> Markdown version of [/jobs/ext/3553887-ai-engineer-sme-clearance-and-polygraph-required](https://www.wearedevelopers.com/jobs/ext/3553887-ai-engineer-sme-clearance-and-polygraph-required). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # AI Engineer - SME- CLEARANCE and POLYGRAPH REQUIRED - **Company:** Constellation Technologies, Inc. - **Location:** Fort Meade, MD, United States - **Salary:** $100,000.0 - $180,000.0 - **Contract:** Permanent contract - **Skills:** LangGraph Framework, JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Systems Engineering, Python (Programming Language), Software Tools, Software Engineering, Systems Integration, TypeScript, Data Processing, Haystack, LangChain, Retrieval-Augmented Generation, Delivery Pipeline, Large Language Models, Prompt Engineering, Llamaindex, Generative AI, Agentic-AI, Kubernetes, Information Technology, CrewAI, AutoGen, Semantic Kernel, Human in the Loop - **Published:** October 2, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9210733/ai-engineer-sme-clearance-and-polygraph-required ## About the Role solutions involving LLMs, agentic workflows, LangChain, LangGraph, Semantic Kernel, AutoGen, CrewAI, Haystack, LlamaIndex, or similar ecosystems. Python, JavaScript/TypeScript, or similar languages commonly used in AI application development. Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position. Required: * Must be a US Citizen * Must have TS/SCI clearance w/ active polygraph * Requires current CI poly within last seven (07) years. * Eighteen (18) years of experience with a Bachelors Degree; experiencing providing technical advisory support for the design, evaluation, and advancement of applications, tools, and workflows. * Degree in Systems Engineering, Computer Science, Engineering, Data Science, Mathematics, or related field. * Experience designing, building, integrating, or evaluating AI/ML-enabled applications or software tools. * Familiarity with modern AI application patterns, including LLM-based applications, RAG, prompt engineering, agentic systems, and AI-assisted workflows. * Working knowledge of one or more agentic or orchestration frameworks such as LangChain, LangGraph, Semantic Kernel, AutoGen, CrewAI, Haystack, LlamaIndex, or similar ecosystems. * Experience with software development fundamentals, APIs, data handling, and system integration. * Ability to assess technical tradeoffs and communicate them clearly to both engineers and government stakeholders. * Strong written and verbal communication skills. These Qualifications Would be Nice to Have: * Experience with Python, JavaScript/TypeScript, or similar languages commonly used in AI application development. * Familiarity with vector databases, embeddings, model APIs, evaluation frameworks, and agent testing harnesses. * Exposure to model hosting, inference pipelines, or cloud-based AI development environments. * Understanding of secure AI development practices, data protection, and operational constraints in government settings. * Experience supporting defense, cyber, intelligence, or mission application development. * Familiarity with human-in-the-loop workflows, AI assurance, and evaluation methodologies.