Senior Software Engineer

Summary

Join Tether and be a part of a team building desktop and mobile AI applications using cutting-edge Tether SDKs. As a Senior Software Developer, you will develop and maintain backend services and APIs for AI-enhanced desktop applications, ensuring intelligent features and native-like responsiveness across platforms. You will collaborate with other teams to design APIs, manage concurrent model invocations, and optimize resource usage for smooth AI performance on devices. The ideal candidate will have extensive experience with Nodejs/JavaScript, desktop app development, and React Native, along with a strong understanding of security practices and the ability to quickly learn new technologies. 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)