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Added 2 months ago
CO
Staff Software Engineer - Capital One Travel Tech - Full-stack
Capital One
Toronto, Ontario
- Full-time
…serving small businesses to powering enterprise giants. As a Senior Engineer, you will be at the epicenter of this game-changing integration, architecting seamless connections across Brex,…
Added 3 months ago
Senior Back End Engineer (Data Platform)
Forma.ai
Toronto, Ontario
As a Senior Engineer, Data Platform, you are expected to operate with strong ownership and sound technical judgment. This includes identifying risks in the work you own, surfacing edge…
Added 3 months ago
Senior Software Engineer (Applications)
Forma.ai
Toronto, Ontario
As a Senior Backend Engineer, you are expected to operate with strong ownership and sound technical judgment. This includes identifying risks in the work you own, surfacing edge cases,…
Added 1 month ago
CO
Staff Software Engineer - Capital One Travel Tech - Full-stack
Capital One
Toronto, ON
- Full-time
…serving small businesses to powering enterprise giants. As a Senior Engineer, you will be at the epicenter of this game-changing integration, architecting seamless connections across Brex,…
Added 1 month ago
Software Engineer
Kaseya Careers
Toronto, ON
We’re hiring a Senior Software Engineer to provide technical leadership across enterprise SaaS platforms and strategic engineering initiatives. This role focuses on Java-based platform…
Added 29 days ago
Senior Data Software Engineer
Scotiabank
Toronto, ON
As a Senior Software Engineer on Scotiabank’s Data & AI Technology team, you will lead the design, development and scaling of our enterprise data catalog and data management solutions…
Added 4 months ago
M
Principal Software Engineer - Distributed Systems
Microsoft
Vancouver, British Columbia
- Full-time
The Fabric Mirroring team is currently seeking a Senior Software Engineer to join their team. This team oversees designing, building, and operating a next generation service that transfers…
Added 3 months ago
S
Technical Support Engineer
Sentry
Remote, Canada
- $100,000 to $125,000 CAD / year
- Full-time
- Remote
We are architecting the Technical Support engine. We’re looking for a veteran engineer to help us redefine the standard of technical support by combining deep human expertise with…
Added 3 months ago
C
Apps Development Sr Manager - Vice President
Citi
Remote, Canada
- Full-time
- Remote
The Senior Technology Lead must be experienced hands-on engineer who is passionate about solving business, customer, and technology problems through innovation and perseverance. Responsible…
Added 1 month ago
GM
Senior Software Developer - Test Automation
General Motors
Remote, Canada
- Full-time
- Remote
You will join our engineering organization as a Software Development Engineer in Test (SDET), responsible for building robust, scalable, and automated testing solutions that ensure the…
Added 3 months ago
Senior Software Engineer, Backend (Consumer - Risk)
Coinbase
Canada
As a Senior Software Engineer on the Risk Engineering team within the Consumer & Business group, you'll build and optimize the systems that detect and prevent fraud, manage credit and…
Added 2 months ago
CO
Staff Software Engineer - Capital One Travel - Android
Capital One
Toronto, Ontario
- Full-time
161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Staff Software Engineer - Capital One Travel - Android
Added 4 months ago
TA
Senior Software Engineer
Treasure AI
Vancouver, BC
- $132,500 to $171,000 CAD / year
- Full-time
As a Senior Software Engineer on the Realtime/Personalization team, you will be a core technical contributor building Treasure AI's AI-native Personalization Studio and RT2.0 engine.…
Added 1 month ago
EM
Senior Software Engineer - Backend
Evertz Microsystems Limited
Burlington, ON
- Full-time
We are seeking a highly motivated Senior Software Engineer to join our growing engineering team. This role offers an exciting opportunity to design and build scalable, production grade…
Added 24 days ago
RR
Principal Android Engineer
Rakuten Rewards
Toronto, ON · CN-Yonge Sheppard Center
- Full-time
We are seeking a visionary Principal Android Engineer to lead the evolution of our client application architecture and platform capabilities. You’ll define and drive the technical direction…
Added 4 months ago
B
Applied AI Engineer
Bounteous
Montreal, Quebec
- Full-time
…production-focused role - not research or prototyping. We are looking for senior, hands-on full-stack engineers who have designed, built, and operated GenAI systems in production, and who…
Added 4 months ago
C
Java Full-stack Developer
Capgemini
Mississauga, Ontario
- Full-time
The Senior Engineer in Production Management will be responsible for the development and overall implementation of software in a complex critical and large cross departmental and…
Added 4 months ago
V
Sr. Infrastructure Engineer
VGS
Canada
- Full-time
As a Senior Infrastructure Engineer, you will be a key contributor and technical practitioner on our Platform Engineering team. You will help build, scale, and fortify global cloud…
Added 4 months ago
C++ Developer
Glint Tech Solutions LLC
Toronto, Ontario
We are partnering with one of Canada's leading institutional investors to find a Senior C++ Engineer who will directly impact global trade activities and deliver long-term value to 20M+…
Added 4 months ago
N
Senior Data Engineer
NimbleRx
Toronto, Ontario
- Full-time
As a Senior Data Engineer, you will own Nimble's data platform - the layer that every other team builds on to understand the business, ship product features, and meet our compliance…
Added 4 months ago
MF
Senior Software Development Engineer in Test
Magnet Forensics
Ottawa, Ontario · Toronto, Ontario · Waterloo, Ontario
- Full-time
We are seeking a highly skilled and experienced Senior Software Development Engineer in Test (SDET) to join our engineering team, supporting the development and deployment of our…
Added 4 months ago
S
Senior Site Reliability Engineer
SimCorp
Toronto, Ontario
- Full-time
As a Senior Site Reliability Engineer, you will be embedded within one of our Product Areas, taking ownership of specific responsibility domains where your experience, interests, and growth…
Added 4 months ago
P
Principal/Senior Software Engineer
PointClickCare
Mississauga, Ontario
- Full-time
Background with Spring Boot and Java ecosystem
Added 1 month ago
R
Senior Software Development Engineer, Recipient & Payment Experience
Remitly
Burnaby, BC
- Full-time
As a Senior Software Development Engineer on RPX, you will own meaningful features end-to-end across a Go-based backend and TypeScript frontend. You will partner with product, design, and…
Added 5 months ago
P
Développeur. euse logiciel. le sénior. e, Équipe DSB// Senior Software Developer- DSB team
Plusgrade
Montreal, Quebec
- Full-time
Développeur·euse logiciel·le sénior·e, Équipe DSB

Rakuten Rewards

Principal Android Engineer

Toronto, ON, Canada
CN-Yonge Sheppard Center, Canada

Full-time

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Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Nov 30, 2026
Experience: 15+ years of software engineering experience, including leadership roles.
Posting language: English
Posted: Sep 11, 2026

Original job description

Job Description:

Rakuten International is a division of Rakuten Group, Inc., a Japanese global technology leader in services that empower individuals, communities, businesses and society. Headquartered in San Mateo, California with more than 4,000 employees worldwide, the Rakuten International business portfolio includes market leaders in e-commerce, digital marketing, advertising, communications and entertainment. We create products and services that provide exceptional value by aligning members and the businesses that want to engage them in a shared community.

Rakuten is the most rewarding way to shop, giving millions of members Cash Back when they buy from their favorite brands. As a leading shopping platform, Rakuten partners with thousands of top brands across apparel, beauty and wellness, grocery, travel, on-demand services, subscriptions, and dining, helping members save on everyday purchases. Since 1999, Rakuten members have earned more than $4.6 billion in Cash Back, making it the largest Cash Back platform of its kind. Learn more at Rakuten.com.

Job Summary:

We are seeking a visionary Principal Android Engineer to lead the evolution of our client application architecture and platform capabilities. You’ll define and drive the technical direction for Android across core frameworks, dynamic rendering systems, and design system integrations that power scalable mobile experiences.

You will collaborate closely with product managers, designers, and engineering teams to deliver high-performance, accessible, and localized mobile applications. As a technical leader, you will shape reusable application frameworks, UI component systems, and SDK integrations that enable consistent and high-quality implementations across multiple client platforms.

This high-impact position influences architectural standards, mentor engineers, and champion best practices in performance, accessibility, localization, multi-region capabilities and platform scalability. If you are passionate about building foundational mobile platforms, enabling engineering excellence, and shaping the future of large-scale mobile applications, we want you on our team.

In this role, you will design, develop, and maintain software applications to meet user needs and business objectives. You will analyze requirements, write clean and efficient code, and collaborate with cross-functional teams to deliver scalable and user-friendly applications. Your role will involve debugging and improving existing applications, ensuring optimal performance, and integrating new features to enhance functionality. With a strong foundation in application development and problem-solving skills, you will contribute to creating innovative solutions that align with organizational goals.

Key Responsibilities:

Advises senior management of strategic opportunities and risks associated with emerging technologies and industry trends.
Applies advanced knowledge of software engineering principles to develop and implement solutions that meet complex business objectives.
Conducts advanced research and analysis to identify innovative approaches for improving system performance and scalability.
Consults on critical design and development decisions to ensure alignment with organizational strategy and compliance standards.
Devises robust architectures and frameworks that optimize application functionality and future scalability.
Leverage and guide adoption of modern AI and machine learning strategies, including generative AI and intelligent automation, to enhance developer productivity, optimize application capabilities, and drive innovation in mobile platform solutions.
Directs team to implement best practices and adhere to established standards for coding, testing, and deployment.
Define standards and best practices for API integration and client-service communication to ensure scalability, reliability, and maintainability across mobile platforms.
Drives cross-functional collaboration to ensure successful execution of high-priority projects.
Facilitates knowledge-sharing sessions to mentor less-experienced team members and advance organizational technical expertise.
Masters emerging technologies and adapts them to enhance the organization’s competitive position in the market.
Define and drive the long-term Android platform technical roadmap aligned with product strategy and business objectives.
Establish and participate in architecture governance and technical design review processes to ensure consistency, scalability, and adherence to engineering standards across client platforms.
Evaluate, pilot, and guide adoption of emerging technologies, frameworks, and tools that improve platform capabilities and developer productivity.
Identify, prioritize, and mitigate technical risks and architectural debt that could impact platform scalability, performance, and maintainability.
Drive improvements in developer experience (DX) through better tooling, automation, documentation, and reusable platform capabilities.

Qualifications:

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Expert in Android SDK, Android Studio, Kotlin, and Java.
Deep understanding of Android OS concepts, UI/UX and security best practices, and performance optimization.
Strong knowledge of architectural patterns such as MVVM, MVP, or Clean Architecture.
Experience with modularization, dependency injection (e.g., Dagger or Hilt), and reactive programming (e.g., RxJava, Coroutines).
Experience building large-scale, event-driven architectures using tools like Event Bus, LiveData, RxJava, or Coroutines/Flows
Expert with XML Views/Jetpack Compose.
Strong background in Agile methodologies, continuous improvement, and process automation.
Experience in coordinating with cross-functional teams to drive process improvements and ensure product quality.
Expertise in writing robust, maintainable, and testable code. Experience with code reviews, debugging, unit testing (using frameworks like JUnit, Robolectric), and UI testing (using Espresso).
Experience with global app deployments, feature flags, A/B testing, analytics and working in a monorepo environment
Portfolio of published applications on GitHub and/or the Play Store.
Experience leveraging AI tools and technologies to optimize or redesign engineering workflows, delivering measurable improvements in efficiency, quality, or productivity.
Familiarity with responsible and ethical AI practices, including risk assessment, bias mitigation, and ensuring quality, transparency, and accuracy in AI-assisted solutions.
Commitment to continuous AI skill development, including experience with prompt and context engineering, AI-assisted development workflows, or agent-based systems, and staying current with emerging AI technologies.
Strong problem-solving and communication skills.
Experience with Design Systems.
Knowledge of emerging technologies in mobile development is a plus.

Minimum Requirements:

Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
Solid written and verbal communication skills.
15+ years of software engineering experience, including leadership roles.

Five Principles for Success
Our worldwide practices describe specific behaviors that make Rakuten unique and united across the world. We expect Rakuten employees to model these 5 Shugi Principles of Success.

Always improve, Always Advance - Only be satisfied with complete success - Kaizen
Passionately Professional - Take an uncompromising approach to your work and be determined to be the best
Hypothesize - Practice - Validate – Shikumika - Use the Rakuten Cycle to succeed in unknown territory
Maximize Customer Satisfaction - The greatest satisfaction for our teams is seeing their customers smile
Speed!! Speed!! Speed!! - Always be conscious of time - take charge, set clear goals, and engage your team

Rakuten provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type. Rakuten considers applicants for employment without regard to race, color, religion, age, sex, national origin, disability status, genetic information, protected veteran status, sexual orientation, gender, gender identity or expression, or any other characteristic protected by federal, state, provincial or local laws.

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More about this job

Responsibilities

Lead the technical direction and architecture of the Android platform, focusing on scalable frameworks and design system integrations. Collaborate with cross-functional teams to drive the long-term technical roadmap and mentor engineers in best practices.

Requirements

Requires over 15 years of experience and a Master's degree, with expert-level proficiency in Android SDK, Kotlin, and Java. Candidates must have a strong background in architectural patterns, AI-assisted development, and large-scale mobile application deployment.

Skills

Android SDK
Kotlin
Java
Jetpack Compose
MVVM
Dagger
Hilt
Coroutines
RxJava
Unit Testing
UI Testing
Agile
Design Systems
AI Tools
API Integration
Modularization

Visa sponsorship

Not detected in the job text

Keywords

Android SDK
Android Studio
Kotlin
Java
MVVM
MVP
Clean Architecture
Dagger
Hilt
RxJava
Coroutines
Flows
Jetpack Compose
XML Views
JUnit
Robolectric
Espresso
Agile
Monorepo
A/B Testing
Generative AI
Prompt Engineering
AWS
Azure
DevOps
Cloud Computing
Design Systems
API Integration
Mobile Platform
SDK

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