javascript English-speaking jobs in Nivelles

This leadership role combines scientific expertise with operational responsibility. The CTO will lead the technical organization end-to-end, including materials R&D, testing, validation, industrialization, and technical partnerships. The CTO will translate the material platform into qualified, approved, and market-ready products, starting with bike tyre manufacturers and distributors.

Develop and execute brand plans for a portfolio of brands across Benelux, ensuring strong brand positioning and performance. Lead marketing budget planning, campaign activations, and digital strategy. Track marketing KPIs, analyze performance, and report to leadership.

iOS Developer with 8+ years of experience in Swift, SwiftUI, and UIKit. Develop, maintain, and evolve mobile apps with seamless backend integration. Ensure security, performance, and stability in every release.

Operations Manager needed for growing Energy team. Manage the full lifecycle of changes, evaluate risks and impacts, and ensure alignment with project schedules. Coordinate with engineering teams, contractors, and stakeholders. Bachelor's or Master's degree in a related field and 5+ years of experience in construction, infrastructure, or EPC projects required.

Experienced Commissioning Manager needed for electrical commissioning of a new hyperscale data center. Lead L1-L5 electrical commissioning across HV/LV infrastructure, including transformers, switchgear, distribution, UPS, and associated systems.

Driven florist to manage floral presence at a luxury boutique & hotel in Brussels. Responsibilities include designing, installing, and maintaining floral displays, leading client consultations, and managing stock. Must have strong expertise in fresh flowers and flower care, fluency in English, and be physically capable of handling installations.

Senior Buyer Technical Goods & Services will source technical goods, parts, components, equipment & services, analyze market trends, and negotiate contracts. You will collaborate with internal stakeholders, manage contracts, and prepare procurement reports.

Content Intern will support the Content Manager in creating and optimizing content for social media, website, newsletters, and campaigns. Responsibilities include creating visual content, writing copy, assisting with photoshoots, and managing email marketing.

Business Analyst SAP for strategic and operational projects in Life Sciences. Analyze business processes, support SAP implementations, and translate requirements into functional specifications.

Experienced SAP Project Manager to lead strategic initiatives focused on SAP DRC (PEPPOL e-invoicing compliance) and API integration projects on SAP BTP. Manage full project lifecycle, ensure compliance, and coordinate cross-functional teams.

The Key Account Manager drives revenue growth and profitability for key accounts by managing existing relationships and generating new business opportunities with airlines and logistics partners.

Remote contract for PhDs in Physics, Applied Physics, or related fields. Design physics problems to test AI performance, evaluate AI outputs, and collaborate with researchers to refine benchmarks.

Business consultant supporting insurance companies in operational excellence by transforming operating models, designing processes, and developing technology strategies.

Leads the Cloud Center of Excellence, sets strategic direction for the global Azure Cloud platform, and ensures secure, scalable operations. Manages vendor relationships, drives cloud adoption, and translates technical capabilities into business value.

Leads EMEA marketing, communications, and commercial support for sustainability initiatives. Develops and executes campaigns, content, and messaging aligned with corporate priorities. Supports customer-facing teams with sustainability materials and training. Ensures alignment with the global Corporate Sustainability Framework.

The Functional/Technical Analyst will gather and analyze business and technical requirements, map processes, and define integration specifications. This role requires strong analytical skills, understanding of data flows, middleware, and enterprise system interactions. The ideal candidate will translate stakeholder needs into structured documentation and collaborate with technical teams to ensure alignment between business needs and system capabilities.

Performance Attribution Specialist to support BAU activities and reporting transformation initiatives. Responsibilities include ensuring timely production of performance attribution reports, monitoring portfolio performance, and identifying performance discrepancies.

Experienced IT Domain Architect needed for freelance projects. Responsibilities include developing security project plans, managing security teams, and ensuring security solutions comply with standards. Must have experience in architecture leadership, agile methodologies, solution design, technology strategy, security and compliance, cloud and infrastructure architecture, data architecture, DevOps, and stakeholder collaboration. Strong communication and presentation skills are required. Bachelor's or Master's degree in Computer Science or equivalent experience is necessary.

Mid-Level Invoicing & Customer Service Specialist needed for short-term contract. Manage invoices, handle billing inquiries, and provide customer support. Requires proven invoicing experience, strong communication skills, and fluency in English.

Service & start-up engineer for HVAC automation, providing after-sales service, preventive maintenance, and troubleshooting. Collaborates with internal teams, customers, and project managers. Requires expertise in HVAC commissioning and control, low voltage domain, and IT domains.