qa English-speaking jobs in Leidschendam

French-speaking Commercial Lawyer needed for an international organization. Provide day-to-day commercial legal advice, draft agreements, and advise on risk across European markets. Experience in fast-paced commercial environments is preferred.

Engineer Production Support - Exterior translates design concepts into production-ready technical solutions for superyachts. Responsibilities include developing designs, ensuring compliance, and resolving technical bottlenecks on-site. Requires a relevant BSc and 2-5 years of engineering experience.

Senior Java Developer joins an international agile team to develop and maintain systems for a financial client. Experience with Java 21, Spring Boot, Kafka, and NoSQL databases is required.

Account Exec to execute go-to-market strategy across Benelux. Responsibilities include managing the full sales cycle, identifying new business, and growing accounts through upselling. Requires 3-5+ years in B2B sales, fluency in Dutch and English.

Business Development Internship in Benelux supporting sales and marketing. Responsibilities include lead identification, qualification, meeting preparation, and market analysis. Requires a relevant degree, strong communication skills, and native Dutch.

Own complex technical problems from customer context to working solution. Build, integrate, and extend the product to meet diverse customer needs, identifying patterns for core product improvement. Requires strong software engineering fundamentals.

Senior Full Stack Engineer needed with 6-8 years of experience. Expertise required in TypeScript, Node.js, Next.js, and AWS Serverless. Responsibilities include building scalable applications, serverless solutions, and GraphQL APIs.

Build backend services and distributed systems for Nexus, the control layer of Europe's sovereign AI cloud. Focus on designing production-grade Go services, APIs, and asynchronous workflows for infrastructure management.

Internship in Marketing & E-commerce for a children's brand. Tasks include creating content for Instagram, Facebook, TikTok, and Pinterest, community management, and SEO support. Requires a creative business student fluent in English.

Experienced Trader needed for a proprietary firm specializing in U.S. Equity Options, Crypto Options, and Delta One products. Manage trading books, design strategies, and analyze market data. Requires 5+ years in relevant trading roles.

Strategic, data-driven SEO Specialist needed to support global brands expanding into US markets. Responsibilities include technical audits, content optimization, and AI visibility projects. Requires strong technical SEO knowledge and US English proficiency.

Provides pre-sales & after-sales support for semiconductor and thermal test solutions. Supports driver development and testing, performs service work, and assists customers with technical inquiries.

Oversee quality activities across Freemen Nutra's European operations. Serve as the regional quality contact for customers and suppliers, managing complaints, CAPA, and QMS improvement.

Software Engineer in Test to maintain and elevate critical mortgage application systems. Build and maintain automated regression test suites using Java, Selenium, and BDD within CI/CD pipelines in Azure DevOps.

Senior Salesforce Developer needed for a large Dutch financial services organization. Responsibilities include building functionality, developing integrations, and ensuring platform security using Apex, SOQL, and Flows. Requires 5+ years of Salesforce experience.

Account Manager New Business focuses on finding, approaching, and closing new B2B clients across Europe. Responsibilities include managing the full sales cycle, growing existing accounts, and contributing to sales strategy. B2B sales experience is required.

Junior Web Developer to maintain and improve project-specific web applications for a logistics project. Requires HTML, CSS, JavaScript knowledge and familiarity with a frontend framework.

Strategic Business Development Intern to support creating value for products through strategic partnerships with start-ups. Responsibilities include market research, stakeholder interviews, and developing go-to-market approaches. Requires enrollment in a Dutch university.

Senior Android Video Player Engineer needed for live streaming. Develop and optimize Android video player frameworks and SDKs, customizing ExoPlayer and ABR logic. Requires 7+ years of Android experience in Kotlin/Java, expertise in live playback, and familiarity with streaming protocols and ad integrations.

Application Engineer Power Management advises customers on smart energy systems, solving technical issues and commissioning installations involving generators, batteries, solar, and wind power. Requires an electrical engineering background.