We are seeking a Lead JavaScript Full-Stack Engineer to join our global AI Engineering team and build the future of secure, enterprise-grade AI Agents.
In this role, you will lead the architecture and design of intelligent, user-facing agentic interfaces, frontend libraries, and streaming UX platforms that bring GenAI capabilities to employees and customers worldwide.
Responsibilities
- Set technical direction for frontend architectures, component systems, and real-time streaming interfaces powering AI agents across web and mobile
- Build high-performance frontend interfaces engineered for low latency, SSE/WebSocket streaming, and complex AI interaction patterns
- Mentor senior full-stack engineers and partner with integral cross-geo teams to ensure shared component libraries and cohesive AI design standards
- Design, build, and refine frontend interfaces and SDKs that bring AI agent capabilities to life for employees and customers
- Architect high-performance Agentic Experiences (AX) for web and mobile, engineered for real-time response streaming and low latency




- Champion frontend observability, accessibility (WCAG/a11y), and operational excellence across user-facing AI services
- Develop reusable full-stack integration frameworks and component hooks that enable enterprise teams to easily embed GenAI tools
- Partner with product managers, UX designers, and backend engineers to define novel interaction patterns for AI copilots and virtual agents
- Provide technical leadership and hands-on guidance to global delivery teams across multiple regions

Requirements
- 5+ years of engineering expertise in JavaScript, React, TypeScript, and modern frontend state management libraries
- At least 1 year of relevant leadership experience
- Strong software development experience across web applications, client-side SDKs, APIs, and microservices
- Background in building GenAI user experiences, conversational UX, and real-time response streaming interfaces (SSE/WebSockets)
- Skills

📌 Lead JavaScript Full-Stack Engineer (Argentina)
🏢 EPAM Systems
📍 Argentina