Frontend Engineer in London

Frontend Engineer in London

London Full-Time 87500 - 87500 £ / year (est.) No working from home possible
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At a Glance

  • Tasks: Own the frontend stack and create amazing user experiences for an AI security platform.
  • Company: Join a pioneering AI security start-up with a dynamic and innovative culture.
  • Benefits: Competitive salary, stock options, wellness budget, and fun monthly socials.
  • Other info: Perfect for those who thrive in fast-paced, early-stage startup environments.
  • Why this job: Be a founding engineer and shape the future of cutting-edge security technology.
  • Qualifications: Strong frontend development skills, especially in JavaScript, TypeScript, and React.

The predicted salary is between 87500 - 87500 £ per year.

We're recruiting for a leading AI security start-up who are building an adaptive security layer designed to detect and respond to evolving threats in real time. As a Founding Frontend Engineer, you'll be responsible for developing, maintaining, and scaling their user portal - the first thing customers see when engaging with their product. You'll also be crafting the principles and values the organisation upholds when doing frontend engineering now, and into the future. This is an opportunity to take complete ownership over their frontend stack, work with an incredible team of talented engineers, and to help build the future of their core offering.

Your Responsibilities

  • Owning the full frontend surface from design system foundations to performance to deployment.
  • Translating UI/UX designs into clean, efficient, and maintainable code.
  • Developing accessible and high-performing user interfaces across devices.
  • Optimising application performance and ensuring cross-browser compatibility.
  • Identifying, troubleshooting, and resolving front-end issues efficiently.
  • Decision making on authentication strategies and secure session/token approaches (e.g. JWT/JWE, token rotation).
  • Collaboration with designers, developers, and stakeholders to deliver seamless digital experiences.
  • Enforcing and maintaining best practices in frontend development, including code quality, testing, and performance optimisation.

You Should Have

  • Strong commercial experience as a front end developer, delivering production Web applications.
  • Excellent JavaScript and TypeScript skills, with strong experience building UI with React.
  • Solid HTML5 and CSS skills, including building responsive interfaces that work well across devices and browsers.
  • Experience working with modern Web application patterns, including server-side rendering (or similar techniques) and performance-minded UI delivery.
  • Experience building enterprise scalable applications against REST APIs.
  • Familiarity with common architectural patterns and building maintainable component-based applications.

It Would Be Nice If You Have

  • Worked in an early-stage startup before and know what it feels like when there's no playbook.
  • Used AI coding tools and know how to get leverage from them without losing control of the codebase.
  • Built something data-heavy (dashboards, tables, real-time updates) and know where the performance traps are.

Benefits

  • £80,000 - £90,000 Base Salary
  • Employee Matched Pension Plan
  • Stock Option Package
  • Wellness Budget
  • Monthly Socials
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Contact Details:

Hyre AI Limited Recruitment Team

We think you need these skills to ace Frontend Engineer in London

Frontend Development
JavaScript
TypeScript
React
HTML5
CSS
Responsive Design