Yuno

AI Frontend Developer

Yuno
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1 month ago
Buenos Aires, Argentina or Bogotá, ColombiaMid Level

Responsibilities

  • Build and evolve user-facing AI products, including copilot and agent interfaces, conversational flows, streaming responses, and human-in-the-loop review screens.
  • Design and maintain a reusable design system and web components for Yuno applications and third parties.
  • Develop internal back-office tools that improve operational efficiency.
  • Integrate LLM APIs and backend services into frontend applications while handling streaming, latency, and error states.
  • Write reusable, testable, and efficient code, including unit and end-to-end tests within the CI/CD workflow.
  • Collaborate with AI, data, backend, and product teams to translate complex AI capabilities into simple, actionable UI components.
  • Use AI-assisted development, code generation, and automated testing in daily engineering work.
  • Ensure shipped products meet performance, accessibility, and security standards.

Requirements

  • 2+ years of professional experience building production web applications with React and TypeScript.
  • Strong knowledge of JavaScript, HTML, CSS, Node.js, Git, NPM or Yarn, Next.js, and Storybook or similar tools.
  • Experience integrating REST, streaming, and LLM APIs into frontend applications.
  • Experience with unit testing, end-to-end testing, and CI/CD.
  • Hands-on experience with AI-assisted development tools such as Claude Code, Cursor, or GitHub Copilot.
  • Understanding of prompt engineering and evaluating model outputs in the UI.
  • Autonomy in task execution and comfort working in a fast-paced agile environment.
  • Professional proficiency in English.
  • Preferred: experience building production interfaces for AI agents or copilot features.
  • Preferred: experience with Nest.js, Emotion, AWS services including S3 and Amplify, and Docker.
  • Preferred: payments industry experience or Payment Service Provider integrations.
  • Preferred: knowledge of backend languages and willingness to work across the stack.

Benefits

  • Remote work from anywhere in Latin America.
  • One-time home office bonus.
  • Work equipment provided.
  • Stock options.
  • Health plan wherever you are.
  • Flexible days off.
  • Full-time individual contributor position.

Tech Stack

Yuno

About Yuno

1,001-5,000 employees

Yuno builds a global payment orchestration platform that lets enterprise merchants and financial institutions run pay-ins, payouts, fraud prevention, KYC/KYB, and tokenization through a single API. The system routes transactions across 1,000+ payment methods and 460+ integrations in 190+ countries to improve acceptance and reduce costs. Founded in 2022 and headquartered in New York, it serves brands such as Arcos Dorados (McDonald’s), Rappi, inDrive, GoFundMe, and NetEase Games.

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