Senior Frontend Engineer (React 19 15)

Budapest - Hungary

Monthly Salary: Not Disclosed

Posted on: 30+ days ago

Vacancies: 1 Vacancy

The job posting is outdated and position may be filled

Job Summary

An international cybersecurity and telco security firm is seeking a Senior Frontend Engineer to drive the development of real-time dashboards used to monitor and control thousands of connected devices. The role is based in Budapest with a hybrid model (23 days onsite).

Description

You will design and deliver high-performance user interfaces using React 19 and 15s App Router. This includes building data-dense charts tables and visualizations ensuring optimal performance and maintaining design consistency. You will collaborate closely with backend engineers to shape API contracts and ensure smooth real-time data streaming.

Requirements

5 years in modern frontend development; 3 with React
Production experience with (App Router)
Strong TypeScript and state management experience (Zustand/Redux/RxJS)
Skilled in WebSockets/SSE for real-time data
Proficiency with TailwindCSS or similar
Strong testing background (unit/e2e automation)
Excellent English communication skills
Nice to have: Experience with D3/WebGL GraphQL subscriptions or offline-first apps.

Benefits

Flexible hybrid work with core hours (10:0016:00)
Choice of personal laptop
Private health insurance and cafeteria package
Work in a small senior team with low bureaucracy and high impact

An international cybersecurity and telco security firm is seeking a Senior Frontend Engineer to drive the development of real-time dashboards used to monitor and control thousands of connected devices. The role is based in Budapest with a hybrid model (23 days onsite).Description You will design and...