qa English-speaking jobs in Leidschendam

Data Scientist specializing in marketing analytics and Market Mix Modelling (MMM) to advise clients on marketing strategy and budget allocation.

Lead Software Engineer with 8+ years of experience in .NET Core, Azure, CI/CD, and some JavaScript. Strong communication and team leadership skills required.

Field Service Technician / Engineer (HVAC) for a global leader in building automation and energy solutions. Install, configure, and maintain HVAC control systems across various environments. Troubleshoot faults and advise clients on system performance. Requires MBO qualification in a relevant field and experience with HVAC/building automation systems.

Fullstack Web Developer with expertise in React, Laravel, and CI/CD practices. Will work on web applications, contribute to architectural design, and utilize AI tooling.

Software Engineer to design and implement API layer for network security monitoring platform. Requires strong PowerShell and C# expertise, Azure experience, and a collaborative mindset.

As a Product Owner, you will translate the product vision and roadmap into a concrete backlog for the Platform Engineering team. You will manage and structure the team backlog, set priorities, and translate roadmap items into clear backlog items. You will also plan sprints and releases, monitor progress, and ensure feedback is incorporated into the work.

FP&A Controller will lead budgeting, forecasting, and financial planning processes. Manage monthly reporting, develop financial models, and analyze data to support strategic decisions. Collaborate with stakeholders, monitor financial performance, and support strategic initiatives. Requires a finance degree, 5+ years FP&A experience, strong analytical and communication skills, and proficiency in financial software.

Assemble complex mechanical and/or electromechanical modules based on technical drawings, work instructions, and procedures. Perform visual inspections and basic functional checks, identifying and reporting deviations.

Senior Data Scientist to design and develop AI-ready services for medicinal chemistry and healthcare. Focus on transforming APIs into intelligent, agent-driven systems for data retrieval and decision-making.

Facilities Management Intern supports daily office operations, onboarding, logistics, and events at a fast-growing AI startup.

Configuration Engineer needed for large-scale, one-off engineering projects, such as naval frigates. Define and implement configuration management plans, manage product structure and data within a PLM system (3DX), and ensure compliance with configuration management procedures.

As Head of Category Shop & Workshop, you will develop and execute the category strategy, manage performance, and lead a team of Category Managers, Buyers, and Specialists. You will negotiate supplier contracts, drive assortment innovation, and ensure strong lifecycle management.

Lead direct sales of robotic greenhouse solutions in the Netherlands and Belgium. Manage the full sales cycle, build grower relationships, and represent the company at industry events.

Founder's Associate Intern will work directly with the CTO on high-priority projects, supporting product and engineering initiatives.

System engineer to define design requirements for a revolutionary dynamic window based on experimental data. Requires 5+ years experience in system engineering, a Master's or PhD in a relevant field, and strong understanding of physics, electronics, and mechanics. Must possess excellent communication and problem-solving skills.

Manages all aspects of large outsourcing engagement start-up, including due diligence, solution architecture, and program management. Leads cross-functional teams and ensures client satisfaction and profitability. Requires 15+ years of experience in large deal delivery with a global delivery model.

Róhe, an Amsterdam-based fashion label, seeks a Buyer Womenswear (End-to-End) to manage purchase orders, track in-season sales, and ensure on-time delivery. The role requires 3-5 years of experience in buying, purchasing, or merchandising within luxury fashion.

NTG Commercial Graduate Program offers a two-year development pathway across Southern Spars, Future Fibres, Hall Spars, and RigPro. The program provides structured rotations and exposure to commercial and marketing disciplines. Graduates will contribute to live projects and gain a deep understanding of the marine and performance technology sector.

Senior Machine Learning Engineer designs, builds, and deploys AI solutions used in production environments. Leads projects, translates business challenges into technical solutions, and collaborates with teams. Requires 4+ years of experience in software, ML, or AI engineering, cloud platforms, and project leadership.

Platform Transformation Architect will design and shape platform strategies, build Internal Developer Platforms (IDPs), and improve developer experience. Responsibilities include defining golden paths, self-service capabilities, and driving adoption by aligning teams and stakeholders. Requires experience in Platform Engineering, DevOps, or SRE, cloud platforms, Kubernetes, IaC, and CI/CD.