javascript English-speaking jobs in Ottignies-Louvain-la-Neuve

Welcome to Rayference Rayference is a Brussels-based SME active in research and development for radiative transfer modelling, satellite data processing and advanced retrieval algorithm development based on inverse modelling.

Your tasks: Design and program new applications while modifying existing software; Conduct testing and documentation of programs to ensure continuous delivery of high-performance applications; Create a low-level design based on an architectural document; Guide the development team in implementing the design, promoting the reuse of previously developed solutions; Encourage adherence to company stan

NVISO is a pure-play cyber security consulting firm: our team is composed of security professionals who each have their specific field of expertise, ranging from Information Security Governance, Risk & Compliance to Incident Response, Penetration Testing, CSIRT/SOC, Software Security, and Training & Awareness.

The NATO Communications and Information Agency (NCIA) is seeking a highly skilled and cleared Zabbix Systems Monitoring Engineer to join the Service Management and Control (SMC) team within the Coherence Branch in Brussels.

Job Title: Freelance Odoo Accountant Location: Ghent (Belgium) Contract Type: Freelance, Full-time (Initial contract period of 3 months, with potential for extension) Start Date: January The ideal candidate will be an Odoo expert with a strong background in accounting.

Role Overview Our banking client in Brussels is seeking a Freelance Business Data Analyst to support their Current Account team. The role focuses on creating dashboards, generating insights, and analyzing gaps in product usage to improve forecasting and prevent overshooting. Key Responsibilities Develop and maintain dashboards using Cognos. Utilize Adobe tools for reporting and analysis.

Purpose of the position The Regional Business Director is responsible for driving growth and profitability across several key European markets (Belgium, Netherlands, Luxembourg).

Senior React Developer - Freelance (Senior) Start: ASAP Location: Hybrid (Belgium) Type: Freelance - Long-term mission About the role We are currently looking for an experienced React Developer with a strong focus on front-end engineering.

Senior Project Manager / Team Leader Job Overview: Lead an internal development team in a large digital transformation initiative, overseeing end-to-end IT delivery, service management and team development using Agile and other methodologies. " Key Responsibilities: Manage the entire project lifecycle from requirement gathering to production deployment.

Network Implementation Architect Expected start date: Q1 2026 Duration: quarterly renewable- long duration B2B contract Work setup: Hybrid Brussels- minimum 50% on-site Position Summary We are seeking a seasoned, hands-on Network Infrastructure Architect to design and implement modern network infrastructure as part of our ongoing transformation.

Spektrum have a wide range of exciting opportunities in several global locations. We are always looking to add great new talent to our team and look forward to hearing from you. Spektrum supports apex purchasers (NATO, UN, EU, and National Government and Defence) and their Tier 1 supplier ecosystem with a wide range of specialist services.

Description du poste About BESIX Plant & Equipment The BESIX Plant & Equipment department manages, maintains, and repairs a large fleet of capital equipment for civil construction projects, as well as a wide range of foundation machines.

We are looking for two Scrum Masters for our client active in HR services and payroll management and who will implement Agile principles within development teams, fostering an environment that supports collaboration, continuous improvement, and high-quality delivery. The Scrum Master's mandate is to guide teams through the Scrum framework, acting as a servant leader and facilitator.

OUR MISSION & IMPACT At Wise. Energy, everything we do we do it for one purpose: energy decarbonation accessible & profitable for all companies. We believe that to enable a true energy transition, it needs to be inclusive and accessible for all. This is why we always offer our solutions in a triple-win model, where decarbonation rhymes with profitability and energy optimization.

ECO3 is a leading global supplier of prepress systems to the printing industry. Commercial, newspaper and packaging printers rely on us for the most extensive range of integrated solutions, from printing plates and computer-to-plate systems over workflow and print management software to pressroom chemicals.

Looking to start a new challenge as a freelancer? Get in touch now. What you will do Federate, improve and govern end-to-end IT processes (ITIL v4 based). Define standards, workflows, KPIs and governance models across IT domains. Lead process harmonisation initiatives across architecture, development, integration and operations teams.

Join a forward-thinking team and shape the backbone of software solutions that drive innovation. As a Linux System Engineer, you will ensure the reliability, scalability, and security of the infrastructure powering cutting-edge software products. You'll collaborate closely with development and operations teams to deliver seamless experiences for clients and end-users worldwide.

Experience Required Minimum 6 years of hands-on Android development experience Strong mastery of Kotlin, Jetpack Compose, and Material 3 Deep understanding of Android SDK, Google design principles, UI/UX guidelines, and clean code practices Ability to write readable, maintainable code with effective refactoring Practical experience with TDD, unit testing, edge-case handling, and reliability testin

Join a dynamic I&O team managing operational databases that power critical IT applications! This is a hands-on role combining production support, data governance, cloud migration, and automation.

As a Junior Sales Support at our client, you will be in charge of the following responsibilities: Ensure customer satisfaction by managing administrative requests with timely and accurate responses. Execute administrative export procedures. Arrange client visits (transfers, samples, meals, internal communication, etc. ).