Staff AI Engineer Jobs

Citi

Location:
United Kingdom, Belfast

Category:
IT - Software Development

Contract Type:
Employment contract

Salary:

Not provided

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Job Description:

We're looking for a talented AI Engineer with proven industry experience in building and shipping production-grade AI/ML at scale to help build our next-generation Developer Productivity platform at Citi using bleeding-edge Generative AI. You'll sit within Development Enablement, part of Citi's CTO organisation, and work on designing and deploying AI solutions for Citi's 50,000 global developers.

Job Responsibility:

Started a relationship with the engineering leads within Developer Enablement
Started learning our experiment-driven AI development workflow
Chosen and deployed an Experiment Tracking and a Data Labelling tool
Consolidated existing evaluation scripts into an existing Evaluation CLI and release it
Devised and executed on at least one Quantitative Test Plan for a GenAI solution
Helped in providing expert clarification regarding our AI methodology and solution to stakeholders outside CTO
Mastered and applied routinely our experiment-driven AI development workflow
Completed a few AI experiments that delivered business features
Started owning and evolving our experiment-driven AI development workflow
Designed and implemented production-grade features for AI solutions

Requirements:

Proficiency in AI Evaluation: regression, classification, information retrieval, power analysis and correlation and statistical testing, and others
Strong understanding of AI/ML fundamentals: Deep Learning, LLMs and implications
Strong server-side Engineering: Python, REST APIs, asynchronous and functional programming
Proficiency with relational and/or NoSQL databases: PostgreSQL, MongoDB
Experience with message queuing systems: Apache Kafka
Deep understanding of containerisation (Docker) and orchestration (Kubernetes)
Familiarity with CI/CD tools (e.g., Jenkins, Tekton, ArgoCD, Harness)
Comfortable coaching software engineers (with no AI experience) in working with an experiment-driven development workflow

What we offer:

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

Additional Information:

Job Posted:
September 05, 2025

Employment Type:

Fulltime

Work Type:

On-site work

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Staff AI Engineer