Senior AI/LLM Engineer

AI / LLM Engineer Permanent | Up to £140,000 + benefits London | 5 days on-site A fast-moving, rapidly growing commodity trading firm, and a leading market-maker in energy derivatives, is continuing to scale and is looking for an AI / LLM Engineer to help design and deploy advanced AI-driven solutions across the business. This role is suited to an engineer who enjoys working close to the business, building production-grade AI systems, and operating in a high-performance financial services environment.Overview As an AI / LLM Engineer, you will be responsible for building, deploying, and optimising AI and large language model solutions that support trading, risk, operations, and decision-making workflows. You will work closely with engineers, traders, and senior stakeholders to translate real business problems into scalable AI systems.This is a hands-on engineering role, with a strong focus on production deployment, cloud infrastructure, and real-world model usage rather than pure research.Role Responsibilities

• Design, build, and deploy AI and LLM-based solutions into production environments
• Work with large language models, prompt engineering, orchestration, and evaluation
• Integrate AI solutions into existing trading, analytics, and operational platforms
• Build scalable pipelines and services across multi-cloud environments (AWS, GCP, Azure)
• Collaborate closely with engineering, data, and business teams to deliver real commercial impact
• Develop and integrate intelligent AI agents / agentic workflows that act autonomously to solve key problems across the firm
• Ensure reliability, performance, and security of AI systems in a regulated financial environment
• Continuously improve model performance, cost efficiency, and scalability

Essential Skills & Experience

• Proven experience as an AI Engineer, Machine Learning Engineer, or LLM-focused Engineer
• Hands-on experience building and deploying LLM-powered applications
• Strong multi-cloud experience across AWS, GCP, and/or Azure
• Background in financial services, ideally within trading, capital markets, commodity trading, or large enterprise banking
• Strong software engineering skills with a focus on production systems
• Comfortable working in fast-paced, high-pressure environments
• Ideally looking for practical experience building or deploying intelligent AI agents / agentic systems that automate workflows in production - whether custom-built or via frameworks like AI-Gentic and similar platforms

Package

• Salary around £140,000, dependent on experience
• Competitive benefits package
• Onsite (5x week in London)