto, ON
As a Staff Android Engineer, you'll be joining one of our teams that's rebuilding our mobile banking / wealth application. You will be contributing to the development of world-class digital…
Added 21 hours ago
Technical Architect (React Native) - Canada
Zazz
Vaughan, ON · Woodbridge South, Ontario
Full-time
Guide the Senior React Native Engineer on pattern setting in early sprints.
Added 1 day ago
Staff AI Software Engineer
Qualcomm
Markham, ON
Full-time
…smarter, connected future for all. As a Qualcomm Machine Learning Engineer, you will create and implement machine learning techniques, frameworks, and tools that enable the efficient…
Added 3 days ago
Cyber Secruity Engineer
Lorex Technology
Markham, ON
$105,000 to $125,000 CAD / year
Full-time
AWS Certified Security – Specialty, GCP Professional Cloud Security Engineer, CISSP, CISA, or CCSK
Added 3 days ago
SDET (API Automation )
Nityo Infotech
Toronto, ON
Full-time
We are looking for a skilled Software Development Engineer in Test (SDET) to support quality engineering activities for web and mobile applications. The ideal candidate will have strong…
Added 3 days ago
Senior Quality Engineer
Bevertec
Toronto, ON
Contract
We are looking for a curious, detail-oriented Senior Quality Engineer who is skilled in exploratory and functional testing.
Added 4 days ago
Software Engineer
Picovoice
Vancouver, BC
$75,000 to $150,000 CAD / year
Full-time
Added 6 days ago
Senior Android Engineer, Wallet
Robinhood
Toronto, ON
As a Senior Android Developer, you’ll build and own new product features for the Robinhood Wallet Android app. You will develop reliable and secure solutions to deliver a high-quality…
Added 5 days ago
Sr. Software Engineer - Fullstack
eBay
Toronto, ON
Full-time
We are looking for a Senior Software Engineer – Full Stack with 6+ years of professional software development experience to help build a new, scalable authentication platform.
Added 4 days ago
Staff Product Security Engineer, Reviews
Okta
Toronto, ON
The Staff Product Security Engineer Opportunity
Added 6 days ago
Display Senior Software Engineer
Qualcomm
Markham, ON
Full-time
· Tackle complex technical challenges and troubleshoot issues across Android, Windows, Linux, Zephyr, and microcontrollers.
Added 5 days ago
Principal Design Engineer
League Inc.
Canada
…health and well-being. We're looking for a Principal Design Engineer to own the bridge between design and code. Our design system serves web, iOS, and Android across every product and…
Added 6 days ago
Senior Android Developer - Trailering Application
General Motors
Markham, ON · Oshawa, ON
Full-time
GM is looking to hire a Senior Android Software Engineer to lead design, development, and long‑term maintenance of in‑vehicle infotainment (IVI) apps on Android Automotive OS (AAOS) for…
Added 5 days ago
Senior Staff Software Developer, Developer Infrastructure
Robinhood
Toronto, ON
…integrated teams whose collective mission is to make every engineer at Robinhood faster, more reliable, and exponentially more productive. The org spans four major teams: DevX (Developer…
Added 6 days ago
Software Development Engineer, Ring Cloud Connectivity Org
Amazon
Toronto, ON
Ring is seeking a Mobile Software Development Engineer to join the Cloud Connectivity organization in Toronto, where you'll build and deliver customer-facing mobile experiences that power…

Closed listing

Zazz

Lead React Native Engineer - Canada

Toronto, ON, Canada
Greater Toronto Area, Canada, Canada

Job type: Contract
Closing date: Oct 21, 2026
Posting language: English
Posted: Sep 21, 2026

This opening has closed.

The original listing is kept below for reference.

