Senior Lead AI Engineer - Banking Tech & Generative AI

Citi Group; City of Westminster; On-site; GBP 140,000 - 190,000; Full time

Job summary

Citi is seeking a Lead AI Engineer in London to drive architectural ownership and hands-on delivery of agentic AI platforms. You will partner with technology and business teams to accelerate AI-first engineering and deliver scalable, production-grade AI services in a regulated banking environment.

The role requires expert Python/Java, experience with LLMs from multiple providers, and mastery of Docker/Kubernetes.

Qualifications

• Progressive software engineering experience with hands-on contributions.
• Advanced Python and Java development experience.
• Dedicated experience in AI, LLM-based systems, and agentic architectures.
• Proven track record delivering enterprise-scale AI solutions in complex environments.
• Strong understanding of banking domain and regulatory requirements.

Responsibilities

• Lead design, hands-on implementation, and deployment of scalable agentic AI solutions for high-impact use cases.
• Architect advanced agent-based systems integrating multiple LLM providers (OpenAI, Anthropic, Google).
• Build and deliver production-grade AI applications using modern ML/LLM platforms and AI coding tools.
• Champion MVP-driven delivery with rapid iteration and A/B testing to achieve fast value.
• Define evaluation frameworks and metrics for AI and agent performance aligned with business goals.
• Evaluate emerging AI technologies and coach teams toward an AI-first engineering culture.
• Provide front-line technical leadership and mentor engineers across AI, data, and applications.

Skills

Python

Java (Spring Boot)

JavaScript/TypeScript

AI/ML fundamentals

Leadership

Education

Bachelor's or Master's in Computer Science, AI, Robotics or related field

Tools

Devin

GitHub Copilot

Claude Code

Antigravity

Google ADK

Docker

Kubernetes

Job description

Citi is seeking a Lead AI Engineer in London to drive architectural ownership and hands-on delivery of agentic AI platforms. You will partner with technology and business teams to accelerate AI-first engineering and deliver scalable, production-grade AI services in a regulated banking environment.

The role requires expert Python/Java, experience with LLMs from multiple providers, and mastery of Docker/Kubernetes.