Senior AI Engineer (Python) — Hybrid, Global-Scale AI

Citi; Belfast City District; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

27 days annual leave

Annual bonus

Private medical & life insurance

Employee assistance program

Pension plan

Parental leave

Employee discounts

Learning & development resources

Job summary

Citi is seeking an AI Engineer to join its global Tech team, building scalable AI systems powering a Global Lending Platform. You will work with LLMs, MCP tools and agent frameworks in a fast-paced SCRUM environment, with hybrid working options.

You will contribute to production-grade software, collaborate across teams, and grow through mentorship and continuous learning in a leading financial institution. The role emphasizes ownership, code reviews, and delivering features with reliability

Qualifications

• Hands-on experience applying large language models (LLMs) to solve real business problems, from ideation through to production deployment.
• Strong fluency in the Python AI/ML ecosystem, including Pydantic, REST API integration, database access, and orchestration frameworks such as ADK or LangGraph.
• Proficient in SQL and working with complex data in enterprise environments.
• A genuine team player who can also operate with full autonomy in office or remote settings.
• Excellent interpersonal and communication skills.
• Bachelor's degree in Computer Science is required.

Responsibilities

• Implement software components and applications for AI systems, focusing on MCP tools and AI agent frameworks.
• Operate as a committed SCRUM team member—own your work, ship features reliably, deliver production-grade applications.
• Balance speed with engineering excellence and drive tasks to completion in a fast-paced environment.
• Contribute to code reviews, technical discussions, and shared standards, collaborating with peers to grow.

Skills

LLMs

Python

REST API

SQL

Team player

Communication

Bachelor's degree in Computer Science

Education

Bachelor's degree in Computer Science

Tools

Pydantic

LangGraph

ADK

Job description

Citi is seeking an AI Engineer to join its global Tech team, building scalable AI systems powering a Global Lending Platform. You will work with LLMs, MCP tools and agent frameworks in a fast-paced SCRUM environment, with hybrid working options.

You will contribute to production-grade software, collaborate across teams, and grow through mentorship and continuous learning in a leading financial institution. The role emphasizes ownership, code reviews, and delivering features with reliability