qa English-speaking jobs in Leidschendam

Production Operator role in a modern factory, responsible for setting up and operating production lines for candy brands. Duties include monitoring quality, resolving minor technical issues, and working in a three-shift system. Requires a proactive, detail-oriented individual.

GL Accountant supporting the Finance Shared Services Center for AviusULD Netherlands and USA. Own the General Ledger, manage month-end closing, and ensure financial reporting and compliance. Requires 4-6 years of GL experience.

Forklift Driver needed for a leading international organization. Safely operate forklift for loading, unloading, transporting, and storing goods. Must have a valid Dutch forklift certificate and at least two years of recent experience.

Experienced Microsoft Teams Voice & Contact Center Engineer needed to design, configure, and implement solutions for enterprise customers. This hands-on role requires expertise in Teams Phone, Direct Routing, and contact center technologies.

Senior Backend .NET Engineer designs and scales systems for millions of users. You will design critical systems, improve technical foundations using .NET 8, Kubernetes, and Azure, and coach engineers.

Senior Data Product Architect designs data products, operating models, and governance frameworks to unlock business value. Leads full lifecycle delivery, drives data product thinking, and ensures data trust through governance tooling knowledge.

As Technical Account Manager, you will be the primary contact for the installed customer base, ensuring satisfaction and operational excellence. Responsibilities include managing customer relationships, coordinating maintenance, and identifying commercial opportunities. A Bachelor's in engineering is required.

Assemble technical systems for the electricity grid using technical drawings. This role involves transforming components into high-quality finished products across five specialized assembly stations. Requires vocational level skills and technical understanding.

Senior Business Development Manager drives pan-European market capture for a global technology integrator. This strategic role architects multi-million-euro commercial frameworks by translating complex micro-electronic component capabilities into high-value contracts for aerospace and defense manufacturers.

Lead the planning and execution of data center commissioning projects. Oversee timelines, budgets, and cross-functional teams to ensure facilities meet technical and operational requirements. Requires engineering degree and 5+ years of relevant project management experience.

Experienced AI Safety Red Teamer needed to identify vulnerabilities in frontier AI systems through adversarial testing. Responsibilities include designing prompts, uncovering model weaknesses, and evaluating behavior across high-risk topics. Requires 5+ years in AI Safety or related fields.

Senior Political & Economic Consultant needed for high-level analysis on Dutch and European governance. Responsibilities include political, economic, and institutional analysis, and producing policy-oriented briefings. Requires strong background in relevant fields and familiarity with Dutch policy.

Assistant Professor role in Law, Security, and AI at TILT. Focus on research and teaching regarding AI's impact on law enforcement and national security, respecting fundamental rights. Requires PhD and experience in human rights/AI.

Develop and improve application and Cloud architecture using Laravel, PHP, React TypeScript, Azure, Kubernetes, and Docker. Requires 3+ years experience, technical degree, and fluency in Dutch and English.

Senior Mechanical Engineer to design and develop high-quality machine lines and mechanical solutions for complex projects. Responsibilities include technical documentation, quality monitoring, and team coordination. Requires 5+ years of experience in machine building.

Lead offshore foundation projects as a technical authority, advising management on complex engineering challenges. Requires MSc/PhD in relevant engineering, expertise in monopile foundation, and strong commercial awareness.

Experienced Accounting Manager needed to own accounting for three entities in NL, BE, and FR. Requires strong Dutch statutory accounting, cost accounting, and manufacturing finance expertise. Hands-on role reporting to the Finance Director.

Oversee and manage physical security operations for Reddit's EMEA and APAC offices. Develop and implement regional security programs, policies, and crisis management plans across multiple sites.

Senior Embedded Software Engineer leads a multi-disciplinary team in the design, implementation, and testing of embedded products for industrial and medical applications. Requires experience with C programming, ARM microcontrollers, wireless technologies, and embedded Linux/RTOS. Strong leadership, communication, and problem-solving skills are essential.

Mid-Frequency Quant Researcher to generate and run intraday alpha end-to-end. Own the full research lifecycle, from hypothesis to live monitoring. Requires demonstrable MFT research experience and strong coding in Python or C++.