qa English-speaking jobs in Leidschendam

Experienced CSV / Validation Engineer needed for equipment implementation and validation in a medical device manufacturing environment.

Office Manager / Front-Desk Specialist provides exceptional customer service, manages office operations, and greets visitors at the EMEA headquarters.

Picnic is seeking part-time or full-time production assistants to collect and pack orders in a high-tech warehouse. Assist in maintaining a clean and safe work environment. Must be at least 18 years old, physically fit, and available 24-40 hours per week.

Operator needed for greenhouse operations in Rijsenhout. Duties include preparing orders, operating machinery, conducting quality control, and handling warehouse tasks. Must be able to operate production machinery, have a driving license, and be willing to work shifts.

As a Senior Data Governance Platform Engineer, you will design and deliver reference data management solutions using TIBCO EBX. You will act as a technical expert, mentoring colleagues and ensuring high-quality data governance implementations. You will build scalable reference data management solutions that meet architectural standards and stakeholder needs.

Data Scientist will translate business challenges into data-driven solutions using machine learning, statistical analysis, and data visualization. Must have experience as a Data Scientist/Analyst with strong Python, R, or similar skills.

This FP&A Analyst Cost Controlling role reports to the Director of FP&A for EMEA. Responsibilities include providing cost and headcount guidance, analyzing financial data, and supporting budgeting and forecasting processes. The successful candidate will have strong financial, analytical, and communication skills.

Expands ACT's revenue and market presence by developing and managing a portfolio of corporate and institutional clients. Builds and grows the portfolio through prospecting, converting prospects, and increasing share-of-wallet. Runs discovery calls, proposes solutions, quotes, negotiates, and executes trades.

Experienced Project Manager needed for a long-term industrial waste treatment project in Central Europe. Manage all project phases, coordinate suppliers, engineering teams, and stakeholders. Technical background in industrial processing and environmental systems required. Fluent English mandatory, Dutch and German beneficial.

Senior Full Stack Developer (MERN Stack) will design, develop, and maintain a SaaS platform. Responsibilities include collaborating with product and design teams, writing code, architecting APIs, and mentoring junior developers. Requires 5+ years of experience with MongoDB, Express.js, React.js, and Node.js.

CM.com is seeking a Medior Backend Developer to develop and maintain the Conversational Router, handling millions of daily messages across channels like WhatsApp, RCS, and SMS. The ideal candidate has at least 3 years of experience as a backend developer with C#, .NET, and Cloud Services.

Prepare trolleys with food, snacks, and merchandise according to strict guidelines. Tasks include inspection, assembly, loading, unloading, administration, inventory management, and guidance of new colleagues. Must have lived in the Netherlands for at least 8 years.

Lead the end-to-end implementation of retail projects, translating approved designs into successful, on-time, and on-budget delivery across Wholesale and Travel markets. Manage 20 to 30 projects in parallel, coach junior Project Managers, and act as the key point of contact for stakeholders.

Lead all on-site activities for large/complex project site work, ensuring cost-effective execution of project deliverables in accordance with contract specifications, quality standards, schedule, and safety requirements. Maintain a detailed and up-to-date construction Health and Safety (H&S) plan.

This four-year PhD project investigates whether citizen collectives function as "schools for democracy." The researcher will examine the influence of participatory decision-making on members' civic engagement and pro-social tendencies both within and outside the collective.

Deliver packages and groceries as a part-time or full-time courier. We offer flexible schedules and opportunities for career growth. Must have a valid driver's license and commercial insurance if using a motorized vehicle. Weekend and weekday evening availability required.

Design, develop, and maintain cloud applications using .NET in Azure. Collaborate with cross-functional teams to deliver high-quality software solutions. Develop RESTful APIs and integrate third-party services.

Service Warehouse Coordinator ensures traceability of material stocks, maintains warehouse safety and security, and prepares inventory and equipment for efficient operations.

Lead and manage a team of project managers, overseeing large-scale, complex projects in a dynamic, multicultural environment. Ensure successful project delivery, customer satisfaction, and risk mitigation. Develop and mentor junior and medior project managers, fostering a high-performance culture.

Leads the creation and execution of data-driven strategies to deliver business growth for clients. Shapes campaign direction leveraging market dynamics, consumer behavior, and cross-functional collaboration. Builds strong client relationships and oversees strategic planning incorporating market research and consumer insights. Mentors Strategy Consultants and promotes a culture of collaboration.