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Halian | Managed Services, Recruitment Agency & Contract Staffing · 4 days ago

Senior AI / Agentic AI & LLM Engineer (Lead) – Python, vLLM / TGI

United States

Full-time

Remote

Senior Level, Lead/Staff

$210K/yr - $260K/yr

Halian is partnering with a well-funded, AI-driven technology company operating in highly regulated healthcare and insurance environments across the United States. They are seeking a highly skilled Senior AI / LLM Lead Engineer to take ownership of end-to-end AI initiatives, from architecture and design through to hands-on implementation and production deployment.

EnterpriseInformation TechnologyProfessional Services

No H1B

Hiring Manager

Marlon Bannister

Responsibilities

Lead end-to-end AI and LLM initiatives, from problem definition and system architecture to production deployment

Remain hands-on in building, testing, and optimising LLM pipelines, agentic systems, and ML workflows

Design and implement agentic and multi-agent systems for real-world applications

Develop tailored LLM pipelines using frameworks such as LangChain, LangGraph, and related ecosystems

Deploy and optimise open-source LLMs using vLLM, TGI, and Python-based inference stacks

Fine-tune, evaluate, and integrate open-source models including Qwen, Llama, Mistral, and similar families

Build and maintain OCR and document intelligence pipelines, including layout-aware processing and post-OCR normalisation

Design and optimise document chunking strategies for embeddings, retrieval, and long-context reasoning

Build and operate large-scale embeddings and vector search pipelines

Apply unsupervised learning techniques on tabular data for clustering, similarity analysis, and anomaly detection

Provide technical leadership, mentorship, and best-practice guidance to engineers

Collaborate with cross-functional teams on architecture, performance goals, and delivery standards

Qualification

PythonAgentic AILLM pipelinesVLLMLangChainLangGraphUnsupervised learningTechnical leadershipCross-functional collaboration

Required

Strong proficiency in Python

Deep experience with Agentic AI, autonomous agents, and orchestration frameworks

Hands-on experience building and deploying LLM pipelines and multi-agent systems

Experience with vLLM, TGI, and LLM serving infrastructure

Extensive experience with open-source LLM ecosystems

Experience with LangChain, LangGraph, or similar frameworks

Strong understanding of chunking strategies, embeddings, retrieval quality, and hallucination control

Experience building embeddings pipelines, vector indexing, and retrieval workflows

Practical experience applying unsupervised learning techniques (e.g. clustering, similarity analysis, anomaly detection)

Must be based in the United States

Must have valid US work authorisation (no sponsorship available)

Company

Halian | Managed Services, Recruitment Agency & Contract Staffing

Halian, with nearly 30 years of experience across the Middle East, Europe, and the US, is dedicated to shaping the future of Workforce Management and Managed Services.

Founded in 1996