Mid/Senior Android SDK Engineer

LoopMe is a software company that builds software products and services for the advertising industry. LoopMe was founded in 2012 and today is a global company with 300+ employees. As the global leader in brand performance, we use AI-powered technology to redefine brand advertising for the digital and app ecosystem.

As a Junior Android SDK Engineer, you will begin your career in mobile advertising technology, contributing to SDKs that help gaming and app developers monetize their applications through advertising revenue. You will work alongside experienced engineers who will mentor you as you develop expertise in SDK architecture, performance optimization, and the mobile advertising ecosystem.

You will be part of our Android efforts and will work closely with our iOS development team, QA team, and senior engineers who will guide your professional growth.

Key Skills & Experience

Required:

• Bachelor's degree in Software Engineering, Computer Science, or a related technical field
• Strong English communication skills, both spoken and written — essential for daily collaboration with our international team across USA, Poland, and Ukraine
• Experience with AI-assisted development tools (e.g., GitHub Copilot, Claude Code) to accelerate coding workflows, learning, and problem-solving
• 7+ years of commercial or substantial personal project experience with mobile development
• 4+ years of commercial or substantial personal project experience with Android development
• SDK development experience
• Foundational knowledge of Kotlin and Java
• Exposure to MVVM, MVP, or Clean Architecture patterns
• Understanding of core Android concepts:
  - Activities, Fragments, Services
  - Application lifecycle and state management
  - UI development (XML layouts, Jetpack Compose basics)
  - Concurrency
  - Networking libraries (Retrofit, OkHttp)
• Familiarity with Android Studio and Gradle build system
• Best software testing practices
• Basic understanding of RESTful APIs and JSON data handling
• Basic knowledge of iOS/Swift development
• Experience with Git version control

Nice-to-Have:

• Published apps on Google Play Store
• Familiarity with GitHub Actions or CI/CD concepts

Key Responsibilities

• Learn and contribute to our advertising-focused SDKs under the guidance of Staff level engineers
• Assist in building and maintaining test apps used by developers and QA to validate SDKs
• Continuously learn and improve Claude Code workflows to enhance code quality, productivity, and efficiency in Android SDK development
• Write clean, efficient, and well-documented code following team standards
• Participate in code reviews to learn best practices and provide peer feedback
• Help investigate and debug creative rendering issues with support from the team
• Collaborate with Product Manager, Engineering Manager, and senior developers on feature implementation
• Write and maintain unit tests for SDK components
• Contribute to technical documentation for SDK integration
• Stay updated with Android development trends and share learnings with the team

What You'll Learn

• SDK architecture and design principles for mobile advertising
• Performance optimization techniques (memory profiling, startup time, battery usage)
• Integration patterns with third-party ad networks and mediation platforms
• Master Claude Code as a code assist tool to boost development speed and code quality
• WebView and HTML5 content rendering in native Android apps
• Cross-platform collaboration with iOS teams
• CI/CD workflows and automated testing for SDK releases
• Real-world experience with code that reaches millions of users

Benefits

What We Can Offer

• Hybrid working meaning you can split your time between the office and home
• 1 month work from anywhere
• Self Managed Vacation Policy (no max on annual leave!)
• Healthcare
• 401k
• LoopMe Gives Back; we have a committed and active CSR team who organize regular events to hold up our pillars of Learning, Charity, Wellbeing, Responsibility and Sustainability
• We'll set you up for success, providing training and career development
  

Want to learn more about us?

Head to our Careers page to see why we've been voted one of Campaign's Best Places to Work 2023! You can find out more about our values, initiatives, teams and benefits here. (Can't see the hyperlink? Find us here https://loopme.com/contact/careers/)LoopMe is a technology company that uses AI to improve brand advertising performance and outcomes. Putting consumers at the heart of every campaign, LoopMe uniquely optimizes advertising investments, driving results 2-5x higher than the industry standards in mobile in-app and CTV for brand awareness, consideration, purchase intent, foot traffic and sales. LoopMe was founded in 2012 and is headquartered in the UK, with global offices across New York, Boston, Atlanta, Chicago, Detroit, San Francisco, Los Angeles, Toronto, Singapore, Sydney, Tokyo, Dnipro, Krakow and Hong Kong.