Frontend Engineer – React, Next.js, TypeScript

About the role

We are looking for a Frontend Engineer to develop secure, high-performance web applications for Exein’s cybersecurity platform. You will create modern, responsive user interfaces using React, Next.js and TypeScript, supporting real-time threat telemetry and mission-critical workflows.

Key responsibilities

• Design and implement scalable, modular frontend architectures for complex data visualisations and multi-tenant security environments.
• Develop and maintain an accessible, reusable UI component library to ensure visual consistency across the platform.
• Optimise performance, including Next.js server-side rendering strategies and reducing Time to Interactive for data-heavy dashboards.

Required profile

• 3–5 years of professional experience with React, Next.js and TypeScript.
• Background in deep-tech or cybersecurity companies is strongly preferred.
• Proficient in using AI-assisted development tools (e.g., Cursor, Claude) and skilled in prompt engineering.
• Ability to identify and correct AI-generated hallucinations or insecure code.

Required skills

• React
• Next.js
• TypeScript
• AI development tools (Cursor, Claude)
• Prompt engineering

What we offer

• Opportunity to build technology that protects organisations from real-world cyber threats.
• Modern development environment that embraces AI tools to boost productivity.
• Collaboration with experienced engineers, security specialists and product leaders.
• Impactful role in a fast-growing cybersecurity scale-up where your ideas drive innovation.