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TETether Operations Limited

Senior Fullstack Engineer(m/w/x)

Zürich
Full-timeRemoteSenior
AI/ML

Building user-facing mobile/desktop apps and SDKs for reserve-backed token integration at a digital token platform, bridging C++ inference engines. Expert Node.js/JavaScript/React skills, plus distributed systems and constrained device data handling experience required. Global reach for digital token transactions.

Requirements

  • 5+ years Fullstack development experience
  • Expert Node.js/JavaScript backend, React frontend proficiency
  • Performant data handling on constrained devices (SQLite or similar) experience
  • Experience building/scaling distributed systems or event-driven architectures
  • Containerization (Docker) and orchestration (Kubernetes) experience
  • Database proficiency, data modeling and optimization understanding
  • Solid understanding of networking, security, production best practices
  • Real-time data streaming and RPC implementations experience
  • Independent remote work ability, effective cross-timezone communication
  • Experience with peer-to-peer technologies (Hyperswarm, libp2p, WebRTC) or similar distributed communication protocols
  • 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
  • Understanding of WebAssembly or edge computing paradigms
  • Contributions to open-source projects
  • Excellent English communication skills

Tasks

  • Build user-facing mobile applications.
  • Build user-facing desktop applications.
  • Contribute to platform layer bridging C++ inference engines.
  • Craft polished product experiences.
  • Build SDKs and bindings for developers.
  • Own React app development (Expo/Electron).
  • Design clean, modular React app architecture.
  • Build UI using modern React stack (TypeScript, RN Navigation, state management).
  • Implement local-first and local-only applications.
  • Integrate mobile apps with distributed systems.
  • Integrate mobile apps with local inference.
  • Integrate mobile apps with P2P layers.
  • Build native iOS/Android modules as needed.
  • Integrate various SDKs (payments, crypto, AI models).
  • Write unit tests.
  • Write E2E tests (Maestro/Appium/Playwright).

Work Experience

5 years

Education

Bachelor's degreeORMaster's degree

Languages

EnglishBusiness Fluent

Tools & Technologies

Node.jsJavaScriptReactSQLiteDockerKubernetesHyperswarmlibp2pWebRTCOpenAIWebAssembly
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