Senior Full-Stack Software Engineer (Remote)

Join Tether and Shape the Future of Digital Finance At Tether, we’re not just building products, we’re pioneering a global financial revolution. 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. 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.
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.

Our team is a global talent powerhouse, working remotely from every corner of the world. 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.
You'll work across the JavaScript and TypeScript layer of our local AI stack. Depending on the project, you might build user-facing applications (mobile or desktop) or contribute to the platform layer that bridges our C++ inference engines with the app ecosystem. Either path puts you at the heart of making local AI usable: whether you're crafting polished product experiences or building the SDK and bindings that other developers rely on.
This role suits engineers who thrive in a full-stack JS environment and want to be part of a system where AI runs privately, locally, and fast.

Own React (Expo/Electron) app development with clean, modular architecture
Build UI using modern React stack (TypeScript, RN Navigation, Zustand/Recoil/Jotai)
Implement local first / local only apps
Integrate mobile apps with distributed systems, local inference, and p2p layers
Strong experience with REST/WebSockets, async flows, and secure data storage
Ability to build native modules (iOS/Android) when needed (with some help)
Good understanding of offline-first systems, caching, and performance
Comfortable integrating SDKs (payments, crypto, AI models, etc.)
Write reliable code: unit tests, E2E tests (Maestro/Appium/Playwright)
Experience with TypeScript across stack (frontend + backend)
Bonus: experience with distributed/P2P APIs, on-device ML, cryptography

• Expert-level proficiency in Node.js/JavaScript for backend development and React frontend framework
• Experience with performant data handling on constrained devices (via SQLite or similar)
• Proven experience building and scaling distributed systems or event-driven architectures
• Proficiency with databases, and a deep understanding of data modeling and optimization
• Solid understanding of networking, security principles, and best practices for production systems
• Experience with real-time data streaming and RPC implementations
• Ability to work independently in a remote environment and communicate effectively across time zones

Familiarity with AI/ML inference APIs and OpenAI-compatible endpoints
Previous experience building AI SaaS or PaaS platforms
Knowledge of GPU resource management and ML framework infrastructure
Contributions to open-source projects in relevant domains

Verify the recruiter’s identity. All our recruiters have verified LinkedIn profiles. If you’re unsure, you can confirm their identity by checking their profile or contacting us through our website.
If someone asks for personal financial information or payment at any point during the hiring process, it is a scam. Please report it immediately.
When in doubt, feel free to reach out through our official website.