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Full-Stack Node.js/React Developer

Full-Stack Node.js/React Developer

Hybrid

London, United kingdom

£ 80,000 /year

Junior

Full Time

04-11-2025

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Skills

Communication Ruby Architecture react node.js AWS JS Next.js React.js Vue.js Web Development Microservices

Job Specifications

Job Title: Full-Stack Node.js/React Developer

Location: Hybrid in London (2-3 days)

Employment Type: Permanent

Salary: Up to £80,000 + package

Start Date: Immediate

Industry: Payments

A regulated FinTech (UK & EU EMI-licenced) backed by Banking Circle’s payment rails are looking for a seasoned Node.js/React Developer to join their team on a full-time permanent basis. They're on a mission to redefine how businesses access account-to-account payments, card issuing, and financial services across the UK, EU, and US, serving both direct customers and strategic partners.

You’ll be one of the founding members driving their migration to a modern Node.js / React / API-first stack, rebuilding client-facing applications from the ground up and shaping the future of financial product delivery.

Full-Stack Node.js/React Developer – Key Responsibilities

Build the new Node.js / React client stack (Next.js experience a plus)
Integrate with existing Ruby services, adding APIs or middleware as needed
Drive secure, multi-tenant authorization/authentication (OIDC/OAuth)
Contribute to frontend design and user experience, especially in financial UI

Full-Stack Node.js/React Developer – Key Skills Required

3–5 years of full stack web development
Strong Node.js experience (especially for backend / middleware)
Deep React.js experience using modern practices and state management
Solid understanding of frontend design: usability, accessibility, polished UI
Proven experience or understanding of OIDC / OAuth flows in multi-tenant systems
Security mindset (handling sensitive data, regulatory constraints)
Excellent communication - able to present technical decisions to product / business stakeholders

Desirable / Bonus

Experience in financial services, payments, banking or regulated environments
Exposure to Next.js, Vue.js, or other JS frameworks
Prior work migrating legacy systems or transforming architecture
Familiarity with containerisation, microservices, AWS deployments

Please apply now if this role is of interest.

About the Company

X4 Technology focus on helping you succeed by connecting the right people and providing the data and insights to help execute your strategic priorities. Our consultants will help you align your people strategy to your business objectives, and guide you with simplicity through the process. Core industries: Consumer Markets, Financial Services, Healthcare, Life Sciences & Technology Get in touch to find out more: Contact@x4-technology.com United Kingdom: T: +44 2078 127 700 United States: T: (718) 360-0570 Germany: T... Know more