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Lead AI Engineer – AI Foundations, LLM Core & Agentic AI

Apetan Consulting LLC

Remote · US Full-time Lead 5d ago

About the role

Role Summary

We are seeking a Lead AI Engineer to drive the design and development of advanced AI systems, with a focus on foundational models, Large Language Models (LLMs), and agentic AI frameworks. This role will lead the architecture and deployment of scalable, production-grade AI solutions that power intelligent automation and next-generation applications.

Key Responsibilities

  • Lead the design and development of AI/ML systems with a focus on LLMs and agent-based architectures.
  • Build and optimize pipelines for training, fine-tuning, and deploying large language models.
  • Architect AI platforms supporting retrieval-augmented generation (RAG), embeddings, and vector databases.
  • Develop and manage agentic workflows, orchestration layers, and multi-agent systems.
  • Integrate AI capabilities into enterprise applications via APIs and microservices.
  • Ensure scalability, performance, and reliability of AI systems in production.
  • Collaborate with data scientists, software engineers, and product teams to deliver AI-driven solutions.
  • Establish best practices for prompt engineering, model evaluation, and responsible AI.
  • Implement monitoring, logging, and continuous improvement for deployed AI systems.
  • Stay up to date with advancements in generative AI, LLM frameworks, and tooling.

Required Skills & Qualifications

  • Bachelor’s or Master’s degree in Computer Science, AI, Machine Learning, or related field.
  • 7–10+ years of experience in software engineering/AI engineering, with strong hands-on expertise in ML systems.
  • Deep understanding of:
    • Large Language Models (LLMs) and transformer architectures
    • NLP, embeddings, and semantic search
    • Retrieval-Augmented Generation (RAG)
  • Strong programming skills in Python (preferred) and experience with ML frameworks (PyTorch, TensorFlow).
  • Experience with LLM ecosystems and tools (e.g., LangChain, LlamaIndex, vector DBs like Pinecone, FAISS).
  • Knowledge of API design, microservices, and distributed systems.
  • Experience with cloud platforms (Azure, AWS, or GCP) and MLOps practices.

Preferred Qualifications

  • Experience working with open-source and proprietary LLMs (e.g., GPT, LLaMA, etc.).
  • Exposure to agentic AI frameworks and autonomous systems.
  • Knowledge of fine-tuning techniques (LoRA, RLHF, etc.).
  • Experience with Kubernetes, Docker, and scalable deployment architectures.
  • Familiarity with AI safety, governance, and ethical AI principles.

Key Competencies

  • Technical leadership and architecture design
  • Innovation and problem-solving mindset
  • Strong collaboration and communication skills
  • Ability to translate business problems into AI solutions
  • Mentorship and team development

Nice to Have

  • Experience building AI platforms or internal AI tooling
  • Contributions to open-source AI projects
  • Background in data engineering or big data technologies

Skills

AzureDockerFAISSGCPKubernetesLangChainLlamaIndexLoRAML frameworksMLOpsPineconePythonPyTorchRLHFTensorFlow

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