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Applied AI Engineer

Arlington, VA💼 Full-time🗓 2025-09-04 → 2026-09-26

Core

Build and ship language-model-powered systems to strengthen mission-critical cyber capabilities for U.S. national security.

Role type

Applied AI Engineer (LLM Systems)

Builds

Production LLM inference and retrieval systems for cyber operations

Domain

National Security / Cyber Operations / AI

Deliverable

production ML models

Required skills

Python, deep learning (PyTorch/TensorFlow/JAX), LLM post-training (SFT/RLHF/DPO), dataset curation, vector databases, evaluation metrics, orchestration frameworks (LangChain/LangGraph)

Preferred skills

distributed training, model quantization, LLMOps practices

Technologies

PyTorch, TensorFlow, JAX, vLLM, TensorRT, ONNX, pgvector, ChromaDB, Pinecone, Milvus, Weaviate, Pydantic-AI, LangChain, LangGraph, CrewAI, Docker, Kubernetes, AWS, GCP, Azure

Responsibilities

Create and maintain training/evaluation datasets; Fine-tune language models; Implement post-training and alignment approaches; Build RAG systems; Develop model serving infrastructure; Design evaluation frameworks; Integrate AI capabilities into workflows; Produce technical documentation

Seniority

Mid-Senior, hands-on IC

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