Jobs, fresher vacancy - Contract Senior Front End Engineer • UK

Company: Noble Panacea

UK

Noble Panacea is a new revolutionary skincare brand founded by Nobel Laureate Sir Fraser Stoddart and launched in October 2019. The ground-breaking OSMV™ Technology at the core of the brand enables transformational efficacy and precision. We create deep respect & intention by adhering to the global principles of green chemistry. We take our commitment to nature and sustainability to all stages of product development, from R&D to packaging. Ultimately, we strive to promote absolute skin health by empowering all who seek authentic, natural, and ageless beauty. We are seeking a Senior Frontend Engineer to take a lead role in shaping the next generation of our global e-commerce experience. You’ll be key in our migration to BigCommerce’s Catalyst framework and responsible for front-end performance. You will collaborate closely with Product, Design, and Engineering leadership to create elegant, performant, and maintainable front-end solutions for our luxury skincare brand. Employment Status: Contract (3 months, with possibility to extend) Duties and Responsibilities Include: Lead front-end build/migration of pages/components from Stencil to Catalyst (or headless alternative) using the architecture defined by our SI vendor. Implement a high-performance front-end layer: ensure site speed, Lighthouse metrics, core web vitals improvements. Collaborate with the internal and external cross-functional team of Product, Engineering, and QA, to ensure smooth integration with backend, APIs, and Makeswift configuration. Build reusable component libraries, UI patterns and page templates aligned to our design system and brand. Ensure development best practices: code quality, reviews, performance optimisation, accessibility. Work in Agile/Scrum environment; deliver sprints of new pages/features, monitor and fix performance regression. Provide mentoring and knowledge transfer to any new internal full-stack engineers to ramp them up on Catalyst/Makeswift environment. Coordinate with QA automation to ensure test coverage for front-end and cross-browser/device performance. Help define monitoring / instrumentation for front-end performance (e.g., real-user metrics, analytics hooks) and support integration with backend performance analytics. RequirementsStrong front-end engineering background (≥ 6-10 yrs) in React, TypeScript, modern CSS/Sass, responsive design and performance optimisation. Proven experience in a headless e-commerce or large CMS/makeswift-type architecture, ideally with migration from monolithic or older front-end frameworks (e.g., Stencil) to headless/use of an API-first approach. Experience with the BigCommerce Catalyst architecture (or headless BigCommerce) or similar (e.g., Contentful, Shopify Hydrogen, Next.js) is a significant plus. Demonstrated record of improving web performance (Core Web Vitals, Lighthouse scores, page-load, TTI, etc). Comfortable collaborating in multi-vendor and large team environments; can pick up existing codebase quickly and lead build with limited ramp-up. Excellent problem-solving, clear communication, ability to mentor others. Familiarity with CI/CD pipelines, front-end performance tooling (WebPageTest, Lighthouse CI, etc), browser profiling, bundler optimisation. Bonus: experience working in e-commerce (luxury/retail) environment, understanding of BigCommerce ecosystem and Stencil limitations. Desirable Attributes Self-starter, comfortable with ambiguity (legacy Stencil context, integration issues). Pragmatic trade-off mindset (speed vs. perfection) given urgency. Able to document and articulate decisions, support hand-over to internal team. Experience in international/EMEA deployments helpful as you’ll be working globally.