67 frontend developer English-speaking jobs in Brussels

Lead Developer (Backstage) – Energy Sector – Brussels – Freelance / CDI Full‑time Join a high‑impact ... Within this context, the service contributes to the evolution and operational excellence of an internal developer ... European energy landscape is undergoing significant transformation, requiring scalable, secure, and developer‑friendly ... Design & Development Design, development, testing, and documentation of custom Backstage plugins (frontend ... preferably for platforms or integration‑heavy environments At least 3 years of experience developing frontend

and implement new net‐zero features across a Python backend , SQL database , and JavaScript/Next.js frontend ... Freelance: Software Developer (Python, SQL, JavaScript, Next.js)Location: Leuven, Belgium (3 days onsite ... month freelance contract with likely extensions We're looking for an experienced Freelance Software Developer

Frontend Software EngineerMost frontend roles talk about impact. ... If you are someone who enjoys building scalable, high-quality frontend systems and wants to work in an ... , component-based architectures Integrate frontend applications with backend services and APIs Ensure ... Initially, the focus will be on improving automation across frontend workflows, reducing manual processes ... Responsibilities Design and develop high-quality frontend features using modern frameworks Build scalable

Spring / Spring Boot / Spring Batch Hibernate RabbitMQ Oracle / PostgreSQL XML JUnit / Selenium Frontend

We are seeking a motivated C# Developer to design and build forward-thinking software solutions, often ... Familiarity with AI technologies (LLMs, embeddings, vector databases) and Blazor frontend framework is

provide a collaborative environment for innovation across industries including cloud, edge, AI, and developer ... This role offers exposure to large-scale open source systems, modern backend and frontend technologies ... Experience with TypeScript and React, or another modern frontend framework with a willingness to learn

You will work across the stack—Python backend, SQL databases, and JavaScript/Next.js frontend—collaborating ... and maintain Python backend logic and APIs Design and manage SQL database structures Build and refine frontend

development 6+ years in Java web development, including Spring Framework and REST APIs 3+ years in frontend

We're looking for a Senior Java Backend Developer to work on cutting-edge backend systems with a focus

specific expertise is mandatory for the performance of tasks: • Experience of five years as a full-stack developer

Senior BPM-Java Developer at European CommissionEuropean Commission | Brussels, BE | up to 11k/monthEuropean ... Commission has an open position for Senior BPM-Java Developer, requiring Java, Camunda, Spring, Kafka ... the needs of the European Commission.DIGIT.B.3 wishes to obtain the expertise of a Senior BPM-Java Developer

5 days/week) About the Role We are currently seeking a motivated Business Analyst & Power Platform Developer

Fujitsu is looking for a Full Stack Developer to work on a project within the EU Institutions , in Brussels

Job description Daily rate: - Technical Avaloq Analyst / Developer Location: Brussels Employment ... Type: freelance or Contract Role Overview We are seeking a skilled Technical Analyst / Developer with

development experience with Java Spring and REST API development); Minimum 3 years of experience in frontend

ACENSI is looking for a Medior .NET Developer - Electricity Markets for one of their clients based in ... the Energy Sector in Brussels : We're looking for a highly skilled .NET Developer (minimum 5 years of ... problem-solver who enjoys technical challenges · Someone who values teamwork and clear communication · A developer

We are looking for a talented Back-end Developer to enhance our team. ... Integration of user-facing elements developed by a front-end developer with server side logic. ... As a Back-end Developer, you will play a critical role in designing scalable applications to meet the

Java Developer - Brussels Start Date: June 2026 Duration: 12 months (with potential extensions) Location ... technical and business needs Your profile MUST-have skills & experience: 5 years experience as a Java Developer

Back-End Developer, Brussels (near-site) – European Commission   Profile: Back-End developer with expertise ... DESCRIPTION: We are seeking an experienced Back-End Developer to contribute to the design, development ... back-end website applications. ·       Integration of user-facing elements developed by a front-end developer

ProfielWho You Are:A developer with min 5+ years in web development. ... FunctieomschrijvingWe’re seeking a versatile full-stack developer, preferably with a strong backend focus