qa English-speaking jobs in Leidschendam

Technical Sales Specialist for Advanced Therapy Solutions. This field-based role drives technical engagements, qualifies complex opportunities, and shapes deals within the Benelux region. Requires a Master's in Life Sciences or related field and significant technical sales experience.

Develop innovative security platforms to process quality and security findings. Implement large-scale data pipelines, design complex models, and ensure data quality for improved security posture.

Junior Product Manager for a digital platform, linking business, residents, and development. You will shape the roadmap, translate needs into user stories, and monitor performance using data.

Design and deliver network and telecommunications infrastructure for mission-critical data centre projects. Lead technical design, produce detailed packages, and ensure compliance with international standards. Requires 5+ years in network infrastructure engineering.

Account Manager SaaS to own relationships with larger schools and districts. This role involves defining account management processes, managing onboarding, and coordinating administrative requests. Requires 4+ years of B2B experience and strong English.

P&ID Engineer needed to support complex boiler and steam generation projects. Responsibilities include developing and maintaining P&IDs, defining design parameters, and coordinating with multidisciplinary teams. Fluent Dutch and English are mandatory.

Customer Success Specialist ensures customer expectations are met or exceeded. Develop in-depth understanding of FPC Key Account needs to identify upsell and preserve revenue. Requires German fluency and strong English skills.

Own the technical direction of HyperProp, a trading platform. Design and optimize low-latency order entry, execution, and real-time risk engines using Rust and TypeScript. Requires 5+ years in software architecture with deep low-latency systems experience.

Warehouse Operative role involves handling, inspecting, sorting, packing, and dispatching vintage and valuable items. Requires accuracy, physical capability, and teamwork in a busy logistics environment.

Build features for a highly visited platform by developing for both iOS and Android using Flutter. Contribute to migrating native apps to a shared codebase while collaborating with designers and other teams. Requires 5 years of engineering experience, with at least 2 in Flutter.

Senior People Solution Specialist for BeNeLux. Manage compliant payroll, time records in SAP HCM, and employee benefits. Requires 5+ years in Dutch/Belgian HR payroll, knowledge of local legislation, and English/German skills.

Rooms Operations Supervisor leads and coordinates the housekeeping team to maintain high standards of cleanliness. This role involves organizing, coaching, and training staff while managing tasks under pressure. Proven leadership and organizational skills are required.

Senior ML Engineer builds production forecasting models for renewable energy and power markets. Focus is on time-series forecasting, weather data, and deploying ML systems. Requires 5+ years in applied ML with strong Python and software engineering skills.

Mission Critical Security Engineer focusing on Threat Hunting. Proactively identify threats and improve detection in complex environments. Develop and refine detection use cases using SIEM/SOAR platforms. Requires strong engineering fundamentals and cloud experience.

Assistant General Manager to support daily café operations and maintain high service standards. This role involves leading, coaching, and motivating the team while assisting the General Manager with sales and performance. Requires 6-12 months of relevant experience.

Lighthouse Reports seeks a Social Media Manager & Video Editor to build social presence for public interest investigative work. Responsibilities include content creation, platform execution, and managing creator partnerships. Requires 3-5 years in video editing and social media management.

Associate Manager Logistics Excellence connects European logistics teams to improve performance and collaboration. This role drives improvement initiatives, manages cross-functional projects, and advances the regional sustainability agenda.

Logistics Associate role supporting supply chain operations in the warehouse. Responsibilities include handling, moving, and lifting products, coordinating end-to-end supply chain activities, and managing transportation. Requires detail-orientation and strong communication.

Warehouse Technician responsible for inspecting and maintaining technical systems and transport equipment. Duties include daily inspections, control studies, and carrying out repairs on warehouse machinery. Requires technical education and 1-2 years of experience.

Experienced Lab and Facility Operations Engineer needed to manage day-to-day lab and cleanroom operations. Responsibilities include equipment support, hands-on lab work, and maintaining facility infrastructure reliability.