Senior AI/ML Engineer: Agentic LLMs, RAG & Production ML

Orbien LLC; Maryland; On-site; USD 150,000 - 230,000; Full time

Job summary

Orbien LLC seeks an experienced Data Scientist/ML Engineer to architect multi-agent systems capable of planning, tool use, and coordinated task execution. You will design RAG pipelines, embeddings, hybrid retrieval, and context window strategies to optimize performance.

You will fine-tune and evaluate small, medium, and large language models for domain-specific reasoning and summarization, and develop prompt engineering frameworks, guardrails, and automated evaluation suites for agent

Qualifications

• 7+ years in Data Science/ML Engineering with deep experience in LLM-based systems.
• Proven experience building agentic architectures (planner, executor, tool-use, ReAct style).
• Strong background in RAG, embeddings, retrieval optimization, evaluation.

Responsibilities

• Architect and implement multi-agent systems with planning, tool use, and coordinated tasks.
• Design and optimize RAG pipelines including embeddings and retrieval strategies.
• Fine-tune and evaluate LLMs for domain-specific reasoning and summarization.

Skills

Data science

ML engineering

LLM systems

Prompt engineering

Agent architectures

Strategic leadership

Python

Communication

Problem solving

Research

Tools

PyTorch

HuggingFace

LangChain

LlamaIndex

Ray

Kubernetes

Vector databases

AWS SageMaker

BERT

RoBERTa

T5

Job description

Orbien LLC seeks an experienced Data Scientist/ML Engineer to architect multi-agent systems capable of planning, tool use, and coordinated task execution. You will design RAG pipelines, embeddings, hybrid retrieval, and context window strategies to optimize performance.

You will fine-tune and evaluate small, medium, and large language models for domain-specific reasoning and summarization, and develop prompt engineering frameworks, guardrails, and automated evaluation suites for agent