Javascript Senior Software Engineer (AI SDK)

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Overview

Join Tether and shape the future of digital finance. As a Senior SDK Developer, you will contribute to the development of the new and cutting-edge Tether AI SDK.

We are a global team delivering innovative fintech solutions, with a remote-first culture. This role focuses on developer-facing SDKs and system integration within the Tether ecosystem.

Responsibilities

  • Developer-Facing SDKs & APIs: 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: ensure SDKs are fast, lightweight, and reliable; 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: embed best-in-class security practices into the SDK architecture, including secure communication, encrypted storage, and rigorous input validation to provide safe integration pathways for developers.
  • Collaborate with teams to integrate with Node.js/JavaScript production environments and ensure high-quality, maintainable code.

Qualifications

  • 6+ years of experience with Node.js/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 design.
  • Experience participating in the development of a complex platform.
  • Experience with AI domain applications (RAG, Agents, Inference, AI SDKs).
  • Ability to quickly learn new technologies.
  • Good understanding of security practices.

Nice to have

  • Familiarity with Peer-to-Peer technologies (Kademlia, BitTorrent, libp2p).
  • Comfortable with high-availability concepts.
  • Rust or C++ skills are a plus.
  • Familiarity with real-time data delivery (NodeJS/other streaming).

Seniority level

  • Not Applicable

Employment type

  • Full-time

Job function

  • Information Technology

Industries

  • Technology, Information and Internet
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Location:
United Kingdom
Salary:
£80,000 - £100,000
Job Type:
FullTime
Category:
IT & Technology