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Added 7 hours ago
Senior Full Stack Engineer
Ignition · Remote, Canada
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Added 21 hours ago
Technical Architect (React Native) - Canada
Zazz · Vaughan, ON, Canada
Added 3 days ago
Technology Lead - GenAI Lead
Infosys · Mississauga, ON, Canada
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Technology Lead - GenAI Lead
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Original job description

Archived listing. The details below describe a past opening.

Role summary: Lead engineer on the delivery team, owning the highest-complexity screens, integrations, and engineering patterns across a production mobile application. The role requires strong hands-on expertise in React Native 0.76+, New Architecture (Fabric, TurboModules, Bridgeless), TypeScript, Hermes, Expo SDK 52, TanStack Query, Zustand, and Detox, along with native Swift/Kotlin development.

You will own key integrations including Auth0/OIDC, Apple Pay, Google Pay, APNs, FCM, Universal Links, and App Links, with experience in iOS Keychain and Android Keystore for secure token storage. Prior production experience with native-to-React Native replatforming and migration of authentication tokens, push notifications, and cached data is required.

Responsibilities.

Deliver highest-complexity screens and integrations across three delivery waves.
Set engineering patterns, reference implementations, and code standards for the team.
Pair with the client's engineers on paired-programming and knowledge transfer.
Own payment integration, Auth0 identity flow, and push notification architecture at code level.
Lead pull request reviews.
Contribute to Architecture Decision Records.
Support the four self-sufficiency exercises during hypercare (deploy hotfix, onboard from KB, restore during simulated P1, extend using established patterns).

Must-have technical experience

8+ years mobile engineering, minimum 5 years hands-on React Native in production.
Direct production experience with React Native 0.76+ and the New Architecture (Bridgeless, TurboModules, Fabric).
Strong TypeScript, comfortable with strict mode.
Hands-on with Hermes engine and Expo SDK 52 prebuild.
Direct experience with TanStack Query and Zustand.
Detox authorship for end-to-end mobile tests, both iOS and Android.
Prior integration of Apple Pay and Google Pay (tokenised payment handles).
Prior integration of Auth0 or equivalent OIDC identity in mobile.
Prior implementation of APNs and FCM push notifications, including token migration on version upgrades.
Universal Links and App Links deep-link routing.

Native platform expertise (required).

Comfortable reading and writing native iOS (Swift or Objective-C) and native Android (Kotlin or Java) at the level required to author or maintain TurboModules bridging native SDKs into React Native.
Prior experience with iOS Keychain and Android Keystore for secure token storage.

Migration and replatform experience (required).

Direct experience on at least one mobile replatform from native to React Native, in production.
Understanding of auth token migration, push token re-registration, cached data reconciliation on first launch after replatform.

Industry background (preferred).

Regulated Canadian mobile experience (public sector, transportation, financial services).
Bilingual (English and French) app delivery experience.
WCAG 2.1 or 2.2 accessibility delivery.

About employer

More about this job

Responsibilities

The lead engineer will own the development of high-complexity mobile application screens, integrations, and engineering patterns. They are responsible for setting code standards, leading pull request reviews, and managing critical payment and identity architecture.

Requirements

Candidates must have over 8 years of mobile engineering experience, including at least 5 years of production-level React Native expertise. Proficiency in native iOS and Android development, along with experience in replatforming and secure token management, is mandatory.

Skills

React Native
TypeScript
Swift
Kotlin
Expo SDK
TanStack Query
Zustand
Detox
Auth0
OIDC
Apple Pay
Google Pay
APNs
FCM
TurboModules
Fabric

Visa sponsorship

Not detected in the job text

Keywords

React Native
TypeScript
Swift
Kotlin
Hermes
Expo SDK
TanStack Query
Zustand
Detox
Auth0
OIDC
Apple Pay
Google Pay
APNs
FCM
Universal Links
App Links
iOS Keychain
Android Keystore
TurboModules
Fabric
Bridgeless
Mobile Engineering
Replatforming
Architecture Decision Records
WCAG
Accessibility
Public Sector
Financial Services
Transportation

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