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Added 1 month ago
CC
Product Manager – Agile Mobile & Digital Credential Solutions (Kotlin, Swift, React Native, Node.js, Go, Python)
CCI- Computer Consultants International, Inc.
Toronto, ON
- Contract
Has knowledge and experience with developing software with at least one primary stack (e.g., Kotlin/Swift/React Native for mobile; Node/Go/Python for backend services)
Added 1 month ago
TC
UI Developer
Tata Consultancy Services
Mississauga, ON
- $100,000 to $130,000 CAD / year
- Full-time
Lead the design and development of scalable, responsive, and high-performance web applications using Angular and React. Architect reusable UI frameworks, shared component libraries, and…
Added 1 month ago
B&
Expert Senior Manager, AI Engineering
Bain & Company
Zurich, ON
- Full-time
Oversee API development, microservices, CI/CD pipelines, observability, and cloud-native deployment
Added 1 month ago
QA Lead, Mobile Test Automation
Kensington
Toronto, ON
This is a hybrid position, currently requiring a minimum of two days per week onsite at our office located at 2 Queen St
Added 1 month ago
QA Lead, Mobile Test Automation
TripArc
Toronto, ON
This is a hybrid position, currently requiring a minimum of two days per week onsite at our office located at 2 Queen St
Added 1 month ago
QA Lead, Mobile Test Automation
Range Group - Job Postings
Toronto, ON
This is a hybrid position, currently requiring a minimum of two days per week onsite at our office located at 2 Queen St
Added 1 month ago
Software Developer Intern, Web (Summer 2027)
Robinhood
Toronto, ON
This role is based in our Toronto, ON office, with in-person attendance expected at least 3 days per week
Added 2 months ago
A
Développeur C#/.NET senior ou développeuse C#/.NET senior
Alithya
Toronto, ON
- Full-time
As a C#/.NET Senior Developer, you'll contribute to the design, development, and evolution of enterprise applications supporting a variety of business and technology initiatives. Working…
Added 2 months ago
P
Senior Software Engineer (Trading Technology Software Development)
Pinnacle
Toronto, ON · North York, ON
- Full-time
…deep expertise across the stack: backend architecture, cloud-native technologies, and distributed systems, plus React and TypeScript for user-facing…
Added 2 months ago
FR
Senior Director, Engineering - Innovation Tribe
Fitch Ratings
Toronto, ON
- Full-time
…on engineering quality. Set the standard for what modern, AI-native engineering delivery looks like at…
Added 2 months ago
GC
Design Engineer (Senior / Staff / Principal)
Gym Class
Canada
- Full-time
…flagship VR app. This person loves to move fast from Figma → React, set a high quality bar, and has shipped viral consumer apps - including the product loops that drive retention,…
Added 2 months ago
B
Software Engineer, Product (Co-op)
Bree
Remote, Canada
- $8,600 to $12,000 CAD / year
- Internship
- Remote
Work across TypeScript and Node.js backend services and React Native frontends, with support from the team as you learn the stack.
Added 2 months ago
M
Full-Stack Developer - IAM
MaintainX
Toronto, ON
- $88,000 to $240,000 CAD / year
- Full-time
You’ll work across our stack (TypeScript, React, React Native, Node.js, C#, and GraphQL) - Web & Mobile
Added 2 months ago
M
Développeur(se) logiciel principal (Senior), déploiements de conformité et multi-régions
MaintainX
Toronto, ON
- $107,000 to $157,000 CAD / year
- Full-time
…de la pile technologique, avec une maîtrise de TypeScript et React Native, en veillant à des déploiements cohérents et fiables dans toutes les…
Added 2 months ago
JG
Sr. Software Developer
J&M Group
Toronto, ON
- Full-time
Experience with React Native framework for cross-platform mobile app development (iOS and Android).
Added 2 months ago
CI
Software Engineer (Full Stack) - 6 Month Contract
Citylitics Inc.
Toronto, ON
- $100,000 to $140,000 CAD / year
- Contract
A full stack developer to modernize an established Django + React web application paying down tech debt on a live, actively-shipping codebase. Alongside that, you'll ship smaller,…
Added 2 months ago
H
Architecte logiciel
Highspring
Montreal, QC
- Full-time
Added 2 months ago
EL
Mobile Developer
EnStream LP
Toronto, ON
- Full-time
Own the design, development, testing, and release of EnStream’s native iOS (Swift) and Android (Kotlin) SDKs, end to end.
Added 2 months ago
IF
Senior iOS Developer, Design System
Intact FC
Montreal, QC
- Full-time
As a Senior iOS Developer, you will play an essential role in the design and evolution of iceberg, Intact’s design system (Android, iOS, React, and Angular). You will facilitate the work of…
Added 2 months ago
A
C#/.NET Senior Developer
Alithya
Toronto, ON
- Full-time
As a C#/.NET Senior Developer, you'll contribute to the design, development, and evolution of enterprise applications supporting a variety of business and technology initiatives. Working…
Added 2 months ago
Senior Director, Engineering - Innovation Tribe
Fitch Group
Toronto, ON
…on engineering quality. Set the standard for what modern, AI-native engineering delivery looks like at…
Added 2 months ago
A
Lead Software Engineer - Front End (Bangkok based, Relocation provided)
Agoda
Toronto, ON
- Full-time
…optimized user experiences globally across mobile websites, native apps, and desktop sites, fostering innovation and constant improvement through data-driven…
Added 2 months ago
Senior Software Engineer
BuildOps
Toronto, ON
Experience with React or similar frontend frameworks
Added 2 months ago
CI
Lead Software Engineer, AI & Emerging Tech
CPP Investments | Investissements RPC
Toronto, ON
- Full-time
…Graph/RAG architectures, using clean, maintainable Python and AWS-native…
Added 2 months ago
I
Principal Software Developer
Intuit
Toronto, ON
- Full-time
Come join Intuit as a Principal Software Developer and help us power prosperity around the world. We are looking for engineers that love to take on new challenges, solve tough problems, and…

EnStream LP

Mobile Developer

Toronto, ON, Canada

Full-time

Apply on LinkedIn About employer

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Job details

Job type: Full-time
Apply by: Mar 3, 2027
Experience: 5+ years of professional mobile development experience.
Posting language: English
Posted: Sep 4, 2026

Original job description

Job Title: Mobile Developer

Location: Toronto

Department: Engineering

Employment Type: Full-time

Reports To: Head of Engineering

This role requires a minimum of four (4) days per week working onsite at EnStream’s head office in Toronto; this requirement may be changed at management’s discretion.

About EnStream

EnStream is a trusted leader in secure mobile identity verification and data services in Canada. We operate at the intersection of telecommunications, identity, and data privacy - enabling businesses and governments to deliver seamless, secure digital experiences. Jointly owned by Canada’s largest telecom providers, EnStream provides secure access to mobile network insights that drive innovation and protect consumers.

Our mission is to enable frictionless trust in every interaction. We are committed to advancing secure, privacy-first identity solutions that leverage trusted telco data to serve enterprises, financial institutions, and public sector organizations across Canada.

Role Overview

The Mobile Developer at EnStream owns the native iOS and Android SDKs that our partners embed in their own applications - the client-side entry point to EnStream’s identity and fraud-prevention services, including SIM-based authentication aligned with GSMA standards. This is SDK engineering rather than app engineering: the deliverable is a small, stable, well-documented library that other developers integrate once and depend on for years. The role covers the full product surface - public API design, deep platform and mobile-networking work, packaging and release, reference applications, and the integration documentation that partner engineering teams actually read. Because our SDKs run inside banking and fintech applications, correctness, backward compatibility, binary footprint, and privacy are treated as first-class requirements, not afterthoughts.

What You'll Do

Own the design, development, testing, and release of EnStream’s native iOS (Swift) and Android (Kotlin) SDKs, end to end.
Design public SDK interfaces that are small, hard to misuse, and stable across releases - with deliberate versioning, deprecation, and backward-compatibility practices.
Handle the realities of mobile networks: Wi-Fi and cellular transitions, dual-SIM and eSIM devices, captive portals, carrier variation, timeouts, and retry behaviour.
Keep the SDK lightweight and dependency-light: minimize binary footprint, avoid transitive dependency conflicts inside host applications, and collect no more data than an integration requires.
Build and maintain reference applications and sample integrations for both platforms that demonstrate real, production-shaped integration paths.
Write and own developer-facing documentation - integration guides, API reference, migration notes, and troubleshooting runbooks.
Own SDK distribution and release engineering: Swift Package Manager, CocoaPods, XCFramework, Maven Central / Gradle, signed artifacts, changelogs, and reproducible CI builds.
Define a test strategy appropriate to code you cannot hot-fix in production: unit tests, instrumented and device-farm testing across OS versions and device models, and simulated carrier conditions.
Support partner integration teams - triage integration issues, reproduce customer-reported failures from logs, and feed that friction back into API and documentation design.
Instrument the SDK for diagnostics and error reporting that helps partners debug quickly without exposing end-user data.
Track iOS and Android platform releases and get ahead of breaking changes in permissions, privacy manifests, and network stack behaviour.
Partner with Backend, QA, and Security teams on the service contracts, test coverage, and security reviews that surround the SDK.
Actively participate in agile ceremonies as part of a Scrum team, helping drive feature delivery and platform modernization.

What You Bring

Must-Have Skills & Experience

Degree in Computer Science, Software Engineering, or equivalent practical experience.
5+ years of professional mobile development experience. Experience building and shipping SDKs or libraries consumed by third-party developers, beyond end-user application is a strong asset but not a requirement
Current, hands-on production experience on both platforms: Swift for iOS and Kotlin for Android.
Proven public API design skill: interface design, semantic versioning, deprecation strategy, thread-safety guarantees, and clear error-handling contracts.
Strong understanding of mobile networking: HTTP/TLS, certificate handling, connection lifecycle, radio and Wi-Fi transitions, and behaviour under unreliable network conditions.
Experience packaging and distributing libraries (Swift Package Manager, CocoaPods, XCFramework, Maven Central / AAR), including artifact signing and release process.
Strong asynchronous and concurrency skills (Swift Concurrency / GCD, Kotlin coroutines).
Solid automated testing discipline for library code, including mocking network layers and testing across OS versions and device configurations.
Proficiency with Git and with CI/CD for mobile (e.g., Fastlane, GitHub Actions, Bitrise, or similar).
Security-conscious mindset: secure storage (Keychain, Android Keystore), certificate pinning, code obfuscation, and careful handling of personal information.
Excellent written communication - you can produce integration documentation a partner developer can follow without a support call.
Strong problem-solving and analytical skills, with a detail-oriented approach to compatibility and edge cases.

What Sets You Apart

Prior experience at a vendor shipping SDKs into regulated customers (banks, fintechs, insurers), including their security review, penetration test, and SBOM processes.
Familiarity with device attestation and anti-fraud signals (App Attest, DeviceCheck, Play Integrity, root/jailbreak and emulator detection).
Experience wrapping native SDKs for cross-platform frameworks (React Native, Flutter, Cordova).
Hands-on use of device farms (Firebase Test Lab, BrowserStack, AWS Device Farm) and testing against real carrier SIMs.
Backend familiarity (Python, Java) and REST API design - enough to help shape the service contract the SDK consumes.
Experience with mobile observability and crash reporting at scale.
Contributions to open-source mobile libraries, or public technical writing and developer advocacy.

The Ideal Candidate

You have shipped code that other developers depend on, and it shows in how you design an interface: small surface area, obvious usage, no sharp edges. You are equally comfortable in Swift and Kotlin, you are curious about what actually happens on the radio when a request leaves the device, and you treat a confusing integration guide as a bug in your own work.

Why Join EnStream?

At EnStream, you will play a critical role in shaping the architecture of trusted digital identity and data platforms used across Canada. You will work alongside leading telecom partners and enterprise clients, driving innovation in a space that directly impacts security, privacy, and trust for millions of users.

Join us in building the foundation for secure digital interactions in Canada.

Apply on LinkedIn About employer

More about this job

Responsibilities

Own the end-to-end design, development, and release of native iOS and Android SDKs for identity and fraud-prevention services. This includes designing stable public APIs, managing distribution channels, and providing integration support for partner engineering teams.

Requirements

Requires a degree in Computer Science or equivalent and 5+ years of professional mobile development experience with proficiency in Swift and Kotlin. Candidates must have strong skills in API design, mobile networking, and library distribution for third-party consumption.

Skills

Swift
Kotlin
iOS SDK Development
Android SDK Development
Public API Design
Mobile Networking
Swift Package Manager
CocoaPods
Maven Central
Git
CI/CD
Asynchronous Programming
Automated Testing
Secure Storage
Technical Documentation
Security Mindset

Visa sponsorship

Not detected in the job text

Keywords

iOS
Android
Swift
Kotlin
SDK
API Design
Mobile Networking
HTTP/TLS
Swift Package Manager
CocoaPods
XCFramework
Maven Central
Gradle
CI/CD
Fastlane
GitHub Actions
Bitrise
Keychain
Android Keystore
Certificate Pinning
App Attest
DeviceCheck
Play Integrity
React Native
Flutter
Cordova
Firebase Test Lab
BrowserStack
AWS Device Farm
Scrum

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Jobs in Canada