Front End Engineer

Ravelin
London


Who are we?


Hi! We are Ravelin! We're a fraud detection company using advanced machine learning and network analysis technology to solve big problems. Our goal is to make online transactions safer and help our clients feel confident serving their customers.


And we have fun in the meantime! We are a friendly bunch and pride ourselves in having a strong culture and adhering to our values of empathy, ambition, unity and integrity. We really value work/life balance and we embrace a flat hierarchy structure company-wide. Join us and you’ll learn fast about cutting-edge tech and work with some of the brightest and nicest people around - check out our Glassdoor reviews.


If this sounds like your cup of tea, we would love to hear from you! For more information check out our blog to see if you would like to help us prevent crime and protect the world's biggest online businesses.


Role Description


We are looking for a talented front-end engineer to help build our growing fraud technology platform. In this role, you’ll play a key part in crafting the client-side of our web applications, transforming complex company and customer needs into sleek, user-friendly experiences.


Our codebase is built with React hooks and TypeScript, and is supported by a modern development ecosystem. As part of our engineering team, you'll be working on high-volume applications that directly impact how we detect and prevent payment fraud on a massive scale. This means you’ll have the opportunity to collaborate with a diverse team of talented engineers, designers, and product managers to create intuitive and scalable solutions.

Key Responsibilities

Design and implement intuitive, scalable, and responsive user interfaces for our fraud detection products

  • Work closely with engineers, designers, and product managers to translate business requirements into high-quality, functional applications
  • Write efficient, maintainable code that performs well under heavy load
  • Participate in code reviews, testing, and the continuous improvement of our internal development standards and best practices.
  • Continuously learn, grow, and adopt new technologies to keep our applications at the cutting edge

Skills, Knowledge and Expertise

  • 2+ years' work experience as a front-end engineer
  • Working experience with JavaScript/TypeScript and at least one modern JavaScript framework (React, Angular, Vue), HTML, CSS, Git, and APIs is essential
  • Familiarity with browser testing and debugging
  • Experience writing unit and integration tests
  • An understanding of layout aesthetics and user experience principles
  • An ability to perform well in a fast-paced environment
  • Excellent analytical and multitasking skills


Nice to haves

  • An understanding of the entire web development process (design, development and deployment)
  • Experience with React and TypeScript
Posted 2026-11-09

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