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Chief JavaScript Full-Stack Engineer

Remote in Argentina, & 2 others
JavaScript (Frontend)& 12 others
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We are seeking a Chief JavaScript Full-Stack Engineer to join our global AI Engineering team and shape the future of secure, enterprise-grade AI Agents at scale.

In this role, you will define the overarching technical vision and strategy for intelligent, user-facing agentic interfaces, frontend platforms, and streaming UX ecosystems that deliver GenAI capabilities to employees and customers worldwide. You will operate as a key technical authority, influencing engineering culture, standards, and long-term direction across multiple geographies.

Responsibilities
  • Establish the long-term technical vision and strategic roadmap for frontend architectures, component ecosystems, and real-time streaming platforms powering AI agents across web and mobile
  • Drive the design of high-performance, enterprise-scale frontend platforms engineered for ultra-low latency, SSE/WebSocket streaming, and sophisticated AI interaction paradigms
  • Build and mentor a community of lead and principal engineers, fostering technical excellence across global cross-geo teams and ensuring alignment on shared component libraries and AI design standards
  • Oversee the design, evolution, and governance of frontend interfaces and SDKs that bring AI agent capabilities to life for employees and customers
  • Define the reference architecture for Agentic Experiences (AX) on web and mobile, setting the standard for real-time response streaming and low-latency interactions
  • Institutionalize frontend observability, accessibility (WCAG/a11y), and operational excellence as organization-wide practices across all user-facing AI services
  • Direct the creation of reusable full-stack integration frameworks, component hooks, and platform capabilities that empower enterprise teams to embed GenAI tools at scale
  • Collaborate with executive stakeholders, product leadership, UX leadership, and backend architects to pioneer novel interaction patterns for AI copilots and virtual agents
  • Provide executive-level technical leadership, governance, and strategic guidance to global delivery organizations across multiple regions
Requirements
  • 7+ years of experience in JavaScript, React, TypeScript, and modern frontend state management libraries
  • 2+ years of relevant leadership experience, including guiding senior/lead engineers and driving cross-organizational technical strategy
  • Extensive software development background across web applications, client-side SDKs, APIs, and microservices at enterprise scale
  • Proven track record of shaping GenAI user experiences, conversational UX, and real-time response streaming interfaces (SSE/WebSockets)
  • Deep expertise in architecting chat assistants and prompt UI patterns
  • Strong proficiency in Python backend development and integrating cloud-native REST APIs on AWS/Docker
  • Demonstrated success in defining and evolving enterprise UI component libraries, design systems, and developer SDKs adopted across multiple business units
  • Advanced English proficiency (C1) with exceptional written and verbal communication skills
Nice to have
  • Familiarity with client-side or Node.js orchestration frameworks (LangChain for JavaScript, LlamaIndex, Model Context Protocol)
  • Understanding of RAG retrieval, vector databases, and citation rendering
  • Knowledge of React Native or web-to-mobile wrapper experience for AI workflows
  • Expertise in WCAG 2.1 AA compliance, a11y standards, and accessible UI component architecture
  • Competency in GraphQL and AI evaluation tooling (LangSmith, Langfuse, or user feedback loop UI components)