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Added 4 months ago
C
Junior Quality Assurance Automation Analyst
CGI
Toronto, ON
- Full-time
…will have hands-on experience with Selenium automation using Java and possess a strong understanding of software testing methodologies. This role involves developing automated test scripts,…
Added 1 month ago
Z
Technical Consultant II/III
Zafin
Toronto, ON
- Full-time
…integration, testing, deployment readiness, troubleshooting, production support, and continuous improvement. At the Technical Consultant III level, you will also provide hands-on technical…
Added 1 month ago
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Architecte logiciel
Highspring
Montreal, QC
- Full-time
Drive root cause analysis of production incidents and support implementation of sustainable corrective actions.
Added 1 month ago
EL
Mobile Developer
EnStream LP
Toronto, ON
- Full-time
Excellent written communication - you can produce integration documentation a partner developer can follow without a support call.
Added 1 month ago
A
Curam Development Lead
Accenture
Calgary, AB · Vancouver, BC · Winnipeg, MB · Ottawa, ON · Toronto, ON · Montreal, QC
- Full-time
Collaborate with business stakeholders and colleagues within Product Teams to gather requirements, prioritize enhancements, resolve production issues, and improve service performance.
Added 1 month ago
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Front-End Developer - Netflix Animation Studios
Netflix
Vancouver, BC
- Full-time
A team member in this role must be an experienced web front-end developer with strong UI/UX design sensibilities. The role requires someone capable of working in a modern tech stack using…
Added 1 month ago
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Software Developer
Ericsson
Mississauga, ON · Ottawa, ON
- Full-time
Be an end-to-end owner of the implemented functionality: from design and implementation through verification and deployment to production support
Added 1 month ago
IS Product Support - EDI Specialist
Farrow
North Dumfries, ON
The EDI Specialist is responsible for providing direction, development and support of the Electronic Data Interchange (EDI) environment at Farrow. They will lead various EDI projects by…
Added 1 month ago
GP
Senior Software Engineer
Generac Power Systems
Toronto, ON · Canada - Toronto
- Full-time
This role follows a hybrid schedule, with in-office work required on Wednesdays and Thursdays to support collaboration, and flexibility to work remotely for the remainder of the week.
Added 1 month ago
HP
Helical Pile Operator
Helical Pile Solutions
Nisku, AB
- Full-time
…30 years of experience in the industry, recently acquired by Java Holdings Ltd. (“Java”). Java staff have over 50 years of experience building some of Canada’s largest electrical…
Added 1 month ago
C
Specialist Developer-Java
CPKC
Calgary, AB
- Full-time
At CPKC, technology drives the safe and efficient movement of freight across North America. As a Specialist Developer-Java, you will play a key role in designing, developing, implementing,…
Added 1 month ago
C
Senior Java Developer – Vice President
Citi
Mississauga, ON
- Full-time
Citi is looking for a Senior Java Developer to design, build, and evolve enterprise-grade shared services that underpin high-volume, mission-critical financial systems. In this role, you…
Added 1 month ago
WC
Senior Specialist, Item File
Walmart Canada
Mississauga, ON
- Full-time
Perform user acceptance testing (UAT), document outcomes, and support production deployment of tool enhancements.
Added 2 months ago
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Senior Java Developer, Applications Development – Assistant Vice President
Citi
Mississauga, ON
- Full-time
Citi is looking for a Senior Java Developer to join its Applications Development team, where you will design, build, and own high-performance Java applications that underpin critical…
Added 1 month ago
A
Controls System ACCIS Engineer
AtkinsRéalis
Mississauga, ON
- Full-time
Controls System ACCIS Engineer will support Computer Systems Engineering department which is responsible for digital instrumentation and control equipment for projects involving control,…
Added 1 month ago
AW
Portfolio Manager, Managed Assets Program (MAP)
Aviso Wealth
Remote, Canada
- $115,000 to $135,000 CAD / year
- Full-time
- Remote
…Aviso’s discretionary fee-based solutions and administration support. This includes providing oversight on discretionary trades and operational processes and contributing to the overall…
Added 1 month ago
AW
Portfolio Manager, Managed Assets Program (MAP)
Aviso Wealth
Remote, Canada
- $115,000 to $135,000 CAD / year
- Full-time
- Remote
…Aviso’s discretionary fee-based solutions and administration support. This includes providing oversight on discretionary trades and operational processes and contributing to the overall…
Added 1 month ago
R
Full Stack Developer, AI
RBC
Toronto, ON
- Full-time
…monitoring and observability platforms such as Dynatrace to support operational stability and diagnose production…
Added 7 months ago
BT
Software Engineer I
Beanfield Technologies Inc.
Toronto, ON
- $90,000 to $110,000 CAD / year
- Full-time
Java Programmer or Developer certifications from Oracle
Added 1 month ago
S
Senior Core Java Developer with E-trade exp.
Synechron
Toronto, ON
- $110,000 to $120,000 CAD / year
- Full-time
We are seeking a highly skilled Senior Java Developer with AI experience to join the FIC Global Spread Products eTrading Technology team. The successful candidate will contribute to the…
Added 1 month ago
HP
Swamper
Helical Pile Solutions Ltd.
Nisku, AB
- Full-time
…30 years of experience in the industry, recently acquired by Java Holdings Ltd. ("Java"). Java staff have over 50 years of experience building some of Canada's largest electrical…
Added 1 month ago
P
Principal AI Engineer
PointClickCare
Mississauga, ON
- $191,700 to $213,000 CAD / year
- Full-time
Must Have - Advanced Python & Java expertise in production systems (testing, packaging, performance profiling) and deep experience extending agent frameworks such as Anthropic, LangChain,…
Added 1 month ago
Technical Consultant II/III
Zafin
Toronto, ON
…integration, testing, deployment readiness, troubleshooting, production support, and continuous improvement. At the Technical Consultant III level, you will also provide hands-on technical…
Added 1 month ago
C
Junior DevOps Specialist
CGI
Toronto, ON
- Full-time
Stadardize deployment artifacts and container repositories across multiple environments (Dev, Staging, Production)
Added 1 month ago
VC
Directeur·rice des produits et de l'ingénierie | Head of Product and Engineering
Valsoft Corporation
Remote, Canada
- Full-time
- Remote
…et programmer certaines fonctionnalités jusqu’à leur mise en production. Vous vous appuierez sur les expertises de l’équipe pour les décisions techniques…

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.

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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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