[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 aSenior 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, bolthires-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 bolthires 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