Senior Software Engineer

Summary

Join Tether and be a part of a team building cutting-edge desktop and mobile AI applications using the Tether SDK. As a Senior Software Developer, you will develop and maintain backend services and APIs for AI-enhanced desktop applications, ensuring native-like responsiveness and cross-platform consistency. You will collaborate with desktop and React Native teams to shape API contracts, handle concurrent model invocations, and manage GPU/CPU workloads. The ideal candidate will have 6+ years of experience with Nodejs/JavaScript, experience with desktop app development (Electron, Tauri, or similar), and experience working with React Native or bridging backend systems into mobile/desktop hybrid stacks. The role requires expertise in optimizing performance and resource usage on desktop/mobile clients and a good understanding of security practices. Tether offers the opportunity to work remotely and collaborate with a global team of talented individuals.

Requirements

• +6 years of experience working with Nodejs/JavaScript
• Experience with Desktop app development (Electron, Tauri, other)
• Experience working with React Native or bridging backend systems into mobile/desktop hybrid stacks
• Experience optimizing performance and resource usage on desktop/mobile clients
• Have actively participated in the development of a complex platform
• Ability to quickly learn new technologies
• Good understanding of security practices

Responsibilities

• Develop and maintain backend services and APIs that power AI-enhanced desktop applications
• These services support intelligent features like local inference, contextual awareness, and model interaction, tailored specifically for Electron-based or hybrid clients
• Shape API contracts that reflect platform constraints and performance considerations — ensuring native-like responsiveness and cross-platform consistency
• Contribute to backend services that handle concurrent model invocations, manage GPU/CPU workloads, and intelligently queue or throttle requests based on system constraints — ensuring smooth AI on-device performance

Preferred Qualifications

• Familiarity with secure inter-process communication
• Familiar with Peer-to-Peer technologies (Kademlia, bittorent, libp2p)
• C++/Swift/Kotlin skills are a plus
• Familiar with AI/Agentic domain applications (RAG, AI SDKs)
• Familiarity with real-time data delivery (NodeJS/other streaming)