qa English-speaking jobs in Leidschendam

Senior Backend Engineer (Kotlin/Java, Kafka, DevOps) will build and scale microservices in Kotlin for the Transport Planning team. Responsibilities include designing technical solutions, hands-on development, contributing to technical standards, and collaborating with cross-team initiatives. Requires 10+ years of experience as a Backend Developer with expertise in Kotlin, MongoDB, Docker, Kubernetes, and Kafka. Experience with Cloud (Azure preferred), leading/mentoring developers, CI/CD, and strong communication in English are also required.

Senior Software Engineer to design, develop, and maintain scalable backend services for data preprocessing, observability, and data product pipelines. Experience with FastAPI, Pydantic, SQLAlchemy, Azure services (ADLS, ADF, Databricks), and Python (asyncio) is required.

Programme manager Environment develops and guides programme plans for sustainable and resilient environmental ecosystems. Responsibilities include monitoring programme developments, assessing project requests, translating client needs into project proposals, and managing programme data. Requires expertise in energy and water management, including renewable energy technologies, efficiency improvements, water supply and wastewater treatment, and waste management. Must have 10 years of experience and/or a strong affinity with energy, waste, and environmental management, combined with a relevant network and understanding of strategy and business planning. Fluency in English is required.

Senior Content Editor to elevate the visual identity of a premium luxury active swimwear brand. Transform raw photo and video materials into refined, sophisticated assets reflecting a "quiet luxury" aesthetic. 5+ years of experience in high-end video and photo editing within fashion, luxury, or premium lifestyle industries required. Advanced proficiency in Adobe Creative Suite.

Financial Controller for De Monchy Natural Products, reporting to the Manager Finance & Operations. Responsibilities include leading the monthly closing process, preparing the annual report, coordinating audits, developing Power BI reporting, and managing financial administration. Requires a Bachelor's degree in business economics or accountancy, 8+ years of finance experience, and fluency in English and Dutch.

Experienced Communications and Marketing Manager to lead initiatives across the Netherlands, Belgium, and Luxembourg. Serve as a strategic advisor on corporate communications and customer marketing activities. Drive media relations, client-facing activities, and marketing initiatives.

Quality Manager for 3 large projects at Siemens Mobility, focusing on audits, RCA, and customer communication. Requires strong Dutch language skills, experience with SharePoint and process management, and technical aptitude.

Winthrop seeks a detail-oriented Environmental Health & Safety Graduate to join its 2026 program. This role involves assisting with EHS policy implementation, risk assessments, and compliance monitoring. The successful candidate will have a Bachelor's degree in a related field and strong communication skills.

Project Engineer to manage projects from concept to delivery, coordinating suppliers, customers, and internal teams. Requires a mechanical engineering background, understanding of technical drawings, and strong organizational skills.

Platform Engineer to design, build, and maintain CI/CD pipelines in Azure DevOps. Develop security checks for AWS components and collaborate with software engineers to improve tooling. Contribute to system design, product discovery, and security controls. Requires 5+ years of experience in DevOps with strong AWS proficiency and scripting language experience (Python and NodeJS preferred).

Charging Technology Engineer will track charging technology, energy management, and smart grid trends. Manage technical communication with hardware suppliers and work with product managers and other teams to ensure seamless integration and operation of charging technologies. Assess the quality of new suppliers, hardware products, and internal electrical components. Validate new firmware releases and provide advice on technological and economic feasibility. Act as an expert on the connection between chargers and the Allego backend. Support Operations and provide advice for future developments and improvements. Perform technical analysis and support of charging issues.

Mechanical Architect needed to support high-tech customers in developing cutting-edge equipment. Collaborate with multidisciplinary teams to bring solutions to life, such as lithography machines, electron microscopes, and medical devices. Translate customer needs into specifications, define mechanical architecture, and manage project scopes.

This role combines customer support and operations for a mental health platform. You'll provide direct support to users and build systems to scale support for small businesses.

Experienced iOS developer to build high-quality native apps (Swift/SwiftUI) as part of mobile platforms. Collaborate with Android, KMP, and backend teams to deliver multi-label solutions with a shared core (Kotlin). Contribute to architectural decisions and introduce iOS best practices.

Senior Designer Mechanics will design and develop mechanical solutions for complex mechatronic systems. Translating functional specifications into manufacturable designs, this role requires 10+ years of experience in mechatronic and precision systems design.

Lead Electrical Technician to manage teams on industrial installation projects. Coordinate activities, oversee cabling and electrical system implementation, and ensure quality and safety standards. Requires 10+ years of experience in industrial electrical installations and proven team leadership. Fluent English, Dutch preferred.

Trader responsible for independently executing international trade transactions in grains, oilseeds, and feed and food ingredients. Manages the entire process from contract negotiation to completion, monitoring deliveries, and supporting accounts receivable control. Builds and maintains relationships with customers and suppliers.

Technical Engineer providing product expertise and support to Sales Engineers and clients. Responsibilities include technical training, troubleshooting, and creating training materials. Requires a Bachelor's degree in engineering, fluency in English, and willingness to travel.

This role involves managing MICE requests (meetings and events) and room reservations, ensuring outstanding service and attention to detail. The ideal candidate is solution-oriented, organized, and thrives in a fast-paced environment.

Strategy Associate Intern will support the leadership team on high-impact projects, including market research, expansion initiatives, investor reporting, and process optimization.