AI Prompt Engineer

Job Title: AI Prompt Engineer

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: Secret

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Continental US

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The Opportunity:
CACI is looking for an AI Prompt Engineer to join our EITaaS contract.

We are seeking a highly creative, technically proficient, and detail-oriented Prompt Engineer to join our growing AI team. This pivotal role will be responsible for designing, testing, and optimizing prompts for Large Language Models (LLMs) to achieve high-quality, and reliable outputs for various use cases. You will be instrumental in translating complex requirements into effective AI interactions.

This role is ideal for someone who thrives on experimentation, understands how LLMs interpret language, and is passionate about unlocking the full potential of generative AI.

Responsibilities:

• Prompt Design & Optimization: Develop, refine, and iterate on prompts for various generative AI models (LLMs) to elicit desired behaviors, responses, and creative outputs.
• Iterative Testing & Analysis: Conduct testing to compare prompt variations, analyze results drive continuous improvement.
• Collaboration: Work closely with multiple groups to integrate prompts to streamline manual processes.
• Research & Development: Stay abreast of the latest advancements in LLMs, generative AI, and prompt engineering techniques.
• Fine-tuning & RAG Support: Provide input and collaborate on strategies for model fine-tuning and Retrieval Augmented Generation (RAG) to further improve accuracy.
• Problem Solving: Debug unexpected model behaviors, identifying root causes within prompt structure, model limitations, or data context.

Qualifications:

Required: 

• US Citizenship.
• A DoD secret clearance or ability to obtain.
• Bachelor’s degree in computer science, Software Engineering, Information Technology, or related field (equivalent experience may be considered in lieu of degree).
• 6+ months of professional software development experience, internships, or relevant academic project work.
• 1+ year of hands-on experience working with Large Language Models (e.g., OpenAI GPT series, Llama, Gemini) or other generative AI models.
• Experience with at least one programming language (Python, JavaScript/TypeScript)
• Familiarity with prompt engineering techniques (few-shot, chain-of-thought, structured outputs, function calling)
• Problem-solving skills, with a data-driven approach to experimentation and optimization.
• Witten and verbal communication skills, with an ability to articulate complex technical concepts clearly.
• Ability to work independently and collaboratively in a fast-paced, evolving environment.

Desired: 

• Familiarity with use cases and limitations of various AI implementation types: RAG, agentic, generative, etc.
• Understanding of AI safety considerations (e.g., prompt injection, bias, data privacy)
• Exposure to Agile/Scrum development environments
• Experience with ServiceNow 

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What You Can Expect:

 A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Pay Range:

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

Since this position can be worked in more than one location, the range shown is the national average for the position.

The proposed salary range for this position is:

$58,000-$115,900

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.