Principal GenAI Data Scientist
ZeniusMaclean, VA, United Statesjob_description.job_card.variable_days_ago
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job_description.job_card.job_descriptionHands-on ML to GenAI transition with demonstrated delivery of AI agents / agentic workflows. Deep experience with RAG (documents to vectors, retrieval, synthesis) and Graph-RAG. Strong Python (Jupyter) and modern ML stack (Transformers, LangChain / LlamaIndex or similar). Practical use of MCP and A2A communication patterns in real workflows. Cloud-native AI on AWS (SageMaker, Bedrock; MLFlow / Kubeflow on EKS). Vector databases / knowledge bases (AWS Knowledge Bases / Bedrock, Elastic, MongoDB Atlas, etc.). Proven prompt engineering, fine-tuning, evaluation frameworks, and guardrails / safety implementation. Built and deployed GenAI apps to production (latency, cost, observability, rollback, safety). Strong data engineering fundamentals : ingestion, chunking, enrichment, anonymization, and governance. 10+ years in AI / ML with 3+ years focused on applied GenAI / LLM solutions. Prior software engineering experience and ability to partner closely with full-stack teams. GitHub repository link required for consideration (please include recent GenAI / agent work). Publications or patents in AI / ML / LLM. Experience with enterprise AI governance and ethical deployment. CI / CD for MLOps and scalable inference APIs; observability and evaluation in production. Experience designing business use cases from problem framing through measurable outcomes. Multi-modal models (text / image / audio / video) and tool-use / function-calling. Knowledge graphs for Graph-RAG; retrieval policy and query planning. GenAI architectural patterns (routing, orchestration, distillation, hybrid search).
Principal GenAI Data Scientist
Duration : 3 months Start : ASAP Location : Onsite
Description
We are seeking a highly experienced Principal GenAI Data Scientist to lead the design and development of AI agents, agentic workflows, and production GenAI applications that solve real business problems. You'll be a hands-on technical leader who partners with full-stack engineers, designers, product managers, and data engineers to ship secure, reliable, and scalable GenAI solutions.
Responsibilities
- Architect & build AI agents, agentic workflows, and end-to-end GenAI apps for diverse enterprise use cases.
- Develop, fine-tune, and evaluate LLMs (e.g., Claude / Anthropic, Azure OpenAI, and OSS) and select the right model per use case (cost / latency / quality).
- Design & deploy RAG and Graph-RAG systems using vector stores and knowledge bases; implement semantic chunking, metadata enrichment, and privacy controls.
- Implement embeddings pipelines and integrate with vector stores (e.g., AWS Knowledge Bases / Bedrock, Elastic, MongoDB Atlas).
- Leverage MCP (Model Context Protocol) and A2A (agent-to-agent) patterns to compose multi-agent solutions.
- Build notebooks & services in Python / Jupyter; use SageMaker and MLFlow / Kubeflow on EKS for training, tracking, and deployment.
- Curate enterprise data via connectors; orchestrate multimodal ETL / ELT (PDF / audio / video) with Spark / PySpark.
- Integrate GenAI capabilities into enterprise platforms via APIs and standardized GenAI patterns.
- Establish evaluation & safety : define automatic evals, bias testing, guardrails, and deployment readiness criteria.
- Collaborate cross-functionally with UI / microservices teams to deliver polished, production solutions and measurable business value.
- Document & mentor : codify patterns, playbooks, and best practices for repeatable delivery.
Must-Have Qualifications
Required Experience
Preferred Qualifications
Nice to Have (Role-Aligned Extras)
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Principal Data Scientist • Maclean, VA, United States
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