Javascript Senior Software Engineer (AI SDK)

Tether.io; United Kingdom; Remote; GBP 70,000 - 100,000; Full time

Job summary

Join Tether as a Senior SDK Developer to drive the innovative development of Tether AI SDK. You'll focus on creating modules that enhance developer experiences and ensure secure and efficient integration. Be part of a dynamic team in the fintech sector focused on pushing the boundaries of technology and human potential.

Qualifications

• 6+ years of experience with Node.js/JavaScript in production environments.
• Proven record in designing and maintaining developer-facing SDKs.
• Strong understanding of versioning strategies and semantic API design.

Responsibilities

• Design, build, and maintain modular, versioned SDKs for Tether’s platform.
• Ensure SDKs are fast, lightweight, and reliable under heavy operations.
• Implement best-in-class security directly into the SDK architecture.

Skills

Node.js

JavaScript

modular architecture

security practices

Job description

3 days ago Be among the first 25 applicants

Get AI-powered advice on this job and more exclusive features.

Join Tether and Shape the Future of Digital Finance

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.

Innovate with Tether

Tether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services.

But that’s just the beginning:

Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art, geo-diverse facilities.

Tether Data: Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET, our flagship app that redefines secure and private data sharing.

Tether Education: Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity.

Tether Evolution: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways.

Why Join Us?

Our team is a global talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry.

If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you.

Are you ready to be part of the future?

About the job:

As a Senior SDK Developer, you will be a part of the team that works on the development of the new and cutting edge Tether AI SDK.

• Developer-Facing SDKs & APIs 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 design
• Have actively participated in the development of a complex platform
• Ability to quickly learn new technologies
• Good understanding of security practices
  
  

Nice to have

• Familiar with Peer-to-Peer technologies (Kademlia, bittorent, libp2p)
• Comfortable with high-availability concepts
• Rust or C++ skills are a plus
• Familiar with AI domain applications (RAG, Agents, Inference, AI SDKs)
• Familiarity with real-time data delivery (NodeJS/other streaming)

Seniority level

• Seniority level

  Not Applicable

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  Technology, Information and Internet

Referrals increase your chances of interviewing at Tether.io by 2x

Sign in to set job alerts for “Senior Software Engineer” roles.

Manchester, England, United Kingdom 1 week ago

London, England, United Kingdom 1 month ago

Software Engineering Lead (Flutter) - Catalyst

Senior React Native Engineer - Outside of IR-35

Engineering Manager (Remote - Multiple locations)

London Area, United Kingdom $100,000.00-$120,000.00 2 weeks ago

London, England, United Kingdom 5 months ago

London, England, United Kingdom 1 month ago

Mid-level - Senior Software Engineer - Financial Reporting

London, England, United Kingdom 3 months ago

Lytchett Matravers, England, United Kingdom £45,000.00-£55,000.00 1 month ago

London, England, United Kingdom £90,000.00-£130,000.00 1 month ago

Senior Software Engineer, Node.js, London (Remote)

London, England, United Kingdom 2 weeks ago

London, England, United Kingdom £92,000.00-£107,000.00 1 month ago

Senior Backend Developer (f/m/d) Remote (Europe)

London, England, United Kingdom 1 week ago

London, England, United Kingdom 2 days ago

Senior Backend Developer - Node (Fully Remote, Worldwide)

Senior Backend Developer - Node (100% Remote - UK)

Senior Java Developer - Remote - up to £95K

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.