AI/ML Engineer

Frontier Technology Inc.

$190K — $220K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Must be a U.S. citizen and eligible to obtain a security clearance.
  • 6-10+ years of experience in developing AI/ML solutions in production.
  • At least 3 years in DoD/DoW environments focused on AI assurance and deployment.
  • Strong Python skills with hands-on experience in AI/ML development.
  • Experience with ML frameworks like PyTorch, TensorFlow, scikit-learn, and Hugging Face.
  • Proven ability to build MLOps pipelines using tools like MLflow or Kubeflow.
  • Knowledge of vector databases and retrieval architectures.

Responsibilities

  • Design, develop, and deploy AI/ML models that align with mission requirements.
  • Build, train, and optimize models using frameworks such as PyTorch and TensorFlow.
  • Develop and implement operational MLOps pipelines for machine learning processes.
  • Optimize vector databases and implement advanced retrieval architectures.
  • Write and maintain clean Python code for various machine learning tasks.
  • Experiment with fine-tuning approaches for large language models and other models.
  • Collaborate with cross-functional teams to ensure models meet operational standards.

Benefits

  • Work on impactful projects in defense and national security.
  • Opportunities for remote work flexibility.
  • Engagement in cutting-edge AI/ML technology.
  • Collaboration with top professionals in the field.
  • Involvement in mission-critical applications and systems.
Full Job Description
Overview

FTI Defense is seeking a hands-on AI/ML Engineer to design, build, and deploy advanced machine learning solutions supporting defense and national security missions. This role focuses on execution in oversight, ideal for an engineer who thrives in the code, enjoys building end-to-end pipelines, and takes pride in seeing their work directly impact operational systems.

Responsibilities

  • Design, develop, and deploy AI/ML models and pipelines that meet mission and performance objectives.
  • Build, train, and fine-tune models using frameworks such as PyTorch, TensorFlow, scikit-learn, Hugging Face, and LangChain.
  • Develop and operationalize MLOps pipelines (MLflow, Kubeflow, DVC, or custom training/inference orchestration).
  • Implement and optimize vector databases (Milvus, Pinecone, Chroma, FAISS) and retrieval architectures (RAG, graph, hybrid).
  • Write clean, efficient Python code for data ingestion, feature engineering, embeddings, and inference services.
  • Experiment with fine-tuning and optimization of LLMs and task-specific models (LoRA, QLoRA, PEFT).
  • Contribute to agent-based applications using frameworks like LangGraph, AutoGen, CrewAI, or DSPy.
  • Integrate AI services into real-world systems via APIs, event-driven workflows, or UI copilots.
  • Collaborate with data engineers, software developers, and mission analysts to ensure AI models are production-ready and aligned with customer needs.
  • Participate in peer reviews, contribute to shared repositories, and document models and experiments for reproducibility.


Education/Qualifications

Minimum Requirements:
  • Must be a U.S. citizen and be willing to obtain and maintain a security clearance, as needed.
  • 6-10+ years of professional experience developing and deploying AI/ML solutions in production environments.
  • Minimum of 3 years' professional experience within the Department of Defense/Department of War (DoD/DoW) AI assurance, security, and deployment environments.
  • Strong Python development skills with hands-on experience building AI/ML solutions.
  • Direct experience with ML frameworks such as PyTorch, TensorFlow, scikit-learn, Hugging Face, or LangChain.
  • Proven ability to build and deploy MLOps pipelines using MLflow, Kubeflow, DVC, or equivalent.
  • Working knowledge of vector databases (Milvus, Pinecone, Chroma, FAISS) and retrieval-based architectures (RAG, hybrid, graph).
  • Professional experience fine-tuning and evaluating LLMs or smaller task-specific models using LoRA, QLoRA, or PEFT.
  • Professional experience integrating AI capabilities into production systems or mission applications.

Preferred Qualifications:
  • Familiarity with agentic frameworks (LangGraph, AutoGen, CrewAI, DSPy) and multi-agent reasoning.
  • Understanding of prompt engineering, retrieval quality, and grounding methods.
  • Exposure to GPU-based or edge inference environments.
  • Bachelor's or Master's degree in Computer Science, Engineering, Data Science, or a related technical field.
  • Active Secret clearance preferred; ability to obtain one is required.


For this role, the compensation range for candidates is $190k-$220k . *Note: Starting pay will be based on a number of factors and commensurate with qualifications & experience. FTI has a location-based compensation structure; there may be a different range for candidates in other locations.

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