UI Architect

Location: South East London

UI Architect Global Financial Services / Payments Client

Location:

London - 2 days per week Rate: £550-£570 per day

Contract:

6 months initial IR35 Status:
Outside IR35

Role Overview We are supporting a global financial services organisation operating in cross-border payments and emerging markets as they continue a large-scale technology transformation. They are looking for an experienced UI Architect to lead the design and delivery of scalable, modern front-end platforms aligned to a microservices architecture. This is a hands-on architecture role with responsibility for defining standards, driving best practice and shaping the frontend ecosystem across multiple products.

Key Responsibilities Define and own frontend architecture across a microservices-based platform Design scalable UI solutions aligned to API-first backend services Establish reusable components, UI standards and enterprise design systems Define integration approaches with RESTful and event-driven services Ensure performance, security, and responsiveness across web applications Embed CI/CD, testing, and Dev Ops best practices within frontend teams Support containerised deployments using Docker and Kubernetes Mentor engineers and provide technical leadership across UI development Drive adoption of AI-assisted development approaches including prompt engineering and tools such as Copilot Collaborate with product, UX, backend and Dev Ops teams across the full delivery lifecycle Required Experience Strong experience in UI or Frontend Architecture within complex environments Expertise in React, JavaScript (ES6), Type Script, HTML5 and CSS3 Experience designing SPA or micro-frontend architectures Strong understanding of API integration (REST, API gateway patterns, BFF) Experience working in cloud environments such as AWS or Azure Exposure to Docker, Kubernetes and CI/CD pipelines Strong focus on performance optimisation techniques such as lazy loading and code splitting Experience using AI development tools (e.g., Git Hub Copilot) within engineering workflows Nice to Have Event-driven architecture experience (Kafka, async patterns) Observability tools (Prometheus, Grafana, ELK) Frontend security (OAuth2, JWT) Automated testing frameworks (Cypress, Playwright, Jest) Design systems and tooling (Storybook, Figma) Experience in financial services, fintech, or payments environments Reasonable Adjustments:
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