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Added 10 days ago
C
AVP Applications Development Sr Programmer Analyst
Citi
Mississauga, ON
- Full-time
Build distributed microservices that power critical financial systems as a Senior Software Engineer, Java Microservices at Citi. You will design, develop, and implement scalable backend…
Added 10 days ago
SI
Senior Developer
SAP IT Business Systeme
Montreal, QC
- $108,100 to $222,800 CAD / year
- Full-time
We are looking for a dynamic and motivated Senior Software Developer who embrace AI-assisted software development as part of their everyday engineering practice to join our engineering…
Added 10 days ago
AI
Senior Java- Low Latency Developer
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Mississauga, ON
- Full-time
Design, develop, test, and maintain enterprise-grade Java applications.
Added 10 days ago
KG
PKI & Certificate Automation Engineer
K&K Global Talent Solutions INC.
ON · Ontario, Canada
- Full-time
We are seeking a highly skilled Senior PKI & Certificate Automation Engineer with strong expertise in Digital Certificate Lifecycle Management, PKI Infrastructure, TLS/mTLS Security,…
Added 10 days ago
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Senior Java Low Latency Developer
HRConnects
Mississauga, ON
- Full-time
We’re seeking a Senior Java Low Latency Developer to design, develop, test, and maintain enterprise applications. You’ll work across APIs, microservices, middleware integrations, databases,…
Added 10 days ago
C
Sr. Consultant, Full Stack Developer
CIBC
Toronto, ON
- Full-time
…multiple back-end systems. As a Sr. Consultant, Full Stack Developer you’ll assemble, implement and maintain easy, flexible, and personalized solutions that enhance the client experience…
Added 10 days ago
Senior Software Engineer, Performance ( Toronto)
Okta
Toronto, ON
5+ years of experience as a software developer with strong knowledge of Java or a similar language, including a solid understanding of JVM internals, garbage collection, and concurrency.
Added 10 days ago
LT
Senior Developer - Mainframe
Lorven Technologies Inc.
Toronto, ON · Greater Toronto Area, Canada
- Contract
As a Senior Developer, you will be working in a development and support capacity on our core mainframe cards and transactions system.
Added 10 days ago
A
Senior Java Spark Backend Developer
Apptad
Montreal, QC
- Contract
We are seeking a highly skilled and experienced Senior Java Backend Developer to join our core engineering team. In this role, you will be responsible for designing, building, and…
Added 10 days ago
Senior Backend Product Engineer, Menu Operations
HelloFresh
Toronto, ON
As we continue evolving this system, extending its capabilities, and preparing for expansion, we are looking for a Senior Software Engineer with strong backend experience, a talent for…
Added 10 days ago
SM
RQ11255 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Full-time
We are seeking a Senior Systems Testing/QA Specialist with extensive experience in software quality assurance, commercial off-the-shelf (COTS) application testing, functional and…
Added 10 days ago
SM
RQ11739 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Senior Software Developer – Full Stack with extensive experience designing and developing large-scale, multi-client web applications, Java-based enterprise solutions, REST…
Added 10 days ago
JG
Senior Developer - Mainframe
J&M Group
Toronto, ON
- Contract
As a Senior Developer, you will be working in a development and support capacity on our core mainframe cards and transactions system.
Added 10 days ago
AS
Quality Engineer (QE) / SDET – AI Chatbot Validation
Ardent SoftSol Inc.
Brampton, ON
- $38 to $40 CAD / hour
- Contract
We are looking for a seasoned AI first Senior Quality Engineer who is empowered to help the DevOps enablement team deliver highest level quality and is responsible for ensuring the team…
Added 10 days ago
AT
Production Support Engineer (Deposit Systems)
Aarorn Technologies Inc
Montreal, QC
- $60 CAD / hour
- Contract
We are seeking an experienced Senior Oracle Financials EBS R12 Support Engineer to maintain, optimize, and support our Oracle Financials EBS R12 environment. In this role, you will manage…
Added 10 days ago
C
Consultant, IT Quality Assurance
CIBC
Toronto, ON
- Full-time
…ensure client needs are met with the highest quality. As a Senior Test Coordinator, you’ll be a team lead on CIBC’s Technology team, assigning and overseeing the execution of test cases and…
Added 10 days ago
B
Java Full Stack Developer | Montreal, Canada | Hybrid
Blutic
Montreal, QC
- Full-time
Blutic is looking for a Senior Java Full Stack Developer with 7+ years of experience, preferably with exposure to Cloud Architectures & Public
Added 10 days ago
B
Senior Java Backend Developer
Blutic
Montreal, QC
- Full-time
Blutic is looking for experienced Senior Java Backend Developer (Java + SQL) with 7 to 15 years of experience to join our high-performing engineering team. The ideal candidate will have…
Added 10 days ago
AT
Senior Java Full Stack Developer
Aarorn Technologies Inc
Toronto, ON
- $52 CAD / hour
- Contract
We are seeking a Senior Java Full Stack Developer to design and deliver scalable enterprise applications within a complex financial-services environment. The role will focus on Java and…
Added 10 days ago
AT
Senior Java Developer
Aarorn Technologies Inc
Toronto, ON
- $55 CAD / hour
- Contract
We are seeking a Senior Java Developer / Technical Lead to design and deliver secure, scalable, and high-volume banking and payment applications. The role will lead the development of Java…
Added 11 days ago
Senior Technical Delivery Manager - Web & Cloud Platforms
Rogers Communications
Toronto, ON
As Senior Technical Delivery Manager, you will build and lead high-performance engineering teams that deliver and run our Web, Services, Middleware and Cloud Native platforms. You will own…
Added 11 days ago
A
IS Principal Developer Analyst – SAP ABAP
ABB
Milton, ON
- Full-time
We are looking for a highly skilled Senior SAP ABAP Developer to join our dynamic team, where you will leverage your extensive experience in developing, enhancing, and maintaining SAP…
Added 11 days ago
SM
RQ11739 – Software Developer – Full Stack – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Senior Software Developer – Full Stack with extensive experience designing and developing large-scale, multi-client web applications, Java-based enterprise solutions, REST…
Added 11 days ago
SM
RQ11255 – Systems Testing/QA Specialist – Senior
S M Software Solutions Inc
Toronto, ON
- Full-time
We are seeking a Senior Systems Testing/QA Specialist with extensive experience in software quality assurance, commercial off-the-shelf (COTS) application testing, functional and…
Added 11 days ago
C
Principal Engineer - Android
COSMO
Remote, Canada
- $120,000 to $140,000 CAD / year
- Full-time
- Remote
…raise the engineering bar across the organization. As the most senior individual contributor on the team, you will own the hardest architectural problems, define the standards other…

COSMO

Principal Engineer - Android

Remote, Canada

Remote

$120,000 to $140,000 CAD / year · Full-time

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Job details

Pay: $120,000 to $140,000 CAD / year
Job type: Full-time
Workplace: Remote
Posting language: English
Posted: Oct 27, 2026

Original job description

Our Story:

At COSMO, we inspire kids through innovative technology and a supportive community. Our family-centric products, such as the award-winning JrTrack Kids Smartwatch, enhance children's independence and confidence. This all-in-one device functions as a phone, GPS tracker, and music player, managed via the Mission Control Parent App, which allows parents to set safety alerts and manage contacts. Recognized as a top kids' wearable by PCMag and others, Cosmo is on the rise.

About the Role

Department: Engineering

Role Summary: We are looking for a Principal Engineer to set the technical direction for our Android platform and raise the engineering bar across the organization. As the most senior individual contributor on the team, you will own the hardest architectural problems, define the standards other engineers build to, and drive multi-quarter technical strategy that spans teams and products. This is a deeply hands-on role with org-wide influence: you will still write and review code and lead execution, but your largest impact comes from your technical judgment, your depth in one or more critical domains, and your ability to grow the engineers and processes around you.

Core Responsibilities

Set technical strategy and own the architecture, reliability, performance, and security of the Android platform across teams and products.
Serve as the deep technical authority in one or more critical domains (for example GNSS, calling, networking, connectivity, power, or system services) and act as the go-to problem solver when those systems fail in hard-to-diagnose ways.
Lead technical design end to end: scope ambiguous problems, evaluate tradeoffs, produce and review design docs, and align teams and stakeholders on the approach.
Own the AIDL interfaces and communication between Android components, and the integration of hardware drivers and services with system and product applications.
Lead resolution of the hardest cross-layer issues spanning hardware, system services, performance, battery, memory, networking, and applications.
Define and model the engineering process the team builds to: PRs linked to tickets, unit test coverage, dev testing, rigorous code review, and hold the bar through your own reviews.
Lead and participate in agile ceremonies (daily standup, story refinement, retrospectives) and help the team break large initiatives into well-scoped, parallel workstreams.
Operate across multiple concurrent workstreams, sequencing and unblocking them without losing technical depth on any.
Mentor engineers at every level, including onboarding and ramping new hires, and grow the next generation of senior and lead engineers.
Act as the senior technical point of contact for hardware, firmware, product, design, and QA teams, and translate between them.
Drive platform-wide standards, tooling, and best practices, and influence the technical roadmap beyond any single area.
Set direction on AI-assisted development, driving adoption across the team where it provides measurable improvements in quality or productivity.

What You'll BringRequired Experience

8+ years of professional software engineering experience, with 6+ years focused on Android.
4+ years acting as a technical leader or principal-level IC, setting direction and mentoring engineers across teams.
Deep, demonstrable expertise in one or more platform domains such as GPS, calling, networking, connectivity, or system services (3+ years of focused depth).
7+ years hands-on with Android SDK, Android Studio, Kotlin, and Java.
4+ years hands-on with AOSP, Android framework, system services, privileged apps, HALs, or custom Android devices.
Deep knowledge of Binder, AIDL, drivers, and hardware-to-application data flow (4+ years).
Expert understanding of Android architecture, security, performance, and UI development.
4+ years with MVVM or Clean Architecture, modularization, Dagger or Hilt, Coroutines, Flow, or RxJava.
Experience with XML Views and Jetpack Compose (3+ years).
Expert testing and debugging skills using tools such as JUnit, Robolectric, Espresso, logs, traces, and bug reports.
4+ years working with CI/CD, feature flags, analytics, staged releases, and large codebases.
A track record of setting and upholding engineering processes (PR hygiene, unit testing, dev testing, code review) across a team.
A proven history of sound architecture and tradeoff decisions under ambiguity and constraint, at a scope that affected multiple teams or products.
Excellent communication, ownership, and problem-solving skills, with a demonstrated ability to drive alignment across the org.

Nice to Have

Deep experience with smartwatches, wearables, IoT, embedded Android, or other custom hardware (3+ years).
Experience with Linux drivers, JNI, C/C++, Soong, or the AOSP build system.
Published Android applications or open-source contributions.
Experience with design systems and global product releases.
Experience defining engineering process, tooling, or release infrastructure at the org level.
Familiarity with responsible AI-assisted development practices.

Skills & Attributes

Fluent in English
Strong technical ownership and decision-making mindset
Comfortable coordinating across time zones and cultures
Organized, clear communicator who surfaces risks early
Calm and effective in fast-moving, ambiguous environments

What We Offer

Competitive salary and benefits including 100% employer paid supplemental medical policy
Remote working environment
An opportunity to make a significant impact in a fast-growing company
Generous PTO
Collaborative, creative, and supportive work environment

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More about this job

Responsibilities

The Principal Engineer will set the technical strategy and architecture for the Android platform while leading cross-functional teams. They will also serve as a technical authority for critical domains and mentor engineers to maintain high engineering standards.

Requirements

Candidates must have over 8 years of software engineering experience with at least 6 years focused on Android development. A strong background in AOSP, system services, and technical leadership is required to manage complex architectural challenges.

Skills

Android
Kotlin
Java
AOSP
Android framework
System services
Binder
AIDL
Hardware drivers
Jetpack Compose
MVVM
Clean architecture
Dagger
Hilt
Coroutines
CI/CD

Benefits

Competitive salary
Supplemental medical policy
Remote working environment
Generous PTO

Visa sponsorship

Not detected in the job text

Keywords

Android
Kotlin
Java
AOSP
Android SDK
Android Studio
Binder
AIDL
HALs
MVVM
Clean Architecture
Dagger
Hilt
Coroutines
Flow
RxJava
Jetpack Compose
JUnit
Robolectric
Espresso
CI/CD
GNSS
Networking
Embedded Android
Linux drivers
JNI
Soong
Agile
Software Engineering
Technical Leadership

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