developer English-speaking jobs in Leidschendam

Data Engineering Intern to support innovation by designing data pipelines, performing data analysis, and building interactive tools. Requires proficiency in Python, SQL, and data analysis libraries.

Staff AI Engineer will design, build, and maintain AI-powered services and APIs leveraging LLMs and custom ML models. Develop an enterprise-grade agentic framework and implement knowledge retrieval systems. Write Python code for production services, experimentation, and internal developer tools. Collaborate with cross-functional teams on architecture and API standards.

Provide after-sales service for industrial packaging machines installed throughout Europe and occasionally outside the EU. Install retrofits, perform tests, train customers, and diagnose technical problems. Strong service orientation, technical training in industrial automation, and knowledge of PLC's such as Siemens S7 and Siemens TIA are required.

Uber seeks an attorney with expertise in European payments and financial services to advise the EU Payments team on regulatory compliance and new product development. The Counsel, Payments EU will provide legal guidance on payments, fintech, consumer protection, AML, KYC, sanctions, and other relevant areas.

JOBWELL B.V. is seeking motivated and reliable individuals for warehouse, production, or cleaning roles in the Rotterdam region.

Production Employee needed for a rotating shift schedule. Tasks include assembling, finishing, and inspecting plastic drums, maintaining a safe work environment, and performing quality checks. Must be physically fit, have a practical mentality, and be proficient in Dutch and/or English.

Data Engineer needed to design, build, and operate data pipelines and models for reporting, analytics, and operational insight. Will integrate data from multiple sources, ensure data accuracy, and support production operations. Requires 3-5 years of experience in data engineering, data integration, or analytics engineering. Proficiency in SQL, PySpark, and Azure data platforms is essential.

Senior .NET Developer to rebuild a complex business application into a modern, cloud-native solution on Azure. Design and implement backend services and APIs in C#/.NET, translate business rules into code, and collaborate with DevOps engineers on deployment and security.

Full Stack TypeScript Developer will build and maintain web interfaces for SaaS portals and charging robots. Develops high-quality front-end and back-end solutions in TypeScript across the full stack. Translates functional requirements into clean, maintainable, and scalable implementations.

Senior Director, Hotel Management Agreements will build relationships with hotel owners, investors, and lenders. This role leads owner meetings, guides conversations on budgets and performance, and partners with teams to bring projects to fruition. Requires 15+ years of experience in hospitality, asset management, or HMA management.

Leads a Customer Collaboration team, orchestrating CPFR and S&OP processes to ensure seamless supply chain execution for major partners. Manages the end-to-end order-to-cash cycle, optimizing "Total Cost to Serve" while maintaining elite service levels. Develops dashboards to track supply chain health and implements solutions to improve operational efficiency.

Design and deliver structural engineering for superyachts (50-140m). Collaborate with project leader, draftsmen, production, and purchasing. Create technical drawings, verify accuracy, and ensure material quality and timely delivery.

Software Engineer to accelerate AI-assisted development. Focus on improving engineering workflows, migrating legacy systems, and enabling teams to adopt new technologies. Requires 8+ years of experience, strong coding skills, and a passion for experimentation and collaboration.

Data Science Graduate Trainee will translate business problems into analytical models, collaborate with various teams, and build/test machine learning models.

We seek final-year PhD candidates or recent graduates (0-1 year) specializing in High-Tech, Deep Tech, Engineering, Applied Sciences, Physics, AI/ML, Robotics, Electronics, Photonics, MedTech, or related fields to collaborate on turning research into a startup.

Senior Financial Controller ensures accurate financial reporting, compliance, and accounting governance for multiple EMEA legal entities. Collaborates with stakeholders across Finance and Operations, driving process improvements and supporting finance transformation initiatives.

Leads cross-functional teams to configure, deploy, and operationalize data-driven solutions for clients in Oil and Gas, Power & Utilities, and Manufacturing. Develops and deploys scalable solutions using Cognite's core capabilities and collaborates with data engineers, project managers, and solution architects.

The Royal Netherlands Institute for Sea Research (NIOZ) seeks a Head of Analytical Laboratories / Specialist in Isotope Geochemistry. This role requires a hands-on scientist with experience in (metal/inorganic) stable isotopes and their application in marine sciences. The candidate will lead daily operations, serve as the primary operator of the MC-ICP-MS, and develop and maintain MC-ICP-MS methods.

Drive new business development for security assessments in the Benelux and DACH regions. Identify and qualify opportunities within software-driven organizations, including software-only businesses and SaaS companies. Build and maintain relationships with senior stakeholders such as CIOs, CISOs, and CEOs. Translate technical services into clear and compelling commercial propositions.

Senior real estate notary candidate sought for Rotterdam location. Handles complex real estate files, advises clients, and contributes to practice growth. Requires a completed notarial law degree, successful completion of notarial professional training, and minimum 8 years of experience.