Senior AI Platform Engineer - GenAI & LLM Architect

Test Triangle Limited; Sheffield; On-site; GBP 120,000 - 180,000; Full time

Job summary

Test Triangle Limited in the United Kingdom seeks a highly experienced Lead AI Platform Engineer to drive AI capabilities within a Finance AI platform. This hands-on leadership role focuses on scalable engineering patterns, accelerating delivery, and mentoring development teams.

You will design and oversee LLM, RAG, and Agentic AI integrations across Azure, AWS, and GCP, collaborate with architects to ensure secure, maintainable solutions, and set standards for observability, governance, and

Qualifications

• 12+ years of software engineering experience with Java and/or Python.
• Experience building cloud-native applications on Azure, AWS or GCP.
• Strong knowledge of Kubernetes, Microservices, APIs, Event-Driven Architecture, and DevOps practices.
• Hands-on experience with LLM integration, RAG architectures, AI orchestration frameworks, and Agentic AI solutions.
• Experience with LangChain, LangGraph, Semantic Kernel, AutoGen, CrewAI or equivalent.

Responsibilities

• Lead the implementation of AI-enabled applications and platform capabilities.
• Establish reusable patterns, frameworks, and best practices for AI engineering.
• Design and oversee LLM, RAG, and Agentic AI integrations within enterprise environments.
• Collaborate with architects and engineering teams to ensure scalable, secure, and maintainable solutions.
• Define standards for AI observability, governance, security, and performance.
• Mentor engineers and provide technical leadership across AI development initiatives.
• Contribute hands-on to solution design, development, code reviews, and production deployment.

Skills

Java

Python

Cloud-native engineering

Kubernetes

LLM integration

Agentic AI

AI frameworks/tools

Tools

Azure

AWS

GCP

Job description

Test Triangle Limited in the United Kingdom seeks a highly experienced Lead AI Platform Engineer to drive AI capabilities within a Finance AI platform. This hands-on leadership role focuses on scalable engineering patterns, accelerating delivery, and mentoring development teams.

You will design and oversee LLM, RAG, and Agentic AI integrations across Azure, AWS, and GCP, collaborate with architects to ensure secure, maintainable solutions, and set standards for observability, governance, and