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AI / Machine LearningOnsite

Staff AI/ML Engineer (LLMs)

CACI - Company

King of Prussia, Montgomery County, ๐Ÿ‡บ๐Ÿ‡ธ United StatesFull-time - Principal (10+ years)0 applicantsCloses Jun 21, 2026

Salary

USD 108,400 - 227,500 / year

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Job description

Job details

  • Location: King of Prussia, Montgomery County
  • Work mode: Onsite
  • Employment type: Full-time (Not an internship)
  • Salary: USD 108,400 - 227,500 per year

Role overview

CACI is seeking a Staff AI/ML Engineer specializing in Large Language Models to lead the development of Agentic AI capabilities and LLM-based solutions for mission management applications in King of Prussia, Montgomery County. This full-time, onsite position requires an active TS/SCI clearance and offers a competitive salary range of 108,400to108,400 to 227,500 USD. The role involves up to 10% local travel and provides the opportunity to work on cutting-edge AI technologies in a mission-critical environment.

Job details

This is a full-time, onsite position located in King of Prussia, Montgomery County. The role requires an active TS/SCI security clearance to start. Salary ranges from 108,400to108,400 to 227,500 USD annually, commensurate with experience. Up to 10% local travel may be required. The Staff AI/ML Engineer will lead technical initiatives in LLM development and mentor a multidisciplinary team of developers and researchers working on advanced AI solutions for government and defense applications.

Responsibilities

  • Lead development of Agentic AI capabilities and LLM-based solutions
  • Architect and implement large language model systems for mission applications
  • Mentor multidisciplinary team of developers and researchers
  • Design scalable AI/ML pipelines for production deployment
  • Collaborate with stakeholders on mission-critical AI requirements

Requirements

  • Active TS/SCI security clearance required
  • 10+ years experience in AI/ML engineering with focus on LLMs
  • Expert knowledge of transformer architectures and NLP techniques
  • Strong programming skills in Python and ML frameworks
  • Proven leadership and team mentorship experience
  • Bachelor's degree in Computer Science, AI, or related field

Benefits

  • Competitive salary up to $227,500
  • Work on cutting-edge AI technologies
  • Professional development opportunities
  • Comprehensive benefits package

Keywords

LLMAIMachine LearningAgentic AIPythonNLPDeep LearningTransformersTS/SCI