developer English-speaking jobs in Leidschendam

Head of CRM & Lifecycle Marketing to own customer engagement strategy, driving initiatives to increase activity and value. Lead the CRM function, build personalized journeys, and manage a team of three.

Sommelier role at Vermeer Wijnkamer. Link between kitchen and service, providing subtle, personable service. Requires 2+ years as assistant sommelier in fine dining, MBO 4 diploma, wine affinity, and fluent English.

Experienced Business Operations Manager needed to co-lead the annual planning cycle. This role drives governance, stakeholder alignment, and execution across functions, translating strategy into actionable plans and OKRs.

Territory Sales Manager representing Surgical Energy & Devices. Promote innovative solutions, target new business, and manage existing accounts. Requires strong communication in Dutch & English, and a valid driving license for travel.

Naval Architecture Drafstman produces and maintains drawings for hull, tank, and deck layouts in the petrochemical sector. Develop vessel layouts supporting stability and operability, integrating marine systems. Requires a degree in Naval Architecture and 1-5 years of relevant experience.

Train and fine-tune proprietary speech-to-text models across 24+ European languages. Build experimentation platforms, design rigorous experiments, and push domain-specific accuracy using Python and PyTorch.

CFD Modeling Internship focused on fluid dynamics for fermentation tanks. Model mass and heat transfer to optimize next-generation bioreactor design using real experimental data.

Serve as the primary contact for global distributors, managing the full order lifecycle for international Nike and Dakine accessories. This role requires strong communication, problem-solving, and experience in order-to-delivery processes.

Senior Assortment Planner needed for a leading retailer. Requires 5+ years in Retail Merchandising or Planning, strong communication, and deep expertise in assortment, merchandise, financial, product, and supply planning.

Manage project execution for vessel construction at international yards, ensuring on-time, on-budget delivery. Oversee engineering, supply chain, and production for multi-disciplinary teams. Requires relevant engineering background and 3-5 years of project management experience.

Business Development Manager to drive growth in Home Care, Personal Care, and I&I segments across Benelux. Manage specialty ingredient portfolios, develop new business, and build strong customer and supplier relationships. Requires relevant degree and 3-5+ years of sales experience.

Packaging Operator prepares and packs cleanroom garments following strict quality standards and procedures. This role requires precision and attention to detail in a controlled environment.

Creator Growth Intern focusing on data analysis, creator outreach, and monetization for TikTok Commerce. Requires Dutch proficiency, strong social media understanding, and basic data analysis skills.

Lead the creation and maintenance of material, packaging, and product specifications globally. Serve as the SME for specification data, driving governance, data integrity, and process improvements across R&D, Quality, and Operations.

Field Sales Representative to present and sell TheFork products to restaurant owners. Requires fluent Dutch and good English, with proven B2B sales experience and a results-oriented approach.

Support the FP&A Director for Professional Haircare by driving budget and planning processes. This role involves management reporting, variance analysis, and providing proactive financial guidance to stakeholders. Requires 4+ years in relevant finance roles.

Senior Software Engineer needed to build scalable software using PHP, TypeScript, and Node.js. Own complex engineering initiatives, design distributed systems, and improve engineering standards.

Lead and build Nscale's 24x7 Security Operations Center. Manage SOC analysts to detect, triage, and escalate security events across infrastructure and enterprise systems. Improve workflows using automation and AI.

Support Engineer focusing on cloud communications, telephony, and collaboration technologies like Microsoft Teams Phone and Zoom Phone. Troubleshoot complex issues across VoIP, SIP Trunking, and UCaaS environments.

Senior Mechanical Engineer needed for marine and offshore projects. Responsibilities include supporting design and installation of mechanical systems, reviewing specifications, and developing engineering solutions for major equipment and piping. Requires a relevant degree and 5+ years of experience.