Full-Stack Software Engineer

LeanTeams; Argentina; Remote; ARS 138,361,000 - 199,855,000; Full time

Job summary

LeanTeams is seeking a Full-Stack Software Engineer to join an AI-powered tour operator platform. You will build scalable features across frontend and backend, design AI agents and workflows, and integrate APIs with reliable data flows.

The role emphasizes UX-first design, technical ownership, and rapid delivery in a dynamic startup setting. You will collaborate with international teams, align with US Eastern working hours, and contribute to product architecture and AI-native capabilities,

Qualifications

• Strong hands-on experience in full-stack software development across frontend, backend, databases and deployment.
• Experience designing or building AI agents, agentic workflows, or AI-powered product architectures.
• Understanding of modern software architecture, APIs, and system integrations.
• Solid UX/UI judgment and ability to identify usability issues independently.
• Experience shipping production-ready applications.
• Excellent problem-solving, technical autonomy and product-minded thinking.

Responsibilities

• Build, develop, and optimize end-to-end platform features across frontend and backend systems.
• Design and implement AI agents, agentic workflows, and intelligent automation.
• Develop scalable architectures, API integrations, and reliable data flows.
• Identify UX/UI issues and translate complex workflows into intuitive interfaces.
• Take ownership of technical decisions, product improvements, and feature delivery.
• Collaborate in a fast-moving startup environment balancing engineering quality, usability, and business impact.

Skills

Full-stack development

AI agents & workflows

APIs & integrations

UX/UI judgment

Production-ready apps

English communication

Job description

Full-Stack Software Engineer | AI-Powered Tour Operator Platform

About the Opportunity

A US-based startup is developing an AI-powered platform designed to transform how tour operators and Destination Management Companies (DMCs) plan, organize, and manage travel experiences.

The platform leverages agentic AI to automate complex workflows, from itinerary creation to coordination with hotels, transportation providers, restaurants, and attractions.

This opportunity combines full-stack software engineering, AI architecture, and product development, with a strong emphasis on building intuitive, scalable user experiences.

Key Responsibilities

• Build, develop, and optimize end-to-end platform features across frontend and backend systems.
• Design and implement AI agents, agentic workflows, and intelligent automation.
• Develop scalable architectures, API integrations, and reliable data flows.
• Identify UX/UI issues and translate complex workflows into intuitive, user-friendly interfaces.
• Take ownership of technical decisions, product improvements, and feature delivery.
• Collaborate in a fast-moving startup environment, balancing engineering quality, usability, and business impact.

Requirements

• Strong hands-on experience in full-stack software development, including frontend, backend, databases, and deployment.
• Practical experience designing or building AI agents, agentic workflows, or AI-powered product architectures.
• Strong understanding of modern software architecture, APIs, and system integrations.
• Solid UX/UI judgment and the ability to independently identify and improve usability issues.
• Experience developing and shipping production-ready applications.
• Excellent problem-solving skills, technical autonomy, and product-oriented thinking.
• Strong spoken English for technical discussions and international collaboration.
• Full-time availability and the ability to overlap with US Eastern working hours.

Additional Experience Valued

• AI-native products and LLM-based applications.
• Agent orchestration, tool calling, and workflow automation.
• Early-stage startup environments.
• Experience building products where engineering and UX/UI decisions are closely connected.