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Member of Technical Staff, Hark Desktop

Hark· Product Engineering
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Hybrid (San Jose)$170k - $400kfull-timePosted 2w ago

About the role

Senior desktop engineering role building Hark's native desktop application (macOS and Windows) with deep C++/Rust, integrating multimodal AI capabilities, OS-level features, and end-to-end ownership from concept to production.

Responsibilities

  • Own features from concept and design through implementation and launch, serving as a desktop and native platform expert on the team.
  • Build the core of Hark's desktop app, while contributing to features across the full stack.
  • Build the native capabilities that make Hark multimodal on the desktop, including voice input, audio, screen understanding, and experiences where agents take actions on a user's behalf across apps and the web.
  • Integrate deeply with macOS and Windows so Hark feels at home on each platform, including system APIs, permissions, notifications, background processes, and connections to Hark hardware and other devices.
  • Design and implement clear, reusable API in languages like Rust, C++, Typescript, Go, along with the tooling and infrastructure used to build, test, and deploy them.
  • Partner with researchers and model engineers to bring new model capabilities to the desktop quickly, building foundations that shorten the path from research to product.
  • Uphold engineering excellence through performance profiling, testing, monitoring, and secure handling of user data, including personal memory, screen content, and conversation history.

Qualifications

  • 4+ years of experience building technically complex features end-to-end.
  • Strong Rust/C++ development skills, especially in browser environments such as Chromium or Electron-like application frameworks.
  • Experience building desktop applications on macOS and Windows, including OS-level integration.
  • Proven track record of making native applications fast, stable, and efficient, with attention to memory, CPU, and startup performance.
  • Creativity and ownership in ambiguous problems. You identify the most important work, move quickly from prototype to production, and learn the AI systems your products are built on.

Skills

Required:RustC++Browser-like application frameworks (Chromium/Electron)macOS and Windows desktop app developmentPerformance optimization
Last updated Oct 8, 2026. Interested? Apply on the company site.
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About Hark

building the most advanced personal intelligence in the world.

At Hark, we are building the most advanced personal intelligence in the world.

personal intelligenceartificial intelligence
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