Senior React Engineer — Scale Frontend & Design Systems

Whale BV; Oost-Vlaanderen; Hybrid; EUR 75,000 - 105,000; Full time

Benefits offered by this job

Health coverage

All the tech tools you need

Free soup on Wednesdays

Flexible working hours & hybrid remote

Caring team

Job summary

Whale is looking for a senior frontend engineer to join our hybrid Belgium-based team. You’ll build complex web apps using React.js and TypeScript, work with Redux Toolkit, and collaborate closely with backend and product teams to turn requirements into high-quality features.

You’ll contribute to scalable front-end architecture, care about design systems, and ship with CI/CD; fluency in Dutch and English is essential. Nice-to-have Docker and coaching experience.

Qualifications

• Have proven experience (+5 yrs) building complex web applications.
• Choose React.js as your go-to framework.
• Know all the ins and outs, quirks and perks of JavaScript and ES6.
• Have solid experience with different state management libraries (eg. Redux Toolkit).
• Are proficient using Git.
• Are passionate about TypeScript.
• Care about responsive and atomic design, and understand design systems.
• Have experience scaling front-end architecture.
• Have a strong eye for detail and design.
• Are fluent in Dutch and English.

Responsibilities

• Turn product requirements and UI designs into high-quality features with backend & product teams.
• Develop, test and debug frontend applications while growing the codebase maintainably.

Skills

React.js

JavaScript/ES6

Redux Toolkit

Git

TypeScript

Front-end architecture

Design systems

Dutch language

English language

5+ years experience

Tools

Docker

Job description

Whale is looking for a senior frontend engineer to join our hybrid Belgium-based team. You’ll build complex web apps using React.js and TypeScript, work with Redux Toolkit, and collaborate closely with backend and product teams to turn requirements into high-quality features.

You’ll contribute to scalable front-end architecture, care about design systems, and ship with CI/CD; fluency in Dutch and English is essential. Nice-to-have Docker and coaching experience.