Senior AI Solutions Architect: LLM, RAG & Cloud APIs

Pb Consulting; Des Plaines (IL); On-site; USD 180,000 - 240,000; Full time

Job summary

Pb Consulting in the United States seeks a Senior AI Solutions Architect to lead the architecture and development of scalable Generative AI, LLM, and RAG solutions. This hands-on role focuses on architecture, Python development, AWS, and production AI applications.

You will design end-to-end systems, mentor engineers, and drive best practices across CI/CD, security, and reliability in enterprise environments.

Qualifications

• Extensive software engineering experience with technical leadership responsibilities.

Responsibilities

• Own the end-to-end architecture and technical design of LLM and Generative AI solutions.
• Translate business requirements into scalable solution architectures, technical plans, and development tasks.
• Define architecture standards, integration patterns, technical decisions, and engineering best practices.
• Provide technical direction, mentor engineers, and lead design and code reviews.
• Design and develop scalable Python APIs and microservices using FastAPI, Flask, or similar frameworks.
• Architect and implement LLM applications, LangChain workflows, and RAG pipelines.
• Define strategies for prompt engineering, embeddings, chunking, retrieval, re-ranking, and model evaluation.
• Design and optimize vector database solutions using Pinecone, Chroma, FAISS, Milvus, or similar technologies.
• Establish monitoring and evaluation for quality, relevance, latency, reliability, safety, and cost.
• Design secure, scalable, and resilient AI services on AWS, including Lambda, EC2, S3, EKS, and RDS.
• Partner with DevOps/MLOps teams on CI/CD, infrastructure automation, observability, incident response, and production support.
• Ensure solutions meet enterprise requirements for security, governance, availability, scalability, fault tolerance, and operational readiness.

Skills

Python

Backend development

Technical leadership

LLM/Generative AI

Architectural design

Mentoring engineers

Code reviews

Tools

FastAPI

Flask

LangChain

OpenAI

Anthropic

Hugging Face

Pinecone

FAISS

Milvus

AWS

Job description

Pb Consulting in the United States seeks a Senior AI Solutions Architect to lead the architecture and development of scalable Generative AI, LLM, and RAG solutions. This hands-on role focuses on architecture, Python development, AWS, and production AI applications.

You will design end-to-end systems, mentor engineers, and drive best practices across CI/CD, security, and reliability in enterprise environments.