Lead Native App Engineer

Umbrel; Poland; On-site; PLN 200,000 - 300,000; Full time

Job summary

A tech company in Poland is seeking a Lead Native App Engineer to own the entire codebase for an exciting new project. The ideal candidate will have a strong background in developing native apps for iOS and Android using React Native, with experience in frameworks like Expo. You will also be comfortable building desktop apps and should have a passion for the user experience while maintaining clear communication with the team. This role offers the chance to work autonomously while also supporting team members.

Qualifications

• Strong background in developing native apps for iOS and Android using React Native.
• Experience with platforms like Expo.
• Comfortable building desktop apps with frameworks like Tauri or Electron.
• Strong focus on performance, animations, offline states, and edge cases.
• Ability to dive into native code when needed and troubleshoot complex build systems.
• Autonomous worker who also enjoys sharing knowledge with teammates.
• Empathetic to users and focused on delivering great user experiences.
• Excellent written and verbal communication for async collaboration.
• Wamiliarity with cross‑platform reasoning across frameworks and platforms.

Responsibilities

• Take full ownership of the entire codebase end-to-end.
• Focus on performance, animations, and user experience.
• Support teammates and share knowledge.

Skills

Native app development for iOS

Native app development for Android

React Native

Expo

Desktop app frameworks

Tauri

Electron

User experience focus

Clear communication

Generalist across frameworks

Tools

Expo

Electron

Tauri

Job description

We're looking for a Lead Native App Engineer to join our team and take full ownership of an exciting new, unannounced project. 👀

We hope you are someone who:

• Feels a deep sense of ownership over the apps you build, because you’ll own this entire codebase end-to-end.
• Has a strong background in developing native apps for iOS and Android using React Native, preferably with experience using platforms like Expo.
• Is comfortable building for the desktop and has experience with frameworks like Tauri or Electron.
• Obsessively sweats the details: performance, animations, offline states, edge cases, and the stuff most people ignore.
• Has a hacker’s spirit; unafraid to dive into native code when needed, or figure out a gnarly build system issue.
• Thrives when given full autonomy, but also loves supporting teammates and sharing knowledge.
• Cares deeply about the user experience and tries to see every problem through the user’s eyes.
• Communicates clearly and frequently (we do a lot of async writing and reading).
• Enjoys being a generalist who can stretch across frameworks and platforms.
• Is naturally curious and always looking to learn the “why” behind the “how”.
• Balances craft with pragmatism - knows when to polish, and when to just ship.