Senior AI Frontend Engineer; Developer Productivity), VP

Overview

We’re seeking a Senior Frontend Engineer with a strong React/Type Script background, passionate about crafting exceptional AI product experiences. You’ll own the user-facing layer of our next generation Developer Productivity platform at Citi, transforming complex AI capabilities—from chat interfaces to rich data visualizations—into intuitive, trustworthy experiences. You’ll collaborate closely with AI, Software Engineers, and the Product team to leverage bleeding-edge Generative AI.

You’ll join a small, high-impact team challenging, modernising and enhancing the experience of our 50,000 engineers globally throughout Citi’s Software Development Life Cycle (SDLC).

You’ll sit within Development Enablement, part of Citi’s CTO organisation. A group focused on innovation, developer platforms and internal tools used across the bank, where we experiment and ship fast, like a startup inside a global bank. Our mission is to transform developer productivity, saving our engineers tens of minutes per day, equating to £10,000,000s of savings at Citi’s scale.

Become a citizen within Developer Enablement's AI & UX

By the end of your third month, you will have:

• Released to production a small new or enhanced AI-first user interface that will positively impact thousands of Software Engineers and Business Analysts working in Software Requirements Engineering.
• Started raising the bar in our React.js codebase by introducing better componentisation, testing, and Storybook.
• Established a network of UI engineers across the organisation to contribute and learn about best practices.
• Gained buy-in from the team on architectural principles, ways of working and system requirements. For example, you might choose to separate core logic from the UI in the Generated by Stylus Work spaces Internal Use Only 2 UI; using Zustand as the data layer; we may decide that the UI should respond to any action in under 100ms.

Own and champion best practices for AI-specific UX

By the end of this first year, you will have:

• Owned and championed the implementation of best practices for interaction design within the team, establishing clear guidelines for AI-specific UX patterns.
• Mentored junior engineers on best practices for designing and implementing AI-driven user interfaces.
• Designed and implemented production-grade features for AI solutions.
• Contributed AI-specific UX expertise to solving problems that require AI knowledge.
• Helped scope and plan future AI development work.
• Expanded our suite of evaluation metrics and techniques to simplify Agentic-AI development.
• Maintained consistent interactions with Engineering Leads across CTO to unblock shipping to production.
• Represented Developer Enablement with regards to our AI-specific UX to stakeholders on multiple occasions.

Key qualifications

• Strong expertise (5–10+ years) building modern frontend applications with React and Type Script.
• Proficiency in JavaScript, React (or another UI framework), and Type Script.
• Experience with state management libraries (Redux, Context API, Zustand) for building well-structured applications.
• Experience with Storybook or componentized 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 optimization, and responsive design.
• Hands-on experience with tools like Lang Chain / Lang Graph / Vercel AI SDK / Google ADK (Agent Development Kit).
• Familiarity with CI/CD tools (e.g., Jenkins, Tekton, ArgoCD, Harness).

• React, Type Script, Next.js/Vite, Storybook, internal design systems, Lang Chain, Vercel AI SDK, Lang Graph, Google ADK (Agent Development Kit).
• Mac or PC — your choice.
• Access to time-saving AI tools such as Git Hub Copilot and Cognition.ai's Devin.

By joining Citi Belfast, you will be part of a business casual workplace with a hybrid working model (up to 2 days at home per week), and receive a competitive base salary (annually reviewed), plus a range of benefits:

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