AI Engineer

Citigroup Inc.; City of Westminster; On-site; GBP 120,000 - 170,000; Full time

Benefits offered by this job

27 days annual leave

Discretional annual bonus

Private Medical Care

Life Insurance

Employee Assistance Program

Pension Plan

Paid Parental Leave

Learning & development resources

Job summary

Citigroup Inc. London seeks an AI Engineer to drive AI-powered solutions across trading, risk management, and client service. You will design, develop, and deploy AI-enabled applications leveraging generative AI, agentic systems, and automated governance in collaboration with traders, quants, and technology teams.

The role emphasizes production-grade AI delivery, integration with existing platforms, and ongoing evaluation of emerging AI technologies to meet regulatory and governance requirements.

Qualifications

• Professional experience in AI/ML engineering, software development, or data science roles.
• Hands-on experience building and deploying production AI applications.
• Proven track record delivering end-to-end technical solutions with generative AI techniques and LLMs.

Responsibilities

• Architect and implement RAG pipelines for knowledge retrieval from financial data sources.
• Design and optimize vector databases and embedding strategies for information retrieval.
• Develop prompt engineering frameworks and fine-tuning strategies for domain-specific LLM apps.
• Build multi-agent systems and guardrails, validation, and monitoring for AI applications.
• Create data pipelines and APIs to integrate AI capabilities into trading/risk platforms.

Skills

Python

SQL

Front-end development

Job description

The Global Rates business is seeking an exceptional AI Engineer to drive the development and implementation of cutting-edge artificial intelligence solutions that will transform our trading, risk management, and client service capabilities. This role sits at the intersection of advanced AI technology and financial markets, offering the opportunity to build innovative solutions that directly impact business outcomes. As an AI Engineer within Global Rates, you will be responsible for designing, developing, and deploying AI-powered applications and systems that leverage the latest advancements in generative AI, agentic frameworks, and intelligent automation. You will work closely with traders, sales, quants and technology teams to identify opportunities for AI integration and deliver production-grade solutions., AI Solution Development

Technical Architecture & Implementation

• Architect and implement RAG pipelines for knowledge retrieval from structured and unstructured financial data sources
• Design and optimize vector databases and embedding strategies for efficient information retrieval
• Develop prompt engineering frameworks and fine-tuning strategies for domain-specific LLM applications
• Build multi-agent systems that can collaborate to solve complex financial problems
• Implement guardrails, validation frameworks, and monitoring systems for AI applications

Data Engineering & Integration

• Design and build data pipelines to support AI/ML workflows, integrating market data, trade data, and research content
• Develop ETL processes for preparing training data and maintaining knowledge bases
• Create APIs and microservices to integrate AI capabilities into existing trading and risk platforms
• Optimize data storage and retrieval mechanisms for high-performance AI applications

Collaboration & Innovation

• Partner with business stakeholders to identify high-impact use cases for AI implementation
• Collaborate with quantitative researchers to integrate AI techniques into pricing and risk models
• Work with compliance and risk teams to ensure AI solutions meet regulatory and governance requirements
• Stay current with emerging AI technologies and evaluate their applicability to Global Rates business needs
• Contribute to the firm's AI/ML community of practice and knowledge sharing initiatives

Professional Experience

• Professional experience in AI/ML engineering, software development, or data science roles
• Demonstrated experience building and deploying production AI applications
• Proven track record of delivering end-to-end technical solutions, Hands-on experience with generative AI techniques and large language models (GPT, Claude, Llama, etc.)
• Practical experience implementing Retrieval-Augmented Generation (RAG) systems
• Experience with agentic frameworks and autonomous coding systems
• Knowledge of statistics and machine learning techniques

Programming & Development

• Strong proficiency in Python
• Strong SQL skills
• Front end development

Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact.

By joining Citi London, you will not only be part of a business casual workplace and receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:

• 27 days annual leave (plus bank holidays)
• A discretional annual performance related bonus
• Private Medical Care & Life Insurance
• Employee Assistance Program
• Pension Plan
• Paid Parental Leave
• Special discounts for employees, family, and friends
• Access to an array of learning and development resources