qa English-speaking jobs in Leidschendam

Senior CRO Designer specializing in Paywalls and Funnels. Design, test, and optimize mobile conversion experiences, onboarding, and purchase journeys. Requires 5-8+ years designing consumer mobile experiences with expertise in subscription flows.

Experienced Financial & Project Controller needed for a growing renewable energy producer. Responsibilities include financial controlling, monthly close, and project controlling for investments. Fluency in Dutch is required.

Apply mathematics, physics, and machine learning to solve real-world problems across diverse markets like automotive and medical technology. Design and develop AI-driven solutions. Requires a Master's or PhD in a relevant technical field.

As an Inbound Warehouse Employee at DHL, you will receive, inspect, and process incoming shipments. Duties include scanning, prepacking, and placing products accurately in the warehouse. Must be 18+, available for 40 hours weekly, and have own transport.

Senior Mechanical Engineer involved in advanced maritime projects. Responsibilities include designing mechanical systems and piping for floating offshore units. Requires a relevant degree and at least 5 years of mechanical engineering experience.

Lead the development of intelligent automation within a SaaS platform as an AI Product Manager. Drive strategy, design, and delivery of AI-powered features, focusing on LLMs, AI agents, and optimizing workflows. Requires 3+ years of SaaS PM experience with AI product delivery.

Campus Lead responsible for delivering large-scale data centre campuses from pre-construction to handover. This senior role requires international project experience, main contracting expertise, and understanding of MEP/mission-critical environments.

Process Engineer Forming Specialist drives operational excellence in glass manufacturing. Responsibilities include managing forming processes, setting up blow molds, diagnosing deviations, and fine-tuning parameters like temperature and pressure. Requires analytical skills and a hands-on approach.

Support operational activities and projects within ESOCC and ECAMS. Responsibilities include planning, coordination, monitoring, and developing data-driven solutions. Requires experience in Justice/Home Affairs, stakeholder coordination, and reporting.

Design and build scalable data architecture to meet AI/ML needs. Develop and manage data ingestion pipelines, prepare data for analytics, and collaborate with Data Scientists on model deployment using cloud-native tools.

Lead a team managing end-to-end logistics for aircraft spare parts, including inbound/outbound flows, warehousing, and VMI/3PL services. Ensure efficient, compliant operations while driving continuous improvement.

The Analyst (P-3) collects, processes, and analyzes information to support Office of Special Missions activities, including investigations and technical assistance. Duties involve analytical support, legal review, and field mission participation.

As a DHL Express Route Courier, you deliver parcels to 50-80 addresses daily. This temporary role requires a valid B license, organization, and professional customer contact while working 4 days a week.

Experienced Project Manager needed for a global supply chain transformation. Lead end-to-end deployment of a next-generation planning solution, driving adoption of new, data-driven processes. Requires supply chain planning expertise and change management skills.

Lead business analysis for Digital and Traditional Assets platforms, bridging stakeholders and technology teams. Requires 8-12 years in Financial Services, strong exposure to Financial Markets, and hands-on experience with Digital Assets and Crypto Custody.

S&OP Controller supporting the financial aspects of Sales & Operations Planning. This role delivers financial insights, assesses business scenarios, and connects financial analysis with operational planning to optimize performance.

Protect systems and data for a global health platform. Coordinate security questionnaires, due diligence, and support the compliance program. Requires 1-2 years of experience and knowledge of ISO 27001 and GDPR.

Hands-on technical leader guiding software engineers to design and maintain APRO, a financial automation platform. Requires 5+ years of Delphi development and 7+ years of software experience.

Support the Sales team in Physical Identity & Access Management by processing orders, maintaining CRM data, and providing customer updates. Ideal for those studying Business or International Business.

Support commercial marketing teams to drive revenue growth and profitability. Responsibilities include pricing, commercial agreements, forecasting, and managing customer interactions across a global base. Requires 3+ years in commercial marketing.