Lead AI Engineer for RAG & Cloud Platform

Oliver James Associates Ltd.; Utrecht; On-site; EUR 90,000 - 130,000; Full time

Job summary

Oliver James Associates Ltd. is seeking a Lead Engineer AI, RAG & Cloud Infrastructure to drive technical direction for a modern RAG-based chatbot platform.

You will lead cross-functional teams, shape architecture and deliver production-grade AI solutions at scale across document processing and information retrieval. The role combines hands-on coding with architectural leadership, ensuring reliable cloud infrastructure, CI/CD, and secure, observable services.

Qualifications

• 4+ years of experience in software, cloud, platform or infrastructure engineering.
• Strong hands-on experience with Retrieval-Augmented Generation (RAG).
• Experience developing applications using LLMs / Generative AI.
• Experience with production-grade AI, chatbot or knowledge-retrieval platforms.
• Strong experience with cloud infrastructure, preferably Azure.
• Strong Python development experience.
• Experience with APIs, microservices and distributed systems.
• Knowledge of vector databases, vector search, embeddings and semantic search.
• Experience with document processing and information retrieval.
• Experience with DevOps, CI/CD and Infrastructure as Code.
• Experience taking technical ownership or acting as a Lead, Staff or Principal Engineer.
• Strong communication and stakeholder management skills
• The ability to bring structure and alignment to complex environments
• A pragmatic, proactive and delivery-focused mindset

Responsibilities

• Provide technical leadership across the AI, RAG and cloud platform
• Design, develop and improve production-grade RAG and LLM solutions
• Work with document processing, embeddings, vector search and information retrieval
• Improve the quality, accuracy, performance and reliability of chatbot solutions
• Design and maintain scalable cloud infrastructure and platform services
• Develop APIs, integrations and distributed services using modern engineering practices
• Drive best practices around CI/CD, Infrastructure as Code, security and observability
• Identify architectural and technical improvements and turn them into actionable initiatives
• Work closely with software engineers, AI specialists, platform engineers and product stakeholders
• Provide technical guidance and support to multiple workstreams
• Help create alignment between teams following a recent organisational integration
• Communicate architectural decisions and technical concepts clearly to both technical and non-technical stakeholders
• Remain hands-on and contribute directly to the engineering challenges of the platform

Skills

RAG

LLMs

Python

Cloud infra

APIs

DevOps

IaC

Microservices

Vector search

Document processing

Tools

Kubernetes

Terraform

LangChain

Job description

Oliver James Associates Ltd. is seeking a Lead Engineer AI, RAG & Cloud Infrastructure to drive technical direction for a modern RAG-based chatbot platform.

You will lead cross-functional teams, shape architecture and deliver production-grade AI solutions at scale across document processing and information retrieval. The role combines hands-on coding with architectural leadership, ensuring reliable cloud infrastructure, CI/CD, and secure, observable services.