developer English-speaking jobs in Leidschendam

Experienced Key Account Manager to manage and grow key accounts in the Netherlands. Develop and implement account strategies, identify growth opportunities, and collaborate with cross-functional teams. Strong relationship management, communication, and analytical skills required. Fluency in Dutch and English essential.

Junior Business Developer to drive growth for secure communication solutions in the Netherlands and Europe. Focus on building long-term relationships within public sector and defense industries. Requires a Master's degree and strong Dutch/English skills.

Sales Engineer to manage and grow the Geared Motors business in the Netherlands. This role involves building customer relationships, identifying opportunities, negotiating contracts, and promoting digital solutions. A strong command of English is required.

Experienced Ecommerce Manager needed to develop and execute client ecommerce strategies. Requires significant hands-on Shopify management, data analysis using GA4, and cross-functional project coordination.

Pilot Plant Buffer & Media Operator produces clinical material for advanced therapies, including media and buffers. This role requires adherence to GxP guidelines and involves preparation on scales from 10 ml to 200L.

Leads, coaches, and develops a team of 3 specialists in paid media and email marketing. Owns and defines the digital marketing strategy across all acquisition and CRM channels. Manages and allocates the digital marketing budget, ensuring spend is optimized and scaled based on goals and KPIs.

Transport Planner to plan, book, monitor, and report on transport routes across Europe, UK, and Ireland. Requires 3+ years of transport planning experience in logistics, understanding EU working time directives, and strong communication skills.

Drive commercial success for ABB's welding software portfolio globally. This role combines business development, technical consulting, and customer success to acquire new customers and grow the sales pipeline.

Own proposal responses for European and international defense and security markets. Manage the full lifecycle of RFPs, RFIs, and RFQs, leading high-quality content development. Requires 2+ years in technology proposal development.

Build the marketing function for an AI-native startup. Own brand, content, social, and events to build the demand engine end to end. Requires 1-3 years of marketing experience and proficiency in Dutch and English.

Working in a small friendly team as a Production Operative (Temporary), 40 hours p/week until 22nd December 2026. Position to be reviewed end of year depending on key account orders.

As the Market Data Champion, you will ensure data quality and consistency in customer databases for the Belgium and Netherlands markets. You will monitor data use, conduct analysis, and act as a liaison between local teams and the central data management team.

This internship involves predicting and validating sauce shelf life using chemical, physical, and sensorial analysis to build a prediction model. Key activities include protocol validation, analysis, and reporting.

Chef de Partie role in an iconic luxury hotel. Responsible for a section during lunch and dinner service, maintaining high standards in technique, flavor, and presentation. Requires professional culinary training and organizational skills.

Own the marketing strategy for Innercrowd, building the brand across European markets. Create integrated campaigns, tell customer stories, and use data to drive growth for live events. Requires 4+ years of marketing experience.

Sales Assistant role supporting the O2C process for the Dutch entity. Responsibilities include managing quotations, sales orders, and contract data. Requires excellent Dutch and English communication.

Senior Sales Manager for Marine Sales Benelux. This role drives consultative and transactional sales, focusing on strategic growth in Offshore & Subsea construction. Requires 7+ years in marine sales with technical understanding.

Product Marketer turns complex technology into clear value for recreation businesses. You translate product updates into stories, create whitepapers, and ensure sales have the right materials. Requires 3+ years in product marketing and fluency in Dutch and English.

Senior Graphic Designer to evolve and scale visual output for Trip.com. Lead high-quality design across digital touchpoints, own brand systems, and drive scalable solutions using AI and automation.

Event Marketer to drive Genexis's presence at international trade shows and support local events. Coordinate planning, execution, and digital activation for events, ensuring alignment with commercial and brand objectives.