1 of 1 Permanent Highcharts JS Jobs in Northern Ireland

using tools like Lighthouse , WebPageTest , and techniques like image optimization • Familiarity with frontend testing tools: Jest , React Testing Library , Cypress , or Playwright • Proficiency in data visualization libraries such as Highcharts , D3.js , Chart.js , or ECharts • Experience working with Vue.js (for understanding and migrating legacy systems) • Understanding of cloud-native development , containers, and serverless architecture • Comfort using tools like Postman , Swagger More ❯