Principal Software Engineer - React Location: Remote (UK / Ireland) Type: Permanent | Full-time Contact: Ryan Quinn on LinkedIn Company: OCHO - Building Teams The Opportunity My client is hiring a Principal Software Engineer (React) to help shape the next generation of cloud-based solutions. This is a chance to establish technical leadership while staying hands-on, guiding the design and delivery of front-end systems that power merchant-first platforms at scale. You'll work on data-rich, customer-facing applications using React and modern JavaScript, collaborating with UX and Product teams to build intuitive portals, secure hosted payment pages, and reusable component libraries. If you're looking for a role where you can lead, mentor, and still code, this is it. What You'll Do Lead the design and delivery of front-end applications using modern JavaScript and React Translate prototypes into pixel-perfect, responsive, accessible user interfaces Collaborate with UX, Product, and Engineering teams to deliver merchant-first solutions Build and maintain a reusable component library and help define the design system Contribute across the software lifecycle, from requirements through to release Mentor engineers, provide technical direction, and foster best practices in front-end development Support deployment activities, ensuring quality and reliability at scale What You'll Bring 10 years' experience in software engineering, with strong front-end expertise Deep knowledge of JavaScript (ES6/7), React, HTML, CSS (SASS, LESS, or SCSS) Hands-on experience with build tools Strong design sense, able to deliver data-rich applications (D3.js or similar) Experience integrating with REST APIs and modern authentication (OAuth2 / OIDC) Track record of building scalable front-end systems optimised for performance Strong analytical and problem-solving skills, with the ability to lead by example Comfortable mentoring, coaching, and providing technical leadership across teams Nice to Have: Experience with Vue or Angular in addition to React Background in fintech, or other regulated industries Why Join? Remote-first role across the UK and Ireland Opportunity to establish technical leadership while staying hands-on Work in small, empowered teams with autonomy and impact Inclusive culture where growth, learning, and collaboration are prioritised Interested? Connect with Ryan Quinn on LinkedIn for an informal chat, or apply directly with your CV. OCHO - Building Teams Skills: JavaScript AWS TypeScript