Senior Android Engineer

Jobtailor; Toronto; On-site; CAD 120,000 - 160,000; Full time

Job summary

Jobtailor is seeking an experienced Android Engineer to build elegant, high-performance mobile applications. You will own features end-to-end, collaborating with product, design, backend, data science, and QA to deliver user-focused solutions.

You will optimize performance, reliability, and developer productivity while shaping architecture and reusable components. Mentorship and code reviews are encouraged to foster a collaborative, high-performing team culture.

Qualifications

• 5+ years of professional experience building Android applications.
• Strong proficiency with Android System Architecture, Kotlin and the Android SDK.
• Experience with MVVM, MVI, or similar architectures.
• Hands-on experience with Jetpack libraries, Kotlin Coroutines, Flow, dependency injection, and asynchronous programming.
• Experience building user-facing features with a strong eye for product quality, performance, and maintainability.
• Ability to lead complex technical projects, break down ambiguous problems, and drive execution across teams.
• Strong debugging skills and experience improving app performance, stability, and reliability.
• A collaborative mindset and strong communication skills across engineering, product, design, and cross-functional partners.
• Experience mentoring other engineers and influencing technical direction through design docs, architecture discussions, and code reviews.
• Proven ability to thoughtfully leverage AI-assisted development tools to accelerate software delivery, improve code quality, support debugging and testing, and enhance engineering workflows.
• Sound technical judgment when using AI-generated output, including the ability to review, validate, and refine suggestions for correctness, scalability, security, and maintainability.
• Bachelor’s degree in Computer Science or equivalent practical experience.

Responsibilities

• Build elegant, performant, and reliable Android experiences using Kotlin.
• Lead the full lifecycle of mobile features, from technical design and implementation through testing, release, measurement, and iteration.
• Collaborate closely with Product Managers, Designers, Backend Engineers, Data Scientists, QA, and other partners to deliver user-focused solutions.
• Improve app performance, stability, observability, accessibility, and developer productivity.
• Contribute to Android architecture, shared platform components, design systems, and reusable libraries.
• Help evolve our engineering practices around code quality, testing, maintainability, scalability, and release confidence.
• Debug complex production issues and use data, logging, and experimentation to guide improvements.
• Mentor engineers, provide thoughtful code reviews, and help foster a collaborative, inclusive, and high-performing team culture.

Skills

Kotlin

Android SDK

MVVM

MVI

Jetpack Compose

Coroutines

Flow

Dependency Injection

Code reviews

AI-assisted development

Education

Bachelor's degree in Computer Science

Job description

• Build elegant, performant, and reliable Android experiences using Kotlin and modern Android development practices
• Lead the full lifecycle of mobile features, from technical design and implementation through testing, release, measurement, and iteration
• Collaborate closely with Product Managers, Designers, Backend Engineers, Data Scientists, QA, and other partners to deliver user-focused solutions
• Improve app performance, stability, observability, accessibility, and developer productivity
• Contribute to Android architecture, shared platform components, design systems, and reusable libraries
• Help evolve our engineering practices around code quality, testing, maintainability, scalability, and release confidence
• Debug complex production issues and use data, logging, and experimentation to guide improvements
• Mentor engineers, provide thoughtful code reviews, and help foster a collaborative, inclusive, and high-performing team culture

Requirements

• 5+ years of professional experience building Android applications
• Strong proficiency with Android System Architecture, Kotlin and the Android SDK
• Experience with modern Android architecture patterns such as MVVM, MVI, or similar approaches
• Hands‑on experience with Jetpack libraries, Kotlin Coroutines, Flow, dependency injection, and asynchronous programming
• Experience building user‑facing features with a strong eye for product quality, performance, and maintainability
• Ability to lead complex technical projects, break down ambiguous problems, and drive execution across teams
• Strong debugging skills and experience improving app performance, stability, and reliability
• A collaborative mindset and strong communication skills across engineering, product, design, and cross‑functional partners
• Experience mentoring other engineers and influencing technical direction through design docs, architecture discussions, and code reviews
• Proven ability to thoughtfully leverage AI‑assisted development tools to accelerate software delivery, improve code quality, support debugging and testing, and enhance engineering workflows
• Sound technical judgment when using AI‑generated output, including the ability to review, validate, and refine suggestions for correctness, scalability, security, and maintainability
• Bachelor’s degree in Computer Science or equivalent practical experience.