# Front-end Developer

> COSMOTE GLOBAL SOLUTIONS NV · Brussels, Belgium · Contract · Posted 2026-05-08

**Workplace:** on_site

## Description

**COSMOTE Global Solutions NV**, part of the **OTE Group of Companies**, is a leading ICT Systems Integrator offering a comprehensive range of ICT solutions and services. We are dedicated to delivering innovative technology solutions that empower businesses to succeed.

We are seeking a highly skilled and motivated **Front-end Developer** to join our talented team. In this role, you will be responsible for developing user-facing features, ensuring the technical feasibility of UI/UX designs, and optimizing applications for maximum speed and scalability.

**Key Responsibilities:**

-   Develop new user-facing features and build reusable code and libraries for future use.
-   Ensure the technical feasibility of UI/UX designs.
-   Optimize applications for maximum speed and scalability.
-   Collaborate closely with back-end developers and web designers to improve usability.
-   Maintain and improve website and application performance.
-   Implement responsive design to ensure compatibility across devices.
-   Participate in code reviews and contribute to team knowledge sharing.
-   Write and maintain technical documentation.

## Requirements

-   Bachelor’s degree in Computer Science or related field.
-   Minimum 8 years of experience in front-end development.
-   Strong proficiency in JavaScript, HTML5, and CSS3.
-   Experience with modern front-end frameworks/libraries such as React, Angular, or Vue.js.
-   Familiarity with RESTful APIs and asynchronous request handling.
-   Knowledge of browser rendering behavior and performance optimization techniques.
-   Experience with version control systems, preferably Git.
-   Understanding of responsive design principles and mobile-first development.
-   Good problem-solving skills and attention to detail.
-   Ability to work well in a team environment and communicate effectively.
-   Fluent in English.

## Apply

[Apply at COSMOTE GLOBAL SOLUTIONS NV](https://apply.workable.com/cosmote-global-solutions-nv/j/1C17757C75/apply)

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