javascript English-speaking jobs in Haarlem

Technical Project Manager for client-facing datacenter projects. Manages full project lifecycle, from client onboarding to technical delivery and budget oversight. Requires 3+ years of datacenter operations experience, technical client interaction, and proficiency with ITSM tools.

Emporix seeks a Head of Sales for EMEA North to lead sales strategy, build pipeline, and establish the company's presence in the region. This founding role requires experience in SaaS sales, ideally within digital commerce, and the ability to navigate both mid-market and enterprise landscapes.

Eaton seeks a Services Cluster Manager to oversee service operations and growth across Benelux and Eastern Europe. The role involves managing teams, ensuring customer satisfaction, and achieving financial and operational targets. Requires proven general management experience, P&L responsibility, and experience managing international teams.

Technical Writer needed to create user manuals, training materials, and project documentation for packaging machines. Must have experience with technical writing, content management systems, and CE processes.

Functional administrator responsible for the reliability, security, and continuity of building management systems and safety and security systems. Ensures systems are stable, secure, and up to date, monitoring updates, security levels, and system performance. Collaborates with IT specialists, maintenance partners, and building automation specialists. Requires in-depth knowledge of building management and safety and security systems and strong communication skills.

Designs, implements, and manages core infrastructure across data centers, networks, and cloud environments. Ensures high availability, security, and performance. Supports and enhances security controls, risk analysis, and incident response. Provides Level 3 support and contributes to continuous service improvement initiatives.

Sous Chef to lead banqueting, breakfast, and afternoon tea operations at the Amstel Hotel. Will oversee preparations, service execution, and team management. Supports the à la carte kitchen as needed. Requires proven experience in a luxury or high-volume environment and strong leadership skills. Fluent English required.

Supports Customer Support Engineers in investigating engine and generator set malfunctions and defects. Collaborates with dealers on repairs and provides technical advice. Handles warranty claims and customer complaints.

Senior .Net Full Stack Developer will contribute to the development of OpenUp's mental health platform. Responsibilities include writing code, mentoring team members, and collaborating with third parties. Requires 5+ years of .Net backend API experience, 2+ years of React/Angular/Vue experience, and DevOps knowledge.

Flink seeks enthusiastic riders to deliver groceries using e-bikes or e-scooters. Drivers will ensure timely deliveries, maintain a presence at the warehouse, and provide exceptional customer experiences. Must be at least 16 years old, eligible to work in the Netherlands, and speak English or Dutch.

Product Designer (CRO) will optimize conversion across digital platforms, translating data and user behavior into impactful design solutions. Collaborate with developers, product owners, and stakeholders to design and deliver end-to-end UX solutions, conduct user research, and analyze the booking journey.

IT Support & Infrastructure Engineer needed for a hands-on role combining operational support with project work. Responsibilities include supporting local infrastructure, resolving IT queries, installing/configuring hardware/software, and contributing to IT projects. Requires an MBO-4 level of education, 3-5 years of IT experience, and knowledge of Windows workstations, Active Directory, and basic networking.

Senior Property Risk Consultant will conduct surveys, assess account operations, exposures, and control adequacy. Provides loss control expertise to customers and business partners. Requires minimum 7 years' experience in engineering/loss prevention surveys and technical expertise in Property exposure identification and control adequacy.

CE truck driver needed for deliveries in South Holland. Must have a valid CE driver's license, Code 95, and experience driving tractor-trailer combinations. Fluent in Dutch and/or English required.

Business Development Representative Intern to join the Belux Sales Team. Gain hands-on experience in sales, support, and marketing. Fluent in German, good English skills required.

Define and execute commodity price risk management strategy for a global energy portfolio. Analyze financial markets, execute trades, and manage a €500m annual spend across gas, power, carbon, and resins. Expand risk management into diesel and bunker fuel.

Lead and manage a team in a vibrant restaurant setting. Responsibilities include employee scheduling, training, performance management, and operational support. Ensure guest satisfaction and adherence to safety and hygiene regulations. Previous experience in a similar role is required.

Electrical Engineering intern will design and implement a testbench to verify the safety, performance, and functionality of PLC-based I/O modules. Responsibilities include hardware setup, software development, automated testing, and reporting.

Business Analyst to partner with Sales, Marketing, and Customer Service to gather requirements and map CRM processes. Configure Dynamics 365 Sales, Marketing, and Customer Service using OOTB and Power Platform features. Integrate Dynamics 365 with SAP S/4HANA and other systems. Validate migrated data and build dashboards/reports. Lead User Acceptance Testing and provide post-launch support.

As Enablement Coordinator & Release Train Engineer, you will drive operational and tactical execution of a large-scale IAM transformation program. You will own the Agile Release Train's function, coordinate enablement teams across multiple countries, and ensure alignment with the Senior Programme Manager's strategic direction.