react English-speaking jobs in Lummen

Senior AI & NLP Engineer develops and maintains software in NLP, ML, and AI. Responsibilities include training models, optimizing classifiers, and improving machine translation engines. Requires 9+ years of IT experience and fluency in English.

Freelance Analyst/Product Owner needed for Oracle ERP Cloud Finance. Manage functional backlog for AP and AR, collect requirements, and coordinate delivery between finance users and technical contractors. Requires 7+ years of experience.

HSE Manager needed to supervise electrical installation construction sites. Must possess HSE certifications and qualifications like RSPP/ASPP. Responsibilities include implementing HSE plans, managing training, and ensuring regulatory compliance.

Change Management Expert to support a strategic transformation in absenteeism management, attendance at work, and employee well-being. Requires expert-level experience in Change Management, HR Transformation, and Social Dialogue.

Senior SAP IS-U Functional Analyst needed for a utilities initiative. Requires 10+ years of experience in SAP IS-U Billing & Invoicing, deep knowledge of the Belgian utilities market, and trilingual proficiency in English, Dutch, and French.

Siemens is seeking a Business Developer – Medium Voltage to promote and sell a portfolio of technical products and services related to energy transmission and distribution. Responsibilities include identifying and acquiring new clients, managing existing client relationships, developing technical quotes, and collaborating with internal departments. The ideal candidate will have a relevant technical degree, previous experience in a technical-commercial role, and strong client focus.

Easy Acquiring Agent handles non-face-to-face sales by following up on commercial leads via calls and email. Requires strong negotiation skills, a commercial mindset, and fluency in French with Dutch knowledge.

Data Scientist for Weather & Short-Term Power translates weather forecasts into actionable trading signals for power markets. Requires strong Python, ML skills, and knowledge of weather data.

Experienced Medical Science Liaison (MSL) sought for a field-based role across Belgium, Netherlands, and Luxembourg. The MSL will build relationships with healthcare professionals, communicate scientific information, and contribute to Medical Affairs strategies. Requires a Master's degree in a relevant field, 5+ years of industry experience, and fluency in Dutch, French, and English.

Senior Functional Analyst for a large-scale data migration program. This role bridges business and IT by translating migration requirements into functional solutions, defining data mappings, and performing data analysis using SQL. Requires 5+ years of experience and fluency in Dutch and English.

Business & Data Analyst supporting international distribution and e-commerce growth. Translate commercial data into insights, build reports/dashboards, and optimize processes using tools like Power BI and Excel.

Finance Associate will work on Belgian and international banking, finance, and debt capital markets matters including debt finance, debt capital markets transactions, and structured finance.

Supervises warehouse operations, develops strategic plans, and optimizes processes to align with corporate goals. Manages team development, resource allocation, and risk mitigation. Requires strong analytical, communication, and leadership skills.

Senior Software Engineer to design and develop high-performance visualization platforms. Responsibilities include building dynamic UIs, integrating front-end/back-end logic, and maintaining scalable solutions. Requires IT/CS degree and strong Linux knowledge.

Manager/Senior Manager, EU Government Relations monitors EU legislative developments and manages company policy positions across European markets. This role involves stakeholder engagement, advocacy, and collaboration with internal teams.

Backend Software Engineer specializing in Typescript/Node.js for a SaaS start-up. Requires 3+ years of hands-on development experience and an IT-related degree. Must be based in Belgium.

Front Office Manager to lead and oversee the front office department operations. Responsibilities include managing staff, reservations, billing, guest services, and revenue management. Requires 5+ years of hotel reception experience, fluency in English, Spanish, and French.

Senior Business Analyst for a national railway infrastructure organization. This role involves gathering and translating business needs into functional specifications for digital transformation in rail freight and port logistics within an Agile environment.

Senior Software Engineer to develop the core pricing manager system, building end-to-end features. Requires deep backend experience in Go or Python, frontend literacy, and architectural thinking.

Project Management Data / IT Consultant role requires 5+ years of PM experience and a Master's degree. Must be fluent in English, French, and Dutch, with experience leading data platform migrations and understanding IT/OT infrastructure.