The Opportunity
Make a difference and join an enthusiastic team looking to make a difference in the lives of today’s military! CACI is looking for an experienced senior-level developer with strong interpersonal and communication skills as well as a record of accomplishment in successful project execution. The Developer must have independent drive if working remote. Working for DHA and Naval Information Warfare Center Atlantic for a Navy Medicine Online Project. The project is within the Defense Health Readiness Engineering portfolio.
**Mandatory Skills: Claude Code, Claude CoWork, Cursor, and/or ROO
Responsibilities
Context Architecture & Design
• Design and maintain context pipelines that retrieve, rank, compress, and assemble information for LLM inputs
• Define and enforce context schemas, prompt templates, and structured data contracts across AI features
• Develop strategies for dynamic context window management — balancing relevance, recency, and token budget
• Architect retrieval-augmented generation (RAG) systems, including chunking strategies, embedding selection, and reranking layers
Prompt Engineering & Optimization
• Craft, iterate on, and systematically test system prompts and few-shot examples that reliably elicit desired model behaviors
• Build evaluation frameworks to measure prompt quality, instruction-following accuracy, and output consistency
• Identify and mitigate failure modes such as hallucination, instruction drift, context confusion, and context stuffing
• Maintain a prompt library and versioning system to support reproducibility and regression testing
Tooling & Infrastructure
• Build internal tooling for context inspection, token counting, and prompt debugging
• Integrate with vector databases (e.g., Pinecone, Weaviate, pgvector) and semantic search infrastructure
• Implement memory systems, conversation state management, and session persistence for multi-turn AI applications
• Collaborate with DevOps/MLOps to deploy and monitor context pipelines in production environments
Research & Continuous Improvement
• Stay current with LLM research: context window advances, long-context models, sparse attention, and retrieval techniques
• Prototype and evaluate new approaches to context construction, summarization, and compression
• Document findings, failure analyses, and architectural decisions for the broader team
• Mentor junior engineers and contribute to internal knowledge sharing on prompt engineering
Qualifications
Required
**Mandatory Skills: Claude Code, Claude CoWork, Cursor, and/or ROO
• Secret Clearance or the ability to obtain a secret clearance
• Develop and maintain software requirements as it relates to user requirements and existing software defects
• Knowledge of DevSecOps, agile development and the context engineering lifecycle
• Knowledge and experience with JavaScript
• Knowledge of JSON
• Knowledge of source code versioning
• System Test and Evaluation, planning execution and management.
Desired
• Demonstrated writing/editing skills
• Ability to work under pressure and multitask in a fast-paced environment
• Able to work with highly technical IT personnel, understand technical tasking, and explain technical activities to non-technical individuals
Excellent interpersonal and communication skills
Education and Experience:
Education: University degree (BA/BS) or 5+ years of experience.
Experience: 3+ years of professional software engineering experience, with 1+ years working directly with large language models in production. Demonstrable hands-on experience building or shipping LLM-powered applications or features. Experience with at least one major LLM API platform: OpenAI, Anthropic, Google Gemini, Cohere, or equivalent. Familiarity with prompt engineering techniques: chain-of-thought, few-shot prompting, structured output, tool/function calling.
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:
$82,100-$172,400CACI 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.