Android Developer - Java/Kotlin, Mobile Security

Senior Android Developer (Java/Kotlin, Mobile Security) – Waterloo/Toronto (Hybrid)

Location: Waterloo / Toronto
Work Type: Hybrid, 3 days/week, 8:30 AM – 5:00 PM EST

Overview

We are seeking a Senior Android Developer to design, develop, and maintain advanced applications for Android devices. You will work closely with cross-functional teams to deliver high-quality, scalable, and secure mobile solutions.

Key Responsibilities

• Design, build, and maintain Android applications using Java and Kotlin.
  
• Collaborate with product owners, UX/UI designers, and backend developers to define and ship new features.
  
• Integrate apps with external data sources and RESTful APIs.
  
• Write robust unit and automated tests to ensure code quality, usability, and reliability.
  
• Optimize application performance, memory usage, and offline storage.
  
• Implement mobile security best practices, including root detection, anti-tamper controls, and secure coding standards.
  
• Participate in code reviews, knowledge sharing, and mentoring.
  
• Contribute to CI/CD pipelines and DevOps practices to streamline releases.
  
• Continuously explore new technologies and tools to improve development efficiency.
  
  

Required Skills & Qualifications

• Proficiency in Java and Kotlin for Android development.
  
• Strong experience with Android SDK & core components.
  
• Knowledge of mobile security: root detection, anti-tamper, secure coding.
  
• Familiarity with RESTful APIs, HTTP, JSON parsing, and networking libraries.
  
• Experience with offline storage, threading, and performance optimization.
  
• Solid understanding of version control tools (Git).
  
• Familiarity with cloud messaging and push notification frameworks.
  
• Experience with automated testing frameworks (Espresso, JUnit).
  
• Strong problem-solving skills and attention to detail.
  
• Excellent verbal and written communication skills.
  
  

Preferred Skills

• Experience with C/C++ and JNI for native Android development.
  
• Familiarity with Agile, DevOps, and test-driven development principles.
  
• Experience with CI/CD tools (Jenkins), SQLite, and Spring framework.
  
• Knowledge of UI/UX prototyping tools (Sketch, InVision).
  
• Experience with multimedia creation/editing (video, graphics).
  
  

Education & Experience

• Bachelor’s degree in Computer Science, Software Engineering, IT, or related field.
  
• 5+ years of professional Android development experience.