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
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Build and maintain cross-platform desktop applications using Electron, TypeScript and React
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Develop interfaces for messaging, real-time collaboration and AI-powered features
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Implement desktop functionality including file system access, notifications, auto-updates and deep linking
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Integrate backend APIs and WebSockets for real-time messaging, presence and streaming responses
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Manage local storage, application state and message history
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Optimise application startup time, memory usage and runtime performance
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Debug production issues and maintain application stability across macOS and Windows
Requirements
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3+ years of software engineering experience, including building production Electron applications
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Strong proficiency in JavaScript, TypeScript and React
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Experience with Electron architecture, main and renderer processes, and IPC communication
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Experience integrating REST APIs, WebSockets and real-time data updates
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Understanding of desktop application lifecycle, native OS integrations and application packaging
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Experience with local storage technologies such as SQLite, IndexedDB or file systems
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Strong debugging and performance profiling skills across macOS and Windows
Nice to Have
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Experience building chat, messaging or collaboration applications
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Experience with Electron auto-updates, code signing and application distribution
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Experience integrating LLM APIs, AI agents or streaming AI responses
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Experience with native Node.js modules or platform-specific integrations
Desktop Engineer (Electron) in London employer: BJAK
ActAI is an exceptional employer that fosters a high-performance culture where every team member is empowered to contribute directly to the company's success. With a focus on continuous improvement and employee development, we offer robust frameworks for performance management and career growth, all within a dynamic and fast-paced environment. Our commitment to innovation and efficiency ensures that you will be part of a team that values your insights and encourages independent thinking, making it a truly rewarding place to work.
