internship English-speaking jobs in Middelburg

Sales Supervisor to lead and supervise daily sales operations, primarily in the European market. Responsibilities include driving revenue growth, expanding market penetration, and supporting digital transformation initiatives. Requires 5+ years of B2B sales experience in petrochemical/chemical sectors, fluency in English, and strong analytical and communication skills.

Drive international sales of protein and immunology-based reagents, diagnostic products, and custom OEM solutions. Manage a global client portfolio and uncover new opportunities in diagnostic, clinical, and research markets.

Process customer VAT refunds, ensuring maximum efficiency and timely payment. Guide clients through the process, communicate with partners and tax authorities, and handle administrative tasks. Fluency in Serbian, Croatian, or Slovenian and English required.

Establish and grow strategic partnerships to accelerate Qonto's expansion in the Netherlands market. Identify and secure key alliances to serve Dutch SMEs and freelancers. Lead end-to-end partnership negotiations and drive brand-building initiatives. Collaborate cross-functionally with Product, Marketing, and Sales teams.

The Regional Sales Director, Kérastase, drives profitable sales growth and brand expansion within a designated zone. This role requires a strategic thinker with a P&L mindset, talent development expertise, and a deep understanding of market dynamics and luxury brand management. Responsibilities include developing sales strategies, managing the regional P&L, expanding the brand network, and leading a high-performing sales team. The ideal candidate will have a Bachelor's degree, 5+ years of progressive leadership experience in sales management within the luxury beauty industry, and a proven track record of driving profitable sales growth.

Global Business Director leads strategic decision-making, drives collaboration, and shapes the global central adaptation model for a leading marketing agency. This integrated role involves developing the global business and its P&L, collaborating with cross-functional teams, and building strong client relationships.

Production Worker assembles, checks, and prepares products for shipment. Tasks include following instructions, using basic tools, and maintaining a clean workspace. Must be able to work independently and as part of a team.

Launch and operate the Stranger Soccer brand in Amsterdam. Responsibilities include securing partnerships, recruiting staff, driving player acquisition, and ensuring a high-quality game experience.

The Restaurant Manager oversees daily operations of the restaurant, bar, and breakfast service, ensuring high service standards and guest satisfaction. Responsibilities include team management, performance monitoring, and compliance with regulations.

As a Global Procurement Officer, you will manage purchase requests, process Purchase Orders, and support onboarding new suppliers. You will collaborate with global teams, provide process guidance, and contribute to process optimization.

Senior Full-Stack Developer to develop and maintain cross-platform interfaces using React. Refactor and modernize components, improve product performance and design, and collaborate with a small agile team.

Senior Back End Engineer & Tech Lead to develop, refine, and scale SaaS products. Focus on back-end development and deployment of applications. Lead, mentor, and support software engineers.

Warehouse employee needed for a fast-paced environment preparing and shipping IT products across Europe. Must be comfortable working with a team, have good communication skills, and be able to maintain accuracy while working quickly.

Senior Software Engineer to optimize a Java-based software suite for forensic DNA analysis. Focus on a browser-based document editor, ensuring security and precision in legal reporting. Expertise in JavaScript, TinyMCE, NPM, Node.js, and Docker required.

The IT Ops Specialist will perform software implementation and maintenance, provide technical support for NATO systems, and assist with system administration tasks.

Build and scale microservices in Kotlin for the Transport Planning team, powering smarter supply chain operations. Design and deliver technical solutions aligning with architecture and business processes. Hands-on development: create proofs of concept, write clean code, implement automated testing, ensure security and code quality, and set best practices. Collaborate and share expertise with cross-team initiatives.

Develop and promote overseas energy storage business sales. Manage commercial contract and price negotiation, product quotation preparation, and project team coordination.

As a Center of Innovation (COI) Chemist for Metalforming, you will develop and improve industrial fluid products used in metalforming processes. You will perform lab work, support product development projects, and collaborate with an international R&D team.

Governance Officer for international provider of corporate and fund services. Responsibilities include preparing legal documents, assisting with client onboarding, and providing support for AML, regulatory, and tax reporting services. Requires a Dutch law degree, 2-5 years of relevant experience, and fluency in Dutch and English.

Inside Sales Specialist will drive commercial performance through the e-commerce channel. The role involves managing digital leads, building customer relationships, and exceeding sales targets.