Senior Front-End Engineer - OnTheMarket Technology, London

New Today

RESPONSIBILITIES

  • Develop and maintain user-facing features using React, Redux and Next.js.

  • Build reusable components and front-end libraries.

  • Optimise applications for maximum speed and scalability.

  • Working with the CTO Collaborate with the Head of UX to ensure the technical feasibility of their designs.

  • JS application reliability including; incident management, performance tuning, monitoring & deployment.

  • Full workflow with testing frontend applications (unit, integration, or E2E) and advanced Git version control.

  • QUALIFICATIONS

  • Bachelor’s degree in Computer Science, Mathematics, Engineering or equivalent experience

  • Strong 4+ years commercial experience with JavaScript (ES6/ES7+)

  • Commercial experience with React and Redux.

  • Proficient with React features such as hooks, pure components, error handling, HOCs, and lazy loading and hands-on experience with Next.js and Server-Side Rendering (SSR)

  • Experience integrating and working with APIs, including the fetch() API

  • Solid understanding of HTTP, semantic HTML, accessibility, and responsive web design across various browsers and devices

  • Strong CSS skills, including Tailwind, Flexbox, Grid, and modern web layout techniques

  • Performance-minded, with experience optimizing rendering, load times, and tracking key metrics like Core Web Vitals using tools such as Lighthouse

  • A good grasp of software design principles

  • NICE TO HAVE

  • A good eye for design and attention to UI/UX details

  • Familiarity with CI/CD pipelines, particularly Jenkins

  • Experience in applying general SEO concepts

  • Experience with AWS is a plus

  • Experience working with the Google Maps API, data visualisations and creating clean, simple and compatible email templates

  • Familiarity with TypeScript

  • WHAT’S IN IT FOR YOU?

    Working at CoStar Group means you'll enjoy a culture of collaboration and innovation that attracts the best and brightest across a broad range of disciplines. As well as having an outstanding working environment based in London Blue Fin. Other perks include full private medical cover, dental cover, Life Assurance and member rewards, 28 days annual leave, a competitive pension, season ticket loans, enhanced maternity and paternity pay and much more!

    Location:
    London
    Job Type:
    FullTime