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Senior AI Frontend Engineer (Developer Productivity)

https://www.citi.com/ Logo

Citi

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Location:
United Kingdom , Belfast

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Contract Type:
Not provided

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Salary:

Not provided

Job Description:

We're seeking a Senior Frontend Engineer with a strong React/TypeScript background, passionate about crafting exceptional AI product experiences. You'll own the user-facing layer of our nextgeneration Developer Productivity platform @ Citi, transforming complex AI capabilities - from chat interfaces to rich data visualizations - into intuitive, trustworthy experiences. You'll collaborate closely with other AI, Software Engineers and the Product team to leverage bleeding-edge Generative AI. You'll be joining a small, high-impact team challenging, changing, modernising & enhancing the experience of our 50,000 engineers globally throughout Citi's SDLC (Software Development Life Cycle).

Job Responsibility:

  • Own the user-facing layer of our nextgeneration Developer Productivity platform @ Citi, transforming complex AI capabilities - from chat interfaces to rich data visualizations - into intuitive, trustworthy experiences
  • Collaborate closely with other AI, Software Engineers and the Product team to leverage bleeding-edge Generative AI
  • Challenge, change, modernise & enhance the experience of our 50,000 engineers globally throughout Citi's SDLC (Software Development Life Cycle)
  • Release to production a small new or enhanced AI-first user interface that will have positively impacted the lives of thousands of Software Engineers and Business Analysts working in Software Requirements Engineering
  • Start raising the bar in our React.JS codebase introducing better componentisation, testing, storybook
  • Establish network of UI engineers across the organisation to contribute and learn about best practice
  • Get buy in from the team on architectural principles, ways of working and system requirements
  • Own and champion the implementation of best practices for interaction design within the team, establishing clear guidelines for AI-specific UX patterns
  • Mentor junior engineers on best practices for designing and implementing AI-driven user interfaces
  • Design & implement production-grade features for AI solutions
  • Contribute with AI-specific UX expertise to solving problems that require AI expertise
  • Help scoping and planning future AI development work
  • Further expand our suite of eval metrics & techniques to simplify Agentic-AI dev
  • Consistent interactions with Engineering Leads across CTO to unblock shipping to prod
  • Represent Developer Enablement with regards to our AI-specific UX to stakeholders on multiple occasions

Requirements:

  • Strong expertise (5–10+ years) building modern frontend applications with React and TypeScript
  • Proficiency in JavaScript, React (or another UI framework), and TypeScript
  • Experience with state management libraries (redux, context API, zustand), for building wellstructured applications
  • Experience with storybook or componentised development
  • Proficiency in implementing streaming and real-time experiences (e.g., word/token streaming, live updates, progress/status indicators)
  • Strong understanding of frontend architectures, state management, performance optimisation, and responsive design
  • Hands-on experience with any tools like LangChain / LangGraph / Vercel AI SDK / Google ADK (Agent Development Kit)
  • Familiarity with CI/CD tools (e.g.: Jenkins, Tekton, ArgoCD, Harness, etc)
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:
January 26, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
Job Link Share:

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