Frontend Developer

• 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
• 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

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, * Azure OpenAI response streaming - real-time LLM output rendering and progressive disclosure
• Azure App Service · Azure Static Web Apps - hosting and deployment
• 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
• 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

• 5+ years of frontend development experience in production environments
• Expert-level React and TypeScript - hooks, context, performance optimisation, custom component libraries
• 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)
• 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

• 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 global 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

full_time

Organization ISG International Service Group

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.