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Senior Full Stack Engineer at Agent. Remote Location: Mexico. Title:. Sr Full Stack Engineer. Remote:. Anywhere in LATAM (Working PST Hours). Salary:. $8,000+ USD/month. Type:. Full-time. About the Role. Our client is an AI-native agency transforming the Amazon seller experience. They are developing a cutting-edge in-house automation platform powered by Large Language Models (LLMs), Retrieval-Augmented Generation (RAG) pipelines, and agentic AI to drive profitable, scalable growth for Amazon sellers.. As a . Senior Full Stack Engineer. , you'll be part of a small, high-impact team at an early stage, helping build AI-enabled tools that disrupt traditional e-commerce agency models. You’ll play a key role in building, scaling, and iterating on platform features that blend automation, AI, and intuitive UI/UX.. What You’ll Do. Build AI-Enabled Products:. Develop automation tools and services using Python and modern JavaScript frameworks.. LLM Integration:. Design and maintain LLM-based features and RAG pipelines to support intelligent automation.. Develop Agentic Tools:. Build scalable agent-driven systems using AI frameworks and web automation tools like Selenium or Playwright.. Rapid Prototyping:. Quickly ideate, build, and iterate on features in response to evolving product needs.. Scale Thoughtfully:. Build with scalability in mind—fast MVPs that evolve into robust, maintainable systems.. Who You Are. Experienced Full Stack Engineer:. 5+ years of experience (4–5 years preferred) across backend and frontend development.. Python & AI Savvy:. Strong Python skills and direct experience with LLMs, AI frameworks, and RAG optimization.. Automation Enthusiast:. Proficiency with tools like LangChain, CrewAI, Selenium, or Playwright.. Frontend Capable:. Familiar with React, Next.js, or similar frameworks for building modern web interfaces.. Startup-Minded:. Comfortable with ambiguity, fast-paced environments, and a strong bias toward shipping and learning.. Preferred Qualifications. Experience at a high-growth or early-stage startup.. Familiarity with e-commerce, marketplaces, or Amazon’s seller ecosystem.. Exposure to cloud platforms (AWS, GCP) and DevOps practices.. Portfolio or open-source projects involving AI, RAG, or automation.. Why Join?. Join a passionate, highly skilled founding team.. Help shape a next-generation AI automation platform.. Enjoy flexible, fully remote work.. Competitive compensation and a clear path to impact.