
Javascript Senior Software Engineer (AI SDK)
- London
- Permanent
- Full-time
Tether is committed to delivering world-class developer experiences through robust and intuitive SDKs. You will design, build, and maintain modular, versioned SDKs that abstract complex backend logic into clean, usable interfaces — enabling seamless integration with Tether’s platform across various client environments.Performance & Reliability at Scale
SDKs must be fast, lightweight, and reliable — even when performing heavy and demanding operations. You’ll design resilient logic (retry policies, offline handling, batching) and contribute to the scalability of platform-facing interfaces and services powering the SDKs.Security-First Engineering
You’ll embed best-in-class security practices directly into the SDK architecture, including secure communication, encrypted storage and rigorous input validation. Your work will help ensure safe integration pathways for all developers working with the Tether ecosystem.+6 years of experience working with Nodejs/JavaScript in production environments.Proven track record in designing and maintaining developer-facing SDKs (npm packages, API clients, or instrumentation libraries)Strong understanding of modular architecture, versioning strategies, and semantic API designHave actively participated in the development of a complex platformAbility to quickly learn new technologiesGood understanding of security practicesNice to haveFamiliar with Peer-to-Peer technologies (Kademlia, bittorent, libp2p)Comfortable with high-availability conceptsRust or C++ skills are a plusFamiliar with AI domain applications (RAG, Agents, Inference, AI SDKs)Familiarity with real-time data delivery (NodeJS/other streaming)
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