frontend developer English-speaking jobs in Châtelet

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.

AI Trainer/Data scientist Location: Brussels Are you passionate about teaching, sharing knowledge, and helping others grow in the world of Data & AI? We are looking for an AI Trainer to guide students and professionals as they develop practical, industry-ready skills. What You Will Do Deliver training in Data Science, Machine Learning, Data Engineering, and Generative AI.

Freelance Senior Project Manager (Financial/Banking Sector) Location: Brussels Contract Type: Freelance Experience Level: Senior About the Role We are seeking an experienced Senior Project Manager with a strong background in the financial and banking sector to lead complex, high-stakes projects in a fast-paced environment.

The role requires warmth, patience, organisational skills, and a strong commitment to safeguarding, along with the ability to build positive relationships with pupils, staff, and parents. The successful applicant will: Supervise and care for primary-aged pupils during the after-school period. Provide a safe, positive and engaging environment for all children.

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.

Company DescriptionMediport is a multidisciplinary center specializing in preventive healthcare with a focus on patient-centered care and exceptional service. The center is an innovative concept designed for the future of healthcare, located at Binnenvaartstraat 95, 2000 Antwerp, Belgium.

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

What we’re looking for We are a leading international provider of classification, compliance, and consultancy services to the marine and offshore industry, helping our customers design, construct and operate their assets to the highest levels of safety and performance.

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.

Context and purpose: As part of its international activities and in order to respond to a call for tenders, PEPPS (Belgian digital company) wishes to engage the services of a partner (freelance expert or specialized consulting firm) specialized in the development of databases and data analysis digital platforms related to the scope of EFSA's intervention (Food and feed safety, Nutrition, Plant

Senior System Administrator The Senior System Administrator will be responsible for the end-to-end technical lifecycle of Genetec Security Center systems and related integrated technologies. Key Responsibilities Install, configure and maintain Genetec Security Center systems (video surveillance, access control, ANPR, intercom, etc. ).

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.

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.

The Data Integrator is responsible for the development of the physical data models designed to improve efficiency and outputs, of the Data Vault and Data Marts, of the Operational Data Store (ODS), and of the Data Lakes on the target platforms (SQL/NoSQL).

As Key Account Manager – Fleet & Mobility Solutions, you will manage key business mobility customers in Belgium, operating at the forefront of the energy transition. In this fast-evolving market, you will drive commercial growth, foster innovation, and ensure customer success by helping businesses optimize their fleets, reduce emissions, and navigate complex mobility challenges.

The Director, Medical Information & Content Approval, Vaccines plays a critical role in managing a team that ensures the US and global promotional and non-promotional content meets the highest standards of quality, scientific accuracy, balance, and compliance that meets the scientific needs of customers to help inform clinical care and formulary access decisions.

About Falk & Ross Falk & Ross is one of Europe's leading textile wholesalers for promotional wear, merchandise, and workwear. Our mission is to deliver quality, service, and reliability, enabling our partners to present their brands in the best possible way. With a strong international network, modern logistics, and a dedicated team, we are shaping the future of the textile industry.

Internship description D'Ieteren Group is looking for a top-performing master student for a 6 months internship to be part of the investment team as from March 2026 in it's headquarters located in Brussels. The investment team is responsible for sourcing and analysing prospective investment opportunities, deal execution as well as monitoring the development of portfolio companies.

Operations Manager-Antwerp-Learning & Development Company -Strategic Impact Are you looking for a role thanks to which you can impact society in a meaningful way? Are you eager to start a job with high autonomy and responsibility over a full PNL? Would you like to run the whole operations for Flanders for a Belgian scale up? Would you like to lead and manage a small team of staff?

Job Title: SAP Finance & Tax Integration Consultant Location: Belgium – Remote with occasional visits to client sites Job Overview: Our client is seeking a highly experienced SAP Finance & Tax Integration Consultant with strong expertise in SAP FI and related integrations.