Applied AI Engineer: Production-Grade AI, RAG & Agents

Dex; Greater London; On-site; GBP 90,000 - 125,000; Full time

Job summary

Dex, in partnership with a trusted client, seeks a senior software engineer to ship production-grade AI features within a regulated enterprise platform. You will own RAG pipelines, multi-agent infrastructure, and end-to-end backend services powering AI applications.

You will mentor junior engineers and help grow the team while ensuring scalability, performance, and security across the stack.

Qualifications

• 5+ years of professional software engineering experience shipping production systems.
• Proven production AI application experience with RAG pipelines and agent orchestration.
• Fluency in LLM evaluation techniques for accuracy, reliability, and safety.
• Strong backend skills in Python and relational databases.
• Experience with cloud infrastructure, Docker, Kubernetes, CI/CD, and high-throughput queues.

Responsibilities

• Develop and deploy production-grade AI features, including RAG systems, multi-agent infrastructure, and robust evaluation frameworks.
• Build the backend services and APIs that power these AI applications.
• Design and implement data pipelines for training, evaluation, and continuous improvement of AI models.
• Ensure the scalability, performance, and security of AI systems across the entire stack.
• Mentor junior engineers and contribute to team growth.

Skills

Python

LLM evaluation

RAG pipelines

Agent orchestration

Performance monitoring

Cloud infrastructure

Docker

Kubernetes

CI/CD

Relational databases

Tools

Docker

Kubernetes

CI/CD

Job description

Dex, in partnership with a trusted client, seeks a senior software engineer to ship production-grade AI features within a regulated enterprise platform. You will own RAG pipelines, multi-agent infrastructure, and end-to-end backend services powering AI applications.

You will mentor junior engineers and help grow the team while ensuring scalability, performance, and security across the stack.