react English-speaking jobs in Lummen

Ciena, a global leader in high-speed connectivity, seeks curious and collaborative individuals for future opportunities across technical, professional, and leadership roles.

Business Development Executive to generate leads, support the sales cycle, and build client relationships. Requires 0-2 years experience, fluency in French and English, and interest in Salesforce projects.

Microsoft Technology Development Specialist to advise customers and partners on licensing programs, support onboarding, and shape joint business plans. Requires proven experience in the Microsoft ecosystem, strong knowledge of Microsoft licensing, and fluency in Dutch and French.

Drive the execution of Aliaxis' Horizon 2030 ambition by defining enterprise strategy and supporting divisions in building local strategies. Lead strategic reviews, manage M&A, and provide market intelligence to the Executive Committee and Board. Coordinate the corporate strategy team and deliver high-impact strategic projects.

This role is essential to our technical pricing and portfolio management functions. You will utilize advanced statistical and predictive modelling techniques to support tariff development and conduct profitability analyses. You will extract insights from data to sharpen our market position and drive financial resilience.

Business Analyst to draft, document, and review business requirements. Experience in functional analysis, labor market, or verifiable credentials preferred. Strong communication and presentation skills required.

Account Manager (M/F/X) manages and grows a portfolio of key accounts in the banking & financial services sector. Builds and maintains client relationships, delivers tailored solutions, and identifies new business opportunities. Requires fluency in English, French, and Dutch, and a background in business or financial services.

Junior Designer to support infrastructural projects. Responsibilities include adapting standard drawings, collaborating with engineers and technicians, and solving design and construction phase problems. Requires a technical qualification and strong communication skills.

Java Developer Consultant to design, develop, and maintain high-performance applications using Spring Boot and related technologies. Collaborate with a team to deliver customer value and code quality. Must have 8+ years of Java development experience and strong understanding of software design patterns. Fluent in Dutch, French, and English.

As a (Senior) Manager Estate Planning, you will provide comprehensive estate planning solutions to high net worth individuals and family-owned businesses. You will offer legal and tax advice on family, business, and wealth matters, requiring a Master in Law and minimum 6 years of experience in relevant areas. Fluency in Dutch and English is essential.

The CRM Instore Manager consolidates customer data, provides information to store staff, and supports managers in implementing CRM projects. Responsibilities include ensuring data accuracy, analyzing Client Advisor performance, launching new CRM systems, and conducting CRM training. The ideal candidate has strong retail experience, a proven track record of client development, and proficiency in IT/digital tools.

Leads global Cyber Exposure Management/Cyber Engineering & Architecture, driving modernization of cyber defense capabilities and shaping long-term security architecture strategy.

Client Manager for European-headquartered NGOs and Government Organizations. Manages client accounts, builds relationships, and provides consultative guidance. Requires experience in Employee Benefits, Financial Services, or Consulting, preferably with international NGO/Government clients.

Provide customer support via phone and email regarding orders, product availability, shipments, payments, and product issues. Plan and execute sales activities, monitor stock levels, and enter data into IT systems.

Senior ICT Project Management Supervisor to coordinate operational ICT processes, projects, and team activities. Lead, coach, and support internal and external ICT team members. Manage operational planning, priorities, budgets, and reporting.

QC Technical Expert responsible for qualification of analytical equipment, method transfers, and analytical testing coordination. Supports team leader on day-to-day testing operations, data review, and investigation support. Drives process improvements and provides technical training. Requires a Bachelor's Degree in a science-related field and 4-6 years of experience in the biopharmaceutical or pharmaceutical industry.

Leads organization design and operating model development, translating business strategy into structures and frameworks. Analyzes data to identify optimization opportunities and provides strategic insights to support workforce alignment. Builds OD capability across HR and business leadership through training and coaching.

Senior Clinical Research Associate to monitor data integrity, quality, and compliance with ICH GCP and local requirements at the site level. Experience in oncology trials and RECIST criteria is essential. Responsibilities include conducting monitoring activities, verifying source documents, managing protocol deviations, and ensuring site compliance. Requires a Bachelor's degree or equivalent experience, proficiency in the local language, and advanced English fluency.

Lead the definition, realization, and continuous improvement of L1/L2 system architectures and embedded technology platforms. Drive end-to-end architectural design across products, platforms, and product families, maximizing reuse and modularity. Resolve complex, cross-domain architectural challenges spanning software, hardware, and systems engineering.

Remote Venture Capital Analyst needed for contract role. Evaluate VC projects, conduct TAM analysis, and source deal opportunities. Minimum 2 years of VC experience required.