Frontend Engineer – React, Next.js, TypeScript

About the role

Exein is looking for a Frontend Engineer to create secure, high‑performance web applications that power real‑time threat telemetry and mission‑critical security workflows. You will work with a multidisciplinary team to deliver intuitive, responsive user interfaces while shaping the architecture of a scalable platform.

Key responsibilities

• Design and implement 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.
• Optimize performance using Next.js server‑side rendering strategies and reduce Time to Interactive for data‑heavy dashboards.
• Collaborate closely with designers, backend engineers, and product owners to translate requirements into reliable user experiences.

Required profile

• 3–5 years of professional experience with React, Next.js, and TypeScript.
• Experience in deep‑tech or cybersecurity contexts is strongly preferred.
• Proficiency with AI‑assisted development tools (e.g., Cursor, Claude) and solid prompt‑engineering skills.
• Ability to identify and correct AI‑generated hallucinations or insecure code.

Required skills

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

What we offer

• Opportunity to build technology that protects organizations from real‑world cyber threats.
• Modern development environment that embraces AI tools to boost productivity.
• Collaboration with experienced engineers, security specialists, and product leaders.