What are the responsibilities and job description for the Tech Lead / Lead Architect – RAG & Agentic AI position at Hallmark Global Solutions Ltd?
Job Title: Tech Lead / Lead Architect – RAG & Agentic AI
Location: Columbus, OH/ Wilmington, DE – 3 days onsite role
Long Term Project
Role Summary
:
Lead architecture, design, and delivery of Agentic AI and RAG-based solutions, partnering with customers and internal teams to build scalable, secure, and high-impact AI system
s.
Must-Ha
- ve:Strong experience in RAG pipelines, embeddings, vector DBs, LLM orchestration, and prompting techniqu
- es.Hands-on expertise in AWS (Lambda, API Gateway, Bedrock, S3, OpenSearch, IAM, VPC, Secrets Manage
- r).Ability to design end-to-end AI architecture and build PoCs before committing solutions to custome
- rs.Deep understanding of AI guardrails (toxicity, hallucination control), data privacy, and cloud security patter
- ns.Proven ability to lead from the front, mentor teams, and own delivery under tight timelines and high visibili
- ty.Strong customer communication skills – ability to explain architecture, trade-offs, and risks clear
- ly.Experience handling model evaluation, observability, performance tuning, and cost optimization in production AI syste
- ms.Expertise in API design, microservices integration, and event-driven architectures for AI syste
ms.
Good-to-H
- ave:Experience with Agentic AI frameworks (LangGraph, CrewAI, AutoGen, Semantic Kernel, et
- c.).Exposure to marketing domain use cases (campaign optimization, personalization, analytics, insigh
- ts).Familiarity with multi-agent orchestration, tool usage (MCP), and human-in-loop workfl