CI

Lead AI Engineer - VP

Citigroup belfast Posted 02 Oct 2026 Closing: 01 Nov 2026
Permanent Hybrid

Role Description & Overview

Overview

In this Lead AI Engineer role, you will shape the technical direction of enterprise AI initiatives and mentor engineers within Citi’s global technology team. You will architect scalable AI-driven applications and data pipelines, focusing on production-ready systems that leverage data at scale. The position emphasizes RAG-based solutions, agent orchestration, and collaboration with cross-functional stakeholders to deliver impactful, compliant AI capabilities. You will own architectural decisions and drive quality through standards, tests, and risk management.

Pay / Benefits
  • hybrid work arrangement
  • continuous learning and development
  • collaborative engineering culture
  • competitive compensation and benefits
  • wellbeing support and work-life balance resources
Responsibilities
  • Architect and develop AI-driven applications and data pipelines using Python
  • Lead design and implementation of Retrieval-Augmented Generation (RAG) systems and agent orchestration frameworks
  • Collaborate with technology and business stakeholders to translate requirements into robust implementations
  • Define and enforce coding standards, testing practices, and implementation processes
  • Evaluate business and system challenges to craft innovative solutions
  • Coach and guide mid-level engineers and analysts, aligning work with project delivery
  • Identify and manage technical risks, ensuring security, compliance, and platform integrity
Key requirements
  • 6–10 years of software or application development experience
  • Hands-on Python for application development, data ingestion, and ETL
  • Experience building RAG pipelines and with ADK, LangGraph, or LangChain
  • Advanced SQL skills for large-scale data queries
  • Solid understanding of Transformer architecture in production AI
  • Proven ability to lead technical teams and deliver in fast-paced environments
  • Strong communication skills to convey complex concepts to diverse audiences
  • leadership
  • cross-functional collaboration
  • clear communication
  • Python
  • RAG pipelines
  • agent orchestration (ADK, LangGraph, LangChain)
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Key Details
  • Date Posted: 02 Oct 2026
  • Location: belfast
  • Employment: Permanent
  • Workplace: Hybrid
  • Specialism: General
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Employer Profile
CI
Citigroup
Verified Practice / Corporate

Verified accountancy practice or enterprise finance team operating across the UK economy.

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