Senior Desktop Systems Engineer

Project overview 
Group107 is looking for a Senior Desktop Systems Engineer to join a client project - Othello, a SalesTech startup building a real-time AI platform that empowers sales professionals to succeed in every conversation. The platform integrates with calendar, email, and CRM, delivering smart pre-meeting insights, live in-call guidance, and post-call performance analysis (buyer sentiment, action items, recommendations).
 

You will join an early-stage, well-funded team (pre-seed at $20M valuation, backed by Long Journey Ventures and founders of DoorDash, Axonius, Exodigo, and Chime) at a critical moment — just before the seed round — with enterprise pilots already running with companies of $10B+ market cap, including U.S. Steel.

     Responsibilities

• Build and improve a high-performance desktop application across macOS and Windows
• Own OS-level behavior including window management, lifecycle, background processes, system events, permissions, notifications, installers, auto-updates, and device or app integrations
• Design and implement native modules and system-level integrations where needed
• Work across Electron, native code, and desktop architecture to push the product far beyond a typical web app in a shell
• Help define how the application is structured across processes, IPC boundaries, native capabilities, and the frontend layer
• Drive performance, responsiveness, stability, and correctness across the desktop stack
• Contribute to product experience and interaction quality, especially where desktop behavior directly shapes UX

• Take full ownership of complex desktop problems end-to-end, from architecture to delivery, with minimal supervision

   

  Requirements

• 8+ years of professional software engineering experience
• 3+ years of hands-on experience building production desktop applications
• Strong experience building desktop software on macOS and/or Windows
• macOS: Advanced knowledge of Swift (Objective-C is a plus)
• Windows: Strong experience with Rust or C++ (C# is acceptable)
• Deep understanding of operating system behavior and desktop application architecture
• Strong grasp of system-level concerns: process architecture, memory and CPU usage, IPC, permissions, windowing, file system access, auto-updates, and OS integrations
• Ability to reason about low-level implementation details while keeping product quality high
• Experience designing software that feels truly native on macOS and Windows
• Experience with Electron in production
• Solid React knowledge and frontend sensibility
• Strong engineering judgment, problem-solving ability, and high execution standards
• Ability to look at the product from a user perspective and care deeply about responsiveness, smoothness, and correctness
• English — Advanced (C1) or higher

     Soft Skills

• Very strong written and verbal communication skills
• High ownership — drives problems to resolution without micromanagement
• Self-sufficient and comfortable operating with minimal task-level direction
• Strong product mindset — evaluates engineering decisions through the lens of end-user experience
• Ability to take on hard engineering problems and solve them properly
• Comfortable in an early-stage, fast-moving startup environment

     Nice to Have

• Experience publishing apps to the Mac App Store and/or Microsoft Store
• Familiarity with code signing, notarization, and update channels (Sparkle, Squirrel, etc.)
• Experience with audio/video capture, accessibility APIs, or system-wide overlays
• Exposure to AI-powered product features or real-time data pipelines
• Experience working with FastAPI / Python backends or GCP infrastructure