developer English-speaking jobs in Leidschendam

Commercial Intern to assist in administrative and technical support tasks. Must be a Master's student in Biology with excellent communication skills and experience working with scientists.

Provides customer service, processes orders, and assists the sales team. Requires 2+ years of experience in a similar role, proficiency in Dutch and English, and strong communication skills.

Flink, a leading online supermarket, seeks enthusiastic e-bike riders to deliver groceries efficiently and reliably. Deliveries are made using Flink e-bikes or e-scooters from strategically located hubs.

Accounting Intern to assist with daily accounting and bookkeeping activities, invoice processing, financial reporting, and account reconciliations. Must have strong attention to detail, analytical mindset, and knowledge of Excel.

The Director Project House & Distribution leads the Project Management and Distribution organizations for Siemens eMobility Charging in the Benelux. This role is responsible for project delivery, distribution execution, and governance, with a focus on operational excellence and continuous improvement. The Director oversees complex eMobility charging infrastructure projects, manages supply chain and logistics, and acts as a senior escalation point for critical issues.

Field Service Engineer needed to provide on-site installation, maintenance, and repair of power solutions. Responsibilities include troubleshooting, documentation, training, and proactive sales of customer services. Requires experience with electrical/electronic equipment repair and power electronic systems. Must be able to travel up to 80% of the time.

Night Receptionist needed for a 4-star hotel in Amsterdam. You will work the night shift (11 pm - 7 am), ensuring a smooth administrative transition and providing guest support. Experience in the Front Office, strong communication skills, and knowledge of English and Dutch are required.

Reach truck driver needed for a two-shift schedule (06:00-15:00 and 15:00-00:00) in a well-organized warehouse. Responsibilities include loading/unloading goods, moving pallets, processing shipments, order picking, and stock replenishment. Must possess a valid reach truck certificate, be accurate, physically capable, and able to work in a team.

Leads the commercial development, operational execution, and financial performance of the Industrial Projects business across Northern Europe. Develops scalable project logistics solutions, delivers complex cargo movements, and supports growth across sectors such as energy, infrastructure, and renewables.

This newly created senior role shapes One Frio's platform and integration strategy. The Group Platforms & Integration Lead owns the integration architecture, defines standards, and governs integration delivery across a heterogeneous system landscape. Responsibilities include designing and governing a repeatable OpCo connector framework, defining the Group EDI architecture, and driving technical onboarding for new OpCos.

Account Project Manager leads and executes complex projects from initiation to completion, ensuring timely delivery and adherence to brand and retailer guidelines. Manages cross-functional teams, client communication, and internal processes. Requires proven project management experience, strong communication skills, and proficiency in project management software.

Leads Quality Control, Safety & Security team, ensuring protocol implementation across operational sites. Supervises team members, conducts inspections, and manages incident response. Requires experience in compliance checks, incident response, and field operations team management.

Designs and delivers IT infrastructure for large-scale airport automation projects. Collaborates with customers, architects, and engineering teams to align requirements and deliver tailored infrastructure designs. Guides infrastructure implementation, including networks, virtualization, remote access, and security.

Experienced Microsoft Dynamics 365 Business Central Functional Consultant needed for a 12-month contract. Support optimization, rollout, and improvement of a business-critical ERP environment. Configure and customize functional areas across finance, operations, warehousing, and supply chain. Collaborate with stakeholders, technical teams, and project managers to deliver scalable solutions.

MODYN, a Dutch product design agency specializing in mobility, transport, and healthtech, seeks a Product Designer intern to collaborate on innovative product concepts. Interns will assist with research, design development, prototyping, and presentation preparation.

Senior Engineer specialist in cleaning & disinfection of areas, including material ingress contamination control. Develops, optimizes, and improves critical processes, systems, and equipment. Provides technical guidance and ensures alignment with quality standards.

Sales / Event Producer Intern will assist in planning, coordinating, and executing engaging events. Responsibilities include logistics, vendor management, on-site support, and contributing to event enhancements. Must have strong organizational and communication skills, be flexible, and passionate about creating memorable experiences.

Grinder needed for production of steel constructions for offshore wind farms. Responsibilities include reviewing route cards, operating grinding tools, and inspecting weld seams. Must have VCA-Basic and Aerial Work Platform (Hoogwerker) certificate or willingness to obtain.

The Senior Engineer Equipment will develop and enhance strategies for equipment life cycle management, using data analytics to resolve equipment failures and drive improvements. This role will analyze and develop engineering solutions for maintenance, quality, and safety initiatives, and serve as a technical asset owner and site SME for process and lab equipment. The Senior Engineer Equipment will also coordinate equipment system selection, design reviews, and commissioning activities.

This role focuses on safeguarding the security, compliance, and operational control of the enterprise network. Responsibilities include maintaining network security hardening standards, defining and documenting network security guidelines, coordinating audits, and mitigating audit findings. The ideal candidate has a strong understanding of network security principles, experience with network audits, and familiarity with control frameworks.