Lead Android Engineer

Want to help millions focus better — and build something from the ground up?

We’re hiring a Lead Android Engineer to bring Opal to Android.

You’ll build the Android version of our iOS app from scratch — shaping the architecture, design and choosing the stack. You’ll also work closely with our iOS team (Matt, Alec, Peter, Julien, Konrad, Thibaud) to ensure a seamless experience across platforms.

This is a rare opportunity to own the entire Android product and help shape the experience of millions.

Why this role

At Opal, we're building tools to help people reclaim their time and focus on what truly matters.

Here’s why this is the perfect moment to join:

• Product Launch: You’ll play a key role in bringing Opal to Android, helping us reach a new audience and scale our impact.

• Ownership & Impact: You’ll take the lead on Android development, defining the tech stack, making architectural decisions, and ensuring high-quality execution.

• Your Role in Growth: You’ll be our 7th engineer, stepping into a fast-growing company where your work will directly shape the future of focus and productivity.

What you’ll do

As a Lead Android Engineer, you’ll take a hands-on role in launching and improving our app ecosystem:

• Build Opal for Android: Develop, test, and launch the first Android version of Opal, ensuring a smooth and seamless experience for our Gems.

• Own Android Architecture: Define the tech stack, set up best practices, and implement scalable, maintainable solutions.

• Cross-Platform Collaboration: Work closely with our iOS engineers to ensure consistency across platforms.

• Feature Development: Implement new features, refine UX, and optimize performance.

• Quality & Performance: Maintain high standards of usability, security, and efficiency.

• User-Centric Innovation: Identify opportunities to improve the Android experience based on feedback and data.

• Continuous Improvement: Address bugs, enhance performance, and keep the app ahead of industry trends.

• Mentor & Guide: As the Android lead, share knowledge and set the foundation for future Android hires.

What you bring

• 6+ Years of Android Development: Strong experience building and launching Android applications.

• Proven Track Record: At least one high-quality app published on Google Play.

• Technical Expertise:

  • Proficient in Kotlin and Jetpack Compose.

  • Strong knowledge of Android SDK, MVVM, and dependency injection frameworks (e.g., Hilt, Dagger).

  • Experience with Firebase, push notifications, and cloud messaging.

  • Familiarity with REST APIs, GraphQL, and WebSockets.

  • Strong Git knowledge and CI/CD experience.

• Quality-Driven: Skilled in creating unit tests, UI tests, and ensuring high code quality.

• Independent & Resourceful: You thrive in fast-paced environments and take full ownership of projects.

• Aligned with Our Mission: A passion for saving people’s time, improving their well-being, and mindfulness.

• AI Enthusiast: Interest in AI and how it can enhance digital wellness.

Why Opal

• Mission-Driven Impact: We are on a mission to help 1Bn people to focus better every day. We’ve empowered our community to save 200M+ hours and counting.

• Ownership: This is a rare opportunity to own the entire Android development process in a fast-moving startup.

• Collaborative Culture: Work with a small, high-impact team that gathers quarterly for meetups and learning. Nearly $1M in Revenue per Employee.

• Growth & Recognition: Join a top-30 US productivity app with competitive compensation and early equity. 4.8/5 rating on 60k+ reviews.

• Well-Supported: Backed by world-class investors and founders of companies like Pinterest, Snapchat, and Revolut.

If you’re ready to shape the future of focus and productivity, we’d love to meet you!

— The Opal Team