AI Prompt Engineer

CACI • Indianapolis, IN

3d • $50,500 - $101,000 • Onsite

About The Position

CACI is seeking a forward-thinking AI Prompt Engineer to join a team delivering innovative AI solutions in support of U.S. Customs and Border Protection (CBP). The role applies generative AI technologies to help modernize how frontline personnel access information, make decisions, and execute their work. Using AI-powered tools and large language models, the engineer develops solutions intended to improve efficiency, enhance situational awareness, and accelerate access to mission-critical information in support of border protection, lawful trade and travel, and national security.

Requirements

• U.S. citizenship and ability to pass a CBP background investigation, including checks for felony convictions, illegal drug use, and misconduct such as theft or fraud.
• Availability to work onsite in Ashburn, Virginia and/or Washington, D.C.
• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related field; equivalent experience may be considered in lieu of a degree.
• At least 1 year of software development experience, internships, or relevant academic project work.
• At least 1 year of hands-on experience working with large language models such as OpenAI GPT series, Llama, or Gemini, or other generative AI models.
• Experience with at least one programming language, such as Python or JavaScript/TypeScript.
• Familiarity with prompt engineering techniques, including few-shot prompting, chain-of-thought, structured outputs, and function calling.

Nice To Haves

• Problem-solving skills and a data-driven approach to experimentation and optimization.
• Written and verbal communication skills, including the ability to clearly explain complex technical concepts.
• Ability to work independently and collaboratively in a fast-paced, evolving environment.
• Exposure to RAG concepts, including embeddings and vector databases.
• Understanding of AI safety considerations, such as prompt injection, bias, and data privacy.
• Exposure to Agile/Scrum development environments.

Responsibilities

• Develop, refine, and iterate on prompts for generative AI models to elicit desired behaviors, responses, and creative outputs.
• Test prompt variations, analyze results, and drive continuous improvement.
• Collaborate with multiple groups to integrate prompts and streamline manual processes.
• Stay current on advancements in large language models, generative AI, and prompt engineering techniques.
• Provide input and collaborate on model fine-tuning and Retrieval Augmented Generation (RAG) strategies to improve accuracy.
• Debug unexpected model behaviors and identify root causes related to prompt structure, model limitations, or data context.

Benefits

• Flexible time off benefit.
• Learning resources and learning and development opportunities.
• Healthcare benefits.
• Wellness benefits.
• Financial benefits.
• Retirement benefits.
• Family support benefits.
• Continuing education benefits.
• Time off benefits.
• Competitive compensation and benefits options designed to support and protect employees and their families.

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level