[Remote] Senior AI / LLM Full-Stack Engineer (EST / NYC)

Note: The job is a remote job and is open to candidates in USA. NextGen Coding Company is hiring a Senior AI / LLM Full-Stack Engineer to design, build, and deploy production-grade AI systems for enterprise and regulated clients. The role focuses on embedding large language models into existing applications, building robust RAG pipelines, and delivering reliable, cost-efficient AI-powered features at scale. Responsibilities • Embed large language models into existing enterprise applications and workflows • Design, build, and maintain Retrieval-Augmented Generation (RAG) pipelines • Integrate AI services with internal APIs, databases, and data platforms • Develop backend services and supporting infrastructure for AI-driven features • Implement light frontend components as needed to support AI functionality • Optimize prompt quality, system latency, and inference cost across deployments • Collaborate closely with client engineers, architects, and product owners • Support production monitoring, debugging, and iterative improvement of AI systems Skills • 5+ years of professional software engineering experience • 2–3+ years of hands-on AI / LLM work in production environments • Strong proficiency in Python • Experience working with LLMs such as GPT-4, Claude, or equivalent models • Practical experience building RAG systems using LangChain or similar frameworks • Experience with vector databases such as Pinecone, FAISS, or Weaviate • Backend development experience with FastAPI, Flask, and/or Node.js • Frontend familiarity with React or equivalent frameworks (not design-heavy) • Cloud experience with AWS or Azure • Full availability during Eastern Time Zone business hours • Experience supporting enterprise or regulated clients strongly preferred Company Overview • NextGen Coding Company, we specialize in delivering cutting-edge software solutions powered by Artificial Intelligence (AI), Machine Learning (ML), Blockchain, Computer Vision, and Automation. It was founded in 2023, and is headquartered in New York City, NY, US, with a workforce of 11-50 employees. Its website is Apply tot his job