Software Engineer, Desktop

About this role

ABOUT ACTAI

There are over 5 billion users using basic applications today such email, notes, tasks, calendar and they're not AI-native. Our mission is to build proactive applications for anyone in the world, who are not used to complex prompting. We aim to bring intelligence to conversations, errands, organising and workflows, with minimal to no prompting.

Our first application is an agent-first mobile communication app. We believe building applications that users use daily for communication, coordination and collaboration needs will help integrate AI into their lives. The net effect is to eliminate misinformation, achieve low coordination costs, enable high quality tasks and collaboration at scale with minimal or little prompting.

ROLE

You will own how this system behaves on desktop environments. Your work focuses on reliability, performance, and real-time behavior in production desktop applications.

FOCUS

• Build and maintain cross-platform desktop applications using Electron.

• Design responsive and scalable UIs for real-time collaboration.

• Implement desktop-specific functionality including file system access, native notifications, auto-updates, and deep linking.

• Integrate AI-powered features (chat, agents, AI assistance) via backend APIs.

• Optimize startup time, memory usage, and runtime performance.

• Profile and reduce Electron overhead.

• Manage large local state and message history efficiently.

• Ensure smooth real-time updates (messages, typing indicators, presence).

• Maintain stability across macOS and Windows environments.

IDEAL EXPERIENCES

• Proven software engineering experience.

• Hands-on experience building production Electron applications.