About the Role

Our client, a top IT consultancy, is partnering with a leading financial services organisation, to establish a dedicated Generative AI hub in Valencia. This new unit will be the centre of the financial services provider's AI-driven transformation — building intelligent applications that modernise financial workflows, surface AI-generated insights, and deliver seamless digital experiences to advisors and end users.

We are looking for a Senior Frontend Developer to be one of the founding engineers of this hub. You will own the user-facing layer of IMF's Agentic AI platform: building React applications that interact with LLM agents in real time, rendering structured AI outputs, and creating interfaces that make complex financial AI capabilities accessible and intuitive for users.

Key Responsibilities

Design and build production-grade React applications for the organisation's Generative AI platform, including agent-facing dashboards, document intelligence interfaces, and advisor-facing portals

Develop reusable, accessible, and well-tested UI component libraries in React and TypeScript

Implement real-time agent interaction interfaces using AG-UI and A2A protocols, including streaming LLM output rendering

Integrate frontend applications with RESTful and event-driven backend APIs (Node.js / .NET 8 / FastAPI)

Consume and visualise AI-generated outputs: RAG responses, document analysis results, agent reasoning traces, and evaluation metrics

Implement authentication and RBAC flows using Azure Active Directory / MSAL

Connect applications to Azure App Service and Azure Static Web Apps deployment pipelines

Build frontend observability integrations with Azure Monitor and Application Insights

Ensure performance, accessibility (WCAG), and cross-browser compatibility across all interfaces

Collaborate with UX, backend engineers, and AI/ML specialists to translate complex agent behaviours into clear, usable interfaces

Maintain component documentation (Storybook) and uphold frontend coding standards

Contribute to the technical culture and engineering practices of the Valencia hub from day one

Technology Stack

Frontend Core





React 18+ ·TypeScript — primary UI framework and language

Next.js or Vite — application bundling and server-side rendering

React Query / Zustand / Redux Toolkit — state and data management

Tailwind CSS / CSS Modules — styling

Storybook — component documentation and design system

Jest ·React Testing Library · Playwright — unit, integration and E2E testing

Agent & AI Interface Layer

AG-UI protocol — agent-to-UI streaming and real-time interaction interfaces

A2A (Agent-to-Agent) — inter-agent communication surfaced at the UI layer

MCP (Model Context Protocol) — context and tool-call integration in the frontend

Azure OpenAI response streaming — real-time LLM output rendering and progressive disclosure

Azure Platform Integration

Azure App Service · Azure Static Web Apps — hosting and deployment

Azure Active Directory / MSAL — authentication & RBAC

Azure Monitor · Application Insights — frontend observability and error tracking

Azure Key Vault — secure handling of client-side secrets and configuration

Azure Kubernetes Service (AKS) — understanding of the agent runtime environment

Data & Backend Contracts

REST APIs served by Node.js or .NET 8 (ASP.NET Core) — primary integration surface

FastAPI endpoints — agent tooling and LLM-facing APIs

Azure Cosmos DB — agent short-term / long-term memory surfaced in UI

Azure Cognitive Search — vector search and RAG results rendered in UI components

DevOps & Tooling

Git ·GitHub / Azure DevOps — version control and CI/CD

Docker — local development and containerised builds

ESLint ·Prettier · Husky — code quality and pre-commit hooks

Required

Skills & Experience





5+ years of frontend development experience in production environments

Expert-level React and TypeScript — hooks, context, performance optimisation, custom component libraries

Strong understanding of modern JavaScript (ES2022+), web APIs, and browser rendering

Experience building and consuming RESTful APIs, including streaming and real-time data

Solid knowledge of state management patterns (React Query, Zustand or Redux Toolkit)

Experience with Azure platform services — especially App Service, Static Web Apps, Active Directory

Familiarity with authentication flows: OAuth 2.0, OpenID Connect, MSAL

Experience with automated testing: unit (Jest / RTL) and E2E (Playwright or Cypress)

Solid understanding of web accessibility (WCAG 2.1 AA) and cross-browser compatibility

Ability to work autonomously in a greenfield, fast-paced environment with shifting requirements

Fluent English — working language for all technical documentation and ceremonies

Location - preferably Valencia, but open to other locations with availability to travel to Valencia on a regular basis. In that case, remote.

Nice to Have

Experience integrating with LLM streaming APIs (Azure OpenAI, OpenAI, Anthropic)

Knowledge of AG-UI, A2A or MCP protocols for agent-facing user interfaces

Familiarity with Next.js App Router / Server Components

Experience with design systems and Storybook in large codebases

Understanding of RAG pipelines and how to surface vector search results effectively in the UI

Prior experience in a hub or centre-of-excellence environment

Background in financial services, banking or fintech

GitHub certification

Spanish language skills

Why Join This Team

Founding engineer role — shape the UI architecture and design culture of a brand-new GenAI hub

Work at the intersection of React and Agentic AI — a genuinely rare combination in the market

Backed by the organisation's general engineering community, tooling and career development programmes

Valencia-based hub with a collaborative, senior-weighted team

Direct exposure to the company's transformation agenda and senior stakeholders

📌 Senior Frontend Developer (Valencia)
🏢 ISG International Service Group
📍 Valencia