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Added 27 days ago
M
Senior Full-Stack Software Engineer
Manulife
Toronto, ON
- Full-time
At Manulife, we're transforming how technology supports investment decision-making. As a Senior Full-Stack Engineer, you'll work alongside talented engineers, architects, and business…
Added 27 days ago
AI
Java Technical Lead
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
Skills: Amazon Web Service (AWS) Cloud Computing:Java Full stack, Python, Spring Boot, Angular, AWS, REST API
Added 26 days ago
ND
Tech Consultant - Senior Full-Stack Engineer
NTT DATA North America
Vancouver, BC
- Other
NTT Data is looking for a SR. Full- Stack Engineer to join their team in Vancouver, British Columbia.
Added 26 days ago
A
Senior Full Stack Developer (React/Typescript/Node.js)
Affinity
Canada
- Full-time
Overview: On behalf of our client, Affinity is seeking an experienced Senior Full Stack Developer to join their engineering team in Canada. This is a full-time opportunity for a seasoned…
Added 27 days ago
A
Senior Full Stack Software engineer
Affinity
BC · British Columbia, Canada
- Full-time
On behalf of our client, Affinity is seeking an experienced Senior Full Stack Developer to join their engineering team in Canada. This is a full-time opportunity for a seasoned engineer who…
Added 28 days ago
SS
Sr. Software Engineer, AVP II
State Street
Toronto, ON
- Full-time
This position will be a critical contributor with ownership for designing and implementing complex wealth and investment management workflows leveraged by some of the largest participants…
Added 27 days ago
A
Software Engineer
aivra.health
Toronto, ON
- $100,000 to $160,000 CAD / year
- Full-time
Work on frontend, backend, or full-stack development based on your expertise.
Added 27 days ago
I
Software Developer - Inteleshare
Intelerad
Canada
- Full-time
…(jQuery and vanilla JavaScript across the established pages, React and TypeScript in newer areas), a Java (Spring Boot) storage service backed by S3 and other cloud object stores, and a…
Added 27 days ago
PG
Java Full stack Developer
Pacer Group
Toronto, ON
- $110,000 to $120,000 CAD / year
- Full-time
8+ years of experience as a Senior Full Stack Java Developer with strong Java/J2EE expertise.
Added 1 month ago
OP
Staff Software Engineer
Open People Network (OPN)
Toronto, ON
- Full-time
Describe the most relevant production system you have personally built or substantially owned using Java and Spring Boot. What did you build, how recently were you hands-on in the code, and…
Added 27 days ago
SS
Sr. Software Engineer, AVP II
State Street
Toronto, ON
- Full-time
This position will be a critical contributor with ownership for designing and implementing complex wealth and investment management workflows leveraged by some of the largest participants…
Added 28 days ago
Software Engineer
Questrade Financial Group
Toronto, ON
The Software Engineer is responsible for designing, building, testing, and deploying features across the full software development lifecycle. Operating with limited supervision, this role…
Added 27 days ago
LI
Java Software Engineer
LanceSoft, Inc.
Quebec, QC
- $60 to $70 CAD / hour
- Contract
We are seeking a hands-on full-stack Java engineer to design, build, and support new trade Supervisory Dashboard capabilities spanning server-side services and a modern React Ul, with a…
Added 27 days ago
T
Senior Software Engineer
Tactable
Toronto, ON
- Full-time
Experience integrating backend services with React-based frontends (bonus if full-stack)
Added 27 days ago
MM
Senior Software Engineer
Mohawk Medbuy Corporation
Toronto, ON · Greater Toronto Area, Canada
- Full-time
5+ years proven experience designing, developing, testing, and deploying full-stack applications end-to-end
Added 28 days ago
IT - Senior Software Engineer
Mohawk Medbuy Corporation (MMC)
Burlington, ON · London, ON · Toronto, ON
5+ years proven experience designing, developing, testing, and deploying full-stack applications end-to-end
Added 27 days ago
G
Java FS Developer (Angular/ React)
Genpact
Montreal, QC
- Full-time
Nous recrutons pour le poste de Développeur(se) Java Full Stack (Angular/React)
Added 27 days ago
P
Full Stack Engineer
PeoplePilot
Toronto, ON
- $110,000 to $120,000 CAD / year
- Full-time
5+ years of software development experience with Java and/or Node.js, covering the full application development lifecycle.
Added 28 days ago
JG
Java Full stack Developer
J&M Group
Montreal, QC
- Contract
Minimum of 7 years of professional experience in Java (Primary) and Angular or React (Secondary)
Added 28 days ago
OI
Senior Full Stack Developer
OXARO Inc.
Ottawa, ON
- Full-time
We are seeking a Senior Full Stack Developer to join a collaborative Agile team and lead the development of modern, scalable applications that deliver real business value. This role…
Added 28 days ago
SI
Full Stack Engineer
Stelvio Inc.
Saskatoon, SK
- Full-time
We are Looking for a Intermediate Full stack Developer to join an established technology team.
Added 29 days ago
TS
Java Full Stack Developer
TalentSphere Staffing Solutions
Toronto, ON
- Full-time
We are building a talent pool of experienced Java Full Stack Developers for current and upcoming opportunities with organizations across the Greater Toronto Area.
Added 1 month ago
FR
Senior Director, Engineering - Innovation Tribe
Fitch Ratings
Toronto, ON
- Full-time
Lead the Innovation Tribe with vision and accountability Own the strategic direction, execution, and culture of three high-performing engineering teams spanning full-stack software…
Added 1 month ago
EL
Mobile Developer
EnStream LP
Toronto, ON
- Full-time
Design public SDK interfaces that are small, hard to misuse, and stable across releases - with deliberate versioning, deprecation, and backward-compatibility practices.
Added 1 month ago
VV
Java Full Stack Developer 1016
Veracity Ventures Inc.
Remote, Canada
- Full-time
- Remote
We are looking for talented Java Developers with 3+ years of experience to join our growing team. Candidates with strong Java fundamentals and experience in backend or full-stack…

EnStream LP

Mobile Developer

Toronto, ON, Canada

Full-time

Apply 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 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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