developer English-speaking jobs in Leidschendam

Join our international housekeeping team at Ambassador City Centre Hotel Haarlem. You will clean and prepare hotel rooms, making beds, changing linen, and ensuring high standards.

Production employee needed for a flexible 5-shift schedule at Mauser. Tasks include securing lids, trimming plastic, organizing products, and performing quality checks. Must be physically fit, comfortable in a fast-paced environment, and proficient in Dutch or English.

Leads the engineering of data security controls for JET's cloud-native platform, safeguarding sensitive structured and unstructured data. Designs, deploys, and manages Enterprise DLP solutions, extends data classification and DLP coverage to AI, and establishes data security policies and procedures. Collaborates with the Security Architecture team to embed cryptography and access controls into platform blueprints. Requires hands-on experience with DLP platforms, encryption, and data classification programs, strong technical depth in data protection disciplines, and analytical skills to evaluate data flows and configure DLP rules.

Business Analyst to collaborate with clients, analyze data, and develop data-driven solutions. Requires 3+ years of experience in business analysis, data analytics, or consulting, strong business acumen, and expertise in data analysis and presentation. Fluency in English is required.

Lead Quantitative Developer to own and evolve strategy codebase with direct P&L impact. Decompose problems, grow QDs, and drive alignment with infrastructure and research teams. Strong mathematical and algorithmic thinking, C++ and Python 3 experience, and a track record of growing engineers are required.

Supports the sales process from identifying customer needs to project execution. Develops tailored concepts, creates competitive proposals, and ensures smooth handover to project implementation. Collaborates with sales and internal teams to analyze customer requirements and translate them into successful sales concepts.

Lead the Front Office team at voco® The Hague, ensuring a seamless and memorable guest experience. Manage daily operations, coordinate VIP arrivals, and coach team members to deliver exceptional service. Previous Front Office leadership experience and a passion for hospitality are required. Flexibility to work varied shifts is essential.

Head of People for Warner Music Benelux will partner with local leadership teams to deliver a people agenda aligned with Central European, EMEA, and People Team priorities. This role will provide business partnering, advice, and support to leaders and managers across Benelux, ensuring robust operational foundations and accurate delivery of HR services.

Lead Quality Engineer to develop and execute quality strategies for production and new product introduction. Drive quality inspections, reviews, and audits across production, testing, and supply chain. Define, implement, and continuously improve quality procedures, standards, and documentation.

Finance Director to lead business partnership activities, financial planning, and accounting oversight for the Northern European region.

Clean hotel rooms and bathrooms at Bastion Hotels, including making beds, changing linens, dusting, vacuuming, and replenishing supplies. Must be able to work independently and speak Dutch or English.

As Product Owner for BauWatch CheckIn and the Worker App, you will define the roadmap for the Worker platform, drive commercial success, and ensure seamless integration with physical access hardware. You will manage the full product lifecycle, from gathering business requirements to launch and optimization.

Goldman Sachs Asset Management seeks a professional to manage fund launches and change events for Luxembourg, Dutch, French, and Poland domiciled funds. The role involves project management, stakeholder collaboration, and ensuring regulatory compliance.

Optical Metrology Technician will conduct 2D and 3D measurements on etched precision components, evaluating dimensional accuracy and product quality. Responsibilities include preparing measurement reports, interpreting results, and programming/operating CMMs.

Clinical Research Associate II will conduct site visits, build relationships with clinical sites, ensure patient safety, and monitor study progress. Requires experience in clinical research, understanding of clinical trial methodology, and strong communication skills.

Field Application Specialist providing pre- and post-sales customer support for qPCR and Digital PCR instruments and workflows. Troubleshoots customer issues, conducts product demonstrations, and provides technical training. Requires a MSc or PhD in a Life Science discipline, minimum 3+ years laboratory experience, and 3+ years in a technical support role. Must be fluent in Dutch and English.

Global Product Manager will own product P&L, define pricing and positioning, and develop product roadmaps. This role requires 3+ years of experience as a product specialist or 1-2 years as a product manager in the truck or crane industry. Fluency in English is required.

Lead and organize site logistics for a large semiconductor construction project. Plan, control, and coordinate logistics and site setup activities. Responsible for health & safety, costs, budgets, and quality standards within site logistics.

Tally Operator needed in a modern warehouse. Responsibilities include order picking, labeling, counting, and packing. Requires 1-2 years of logistics experience, an MBO level education, and the ability to work in rotating shifts. Must live within 30 km of Waalwijk.

Treasury Manager supports Würth Group Companies with liquidity management, foreign exchange, hedging, intercompany financing, and guarantee management. The role involves optimizing processes, developing treasury infrastructure, and serving as a trusted point of contact for international Group Companies.