developer English-speaking jobs in Leidschendam

Resato Hydrogen Technology seeks a Tender Manager to oversee the entire tender process, from analysis to proposal submission. The role involves collaborating with various departments, developing winning solutions, and ensuring timely documentation.

Secfi is seeking a Senior or Lead Product Manager to own a large, complex scope of products. Responsibilities include defining and shipping new capabilities for Maeve, our AI planner, and our core equity planning tools. The ideal candidate has 6+ years of product experience, a track record in unstructured, high-ownership environments, and analytical strength. Experience with AI and a product marketing instinct are also desired.

International Development Instructor program offers 10-month opportunity to contribute to sustainable development projects in Malawi, Zambia, or India. Program includes 3 months of training in Denmark, 6 months of project work, and 1 month of reflection. Must be over 18, comfortable speaking English, and able to reside in Denmark.

Sr. R&D Scientist will develop new medical devices from ideation to market. Responsibilities include designing and testing intraocular lenses, developing test methods, and staying current with industry trends. Requires a BS/MS/PhD in Optics, Physics, or Vision Science and 3+ years of relevant experience. Proficiency in optical design software and research experience are necessary.

As a CSV Specialist, you will ensure reliable and compliant computerized systems. You will lead validation and implementation projects, develop CSV standards, and translate regulations into organizational practice. You will also coach colleagues and advise management on CSV matters.

Senior Designer to conceptualize and execute digital experiences for global brands. Expertise in UI design, Figma, and AI tools required. Proven ability to translate brand strategies into user journeys and collaborate with cross-functional teams. 5+ years of experience in digital design, UI/UX, or creative roles.

Lead Data Analyst translates business problems into data products and actionable insights. Partners with stakeholders to design, build, and maintain scalable reporting and dashboards. Drives analytical best practices, mentors analysts, and shapes analytics delivery across the organization. Requires 5+ years of experience in data analytics, strong SQL and Python skills, and experience with BI tools.

Temporary Clinical Research Associate (CRA) needed for diabetes, obesity, and metabolic disease studies. Responsibilities include site monitoring, data verification, and ensuring regulatory compliance. Requires a Bachelor's degree, previous monitoring experience in the Netherlands, and fluency in Dutch and English.

Human Resources Business Partner will provide HR advice and support to leaders and employees in the Netherlands. This role involves partnering with managers on employee relations, talent development, and organizational change initiatives. The ideal candidate has several years of HR experience in the Netherlands, strong knowledge of Dutch employment law, and excellent communication and relationship-building skills.

Security Management Specialist needed to elevate security maturity by bridging ISO 27001/2 frameworks and Agile/DevOps engineering. Responsibilities include risk management, secure design, audit readiness, and security awareness training. Experience in IT support, systems development, or Information Security is required.

Independent Working Chef Level I needed for global/Chinese/Indonesian restaurant. Prepare and present dishes, work under head chef guidance, and manage kitchen independently. Follow established guidelines for ingredients, recipes, and presentation.

Data Processor needed for offshore trenching data processing using EIVA software. Experience with NaviEdit, NaviModel, and NaviPac required. Prior subsea cable or trenching experience preferred.

Senior Offensive Security Specialist will engineer, hack, and emulate real-world threats against client IT environments. Responsibilities include identifying security weaknesses, providing technical recommendations, and performing offensive research. Requires a Computer Science degree, experience with web application security testing, complex infrastructures, and operating systems. Fluency in English is required.

Learning & Development Operations specialist needed for a 6-month contract. Manage end-to-end learning program delivery, including LMS administration, reporting, and stakeholder coordination. Requires 3+ years' experience in learning operations, program management, and LMS administration.

Mechanical Engineer Aftertreatment will lead development and integration of exhaust aftertreatment systems. Collaborate with multidisciplinary teams to optimize products and drive innovation. Apply Six Sigma and DMAIC methodologies for problem resolution. Ensure hardware meets performance, emissions, reliability, and manufacturability standards.

Manage and develop relationships with B2B customers, ensuring platform adoption, driving retention, and identifying growth opportunities.

Experienced Training Manager needed for a major PLM and SAP integration program. Design, manage, and deliver training for Key Users and End Users on SAP R/3 and new PLM solutions. Strong SAP manufacturing, PLM, and training management experience required.

Assistant Professor of Clinical Psychology to teach and conduct research on mechanisms, prevention, and treatment of mental health disorders. PhD in Clinical Psychology required. Experience in academic teaching and research, and fluency in Dutch and English are essential.

Senior Business Analyst to lead product development and integration for Digital and Traditional Assets platforms. Translate business requirements into technical solutions, define workflows, and collaborate with stakeholders.

Technical Support Engineer provides first-line technical support, troubleshooting, and solutions to customers. Collaborates with cross-functional teams to resolve issues, identifies trends, and contributes to continuous improvement. Develops training programs, investigates root causes of quality issues, and participates in product documentation development.