Staff Software Engineer - MacOS App

Your Experience at a Glance

We are hiring a Staff Software Engineer – macOS App for SAMMY, a trailblazing AI company redefining global communication with real-time speech transformation. In this role, you’ll lead the macOS client development of our flagship desktop app, working across C++, Flutter, and RESTful APIs to deliver performant and secure user experiences for enterprise environments. This is a high-impact opportunity to build a world-class macOS application used by Fortune 100 clients and to shape the future of real-time speech and sound intelligence.

About SAMMY (Client Code Name)

SAMMY is building the world’s first real-time speech understanding and modulation platform, with capabilities including accent transformation, background noise elimination, and speech enhancement. Backed by $ 100 M+ in funding from leading investors such as Insight Partners, Google Ventures, General Catalyst, and Quadrille Capital, SAMMY’s team of 200+ is working with some of the world’s largest enterprises to transform how people communicate. With a foundation in AI and voice intelligence, SAMMY is pioneering the next era of sonic productivity across contact centres, enterprise collaboration, and beyond.

Role Overview – Staff Software Engineer (macOS App) You will lead the design and development of SAMMY’s macOS application, focusing on seamless integration between the C++ SDK, Flutter frontend, and backend APIs. You’ll bring deep knowledge of macOS build environments, packaging, performance, and UI conventions, helping create a native, secure, and highly reliable desktop experience.

Key Responsibilities

• Lead macOS-specific development of the desktop application using C++, Flutter, and RESTful APIs
• Own implementation and optimisation of high-quality components within the C++ SDK
• Build performant, responsive, and intuitive interfaces using Flutter aligned with macOS Human Interface Guidelines
• Manage integration with backend services, including authentication, PostgreSQL, and Clickhouse
• Implement best practices in unit and integration testing, deployment readiness, and code quality
• Handle complex debugging scenarios across the desktop UI, SDK, and backend APIs
• Ensure macOS packaging, notarization, and release compliance (.app bundles, entitlements, etc.)
• Contribute to documentation and architecture decisions
• Mentor junior developers on macOS patterns, architecture, and performance tuning
• Participate in architecture reviews and product planning cycles

Must-Have Qualifications

• Bachelor’s or Master’s degree in Computer Science or a related field
• 8–12 years of hands-on software engineering experience
• Deep experience in at least one of the following: ○ C++ development, including SDK-level work Flutter frontend development for desktop RESTful API integration in client apps
• Familiarity with macOS development environments, including Xcode, macOS build systems, and code signing
• Experience with macOS packaging and notarization workflows
• Understanding of desktop app security, UAC, and user permissions
• Proficiency in Git and collaborative engineering practices
• Solid problem-solving and architectural thinking
• Ability to work autonomously and mentor others effectively

Preferred Qualifications

• Familiarity with Cocoa, Objective-C, or Swift for deep macOS integration
• Knowledge of macOS UI/UX conventions and accessibility guidelines
• Experience optimizing performance for desktop applications
• Exposure to CI/CD pipelines for desktop deployment
• Contributions to open-source projects in C++ or Flutter
• Experience working in agile and cross-functional teams
• Background in real-time systems or voice/speech platforms

Why Join SAMMY?

• Shape the future of sonic AI and real-time speech transformation
• Work on a high-impact product with global enterprise adoption
• Be part of a world-class team solving deeply technical challenges
• Enjoy a hybrid work culture with autonomy and purpose