developer English-speaking jobs in Leidschendam

Engineer will design, implement, and maintain enterprise LAN infrastructure. Responsibilities include configuring, optimizing, and troubleshooting switching, routing, and firewall rules. Support access layer services and monitor LAN health. Minimum CCNP Enterprise certification and 7+ years of experience required.

Software Developer to improve existing features, develop new ones, and identify technical solutions. Requires 0-2 years web development experience with PHP, JavaScript, CSS, and Git. Must have strong communication and analytical skills.

Experienced Python Developer to design, develop, and maintain business-critical systems supporting compliance, reporting, and financial data workflows in a trading operations environment.

Execute and improve the S&OP cycle, consolidating inputs from Sales, Operations, and Logistics. Prepare mid/long-term plans for all sites, balancing customer demand with capacity restrictions. Liaise with supply chain planners and support execution on local operations sites.

Digital Marketing Consultant to execute digital marketing activities for North American clients expanding into Europe. Support website management, localization, and campaign execution. Manage paid advertising campaigns, lead generation, and track performance. Bachelor's degree in marketing or related field and 2-3 years of digital marketing experience required.

Senior Front-End Developer will own front-end architecture and delivery for AI-native products. Responsibilities include building a shared component library and design system used across multiple AI platform products. Requires 7+ years of front-end development experience, mastery of HTML5, CSS3, JavaScript, and React, and strong TypeScript fluency. Experience with Styled Components, Figma, and AWS services is a plus.

Field Service Technician needed for a 6-month contract. Install, configure, calibrate, and support agricultural robotic systems at customer farms. Diagnose and repair mechanical, electrical, and software issues. Provide on-site and remote technical support and training. Collaborate with the engineering team and document service activities.

HR Operations Manager to build and professionalize HR operations, including payroll, compensation, benefits, and HR policies. Leads a team of three and reports to the HR Director.

Senior Pricing Analyst to develop and refine pricing strategies across customer segments and product lines. Analyze customer behavior, price elasticity, and competitive dynamics to optimize pricing structures and portfolio profitability.

VOCO seeks a passionate CAD-CAM Specialist to promote and support digital dental products to clinics and laboratories in the Netherlands. Responsibilities include product demonstrations, client advising, and territory management.

Technical Project Manager will translate product roadmaps into development plans, coordinate multidisciplinary engineering teams, and manage project timelines and risks.

Manage and grow FitForMe's established Benelux market, deepening existing relationships and identifying growth opportunities. Lead a small team of Product Specialists, coaching and developing their skills. Act as a key liaison between the Benelux region and global departments, ensuring local insights shape company decisions.

Drive sales and brand awareness for Les Deux in the Netherlands. Manage a seasonal sales budget, develop new business opportunities, and build relationships with key accounts. Present collections, analyze sales performance, and oversee order handling.

Optimize the TTINT platform, a vital system for international parcel flows, ensuring stability and scalability. Translate business needs into IT solutions, define user stories, and collaborate with stakeholders to achieve results.

Provide support for sustainability activities and administration within Karl Lagerfeld product teams. Assist with fabric certifications, social audit reports, and product sustainability tracking.

Early-career AI Builders design, develop, and deploy AI solutions for Fortune 500 companies using tools like Cursor, Claude, and Vibes. You'll work in a builder pod, receive mentorship, and develop both technical and sales skills. This role requires fluency in React, TypeScript, GraphQL, Python, OOP, and Real-Time Infra, as well as strong communication and problem-solving skills. Travel is required.

Lead a team of 3 transportation coordinators, overseeing daily operational activities and providing administrative support for national and international shipments.

As a IT Security Officer, you will implement security policies, conduct risk analyses, and manage the Information Security Management System. You will also coordinate audits, monitor supplier and cloud security, and lead