67 English-speaking jobs in Haarlem

Senior Frontend Developer will lead and collaborate on a React-based operator interface for a safety-critical product. Responsibilities include translating traffic safety goals into user-friendly interfaces, ensuring code quality, and acting as the UI/UX expert within a backend-driven environment. Requires 5+ years of experience developing complex interfaces for real-time, device-facing equipment, expertise in React, TypeScript, gRPC, GitLab, and Docker, and strong communication skills.

Develops and operationalizes AI-assisted analytical and decision-support capabilities for end-to-end Supply Chain processes. Builds AI-agent-supported monitoring and operational analytics capabilities. Analyzes planning outcomes and identifies optimization opportunities. Collaborates with planners, manufacturing teams, analytics teams, and IT.

Senior Growth Manager & Studio Lead will own and accelerate growth of the Music Studio, including the Piano App. Responsibilities include defining and executing GTM strategies, leading a cross-functional growth squad, and driving global acquisition growth, subscriber base growth, and LTV improvement. Must have proven experience in mobile app growth marketing, a data-driven mindset, and the ability to operate autonomously.

Software Tester ensures cutting-edge games meet international standards. You will receive on-the-job training to master the complete testing process.

The Math Analyst will conduct mathematical analysis to calculate return, odds, and volatility for games. Responsibilities include collaborating with test engineers, resolving math-related issues, and ensuring games meet quality standards.

Hardware Engineer needed for development of roadside traffic systems. Requires experience with electrical design, Circuit Board layout, AltiumDesigner, pre-compliance testing, and a programming language related to hardware. Must have strong English skills and a Bachelor's or Master's degree in a relevant field.

Certification Engineer needed for aircraft modification projects. Analyze customer requirements, define aircraft structures, and assist with electrical design. Lead design reviews, prepare certification documents, and conduct testing. Bachelor's degree in engineering and 5+ years of aerospace experience required.

This role focuses on back office and support for global operations. Key duties include ticket management, coordinating global tool rollouts, leading the Flow Forum, and maintaining operational documentation. Requires 6+ years of operational experience.

Provides administrative and operational support to the EMEA Sales Team. Assists with proposal drafting, CRM updates, report creation, and client communication.

Finance Assistant to support the accounting team in managing global finances, budgets, and accounting practices. Responsibilities include invoice processing, financial record maintenance, and preparing financial statements. Requires 2+ years of administrative experience, preferably in accounting or finance, and strong Microsoft Office skills.

Full-stack software engineer to build systems and integrate with federal customers. Develop a global monitoring application using Golang, Python, PostgreSQL, and React. 6+ years of experience required.

Temporary shipping clerk position with a global leader in conveyance technology near Schiphol. You will pack and prepare finished orders for shipment, ensuring accuracy and secure transport. Requires relevant work experience, professional communication skills, and a collaborative approach.

Shipping Clerk needed for a global leader in conveyance technology near Schiphol. Temporary role with potential for direct contract. Responsibilities include packing orders, maintaining warehouse organization, and processing shipments. Requires logistics experience, English communication skills, and a Dutch forklift license is preferred.

Shipping clerk needed for a global leader in conveyance technology near Schiphol. Temporary role with potential for direct contract. Responsibilities include packing orders, maintaining warehouse organization, and processing shipments. Requires logistics experience, English communication skills, and a Dutch forklift license is preferred.

Senior Legal Counsel will support business growth and ensure legal compliance. Responsibilities include drafting, reviewing, and negotiating contracts, advising on legal risks, managing legal documents, conducting research, and collaborating with HR.

As a senior technical point of contact, you will guide customers through the AIMMS platform, from pre-sales through onboarding and technical account management. You will translate customer needs into technical solutions, advise on architecture and integrations, and deliver demos and workshops. You will also own technical account relationships, drive customer success, and act as an internal technical consultant.

Iron Mountain seeks a Warehouse Specialist to manage site logistics, inventory, and warehouse operations. Responsibilities include handling logistics tickets, maintaining customer stock levels, and ensuring compliance with safety codes.

Experienced Data Engineer needed to design, build, and maintain cloud-based data platforms. Develop AI-ready data architectures, integrate data from multiple sources, and ensure data quality, performance, and security. Collaborate with data scientists, analysts, developers, and business stakeholders.

Volunteers will assist with nature restoration at Beeckestijn country estate. Tasks include sawing maples and cutting out small maples to promote biodiversity.

IVN Zuid-Kennemerland and Natuurmonumenten are hosting a nature work day at Beeckestijn country estate on December 31st. Volunteers will saw maples and cut out small maples to improve biodiversity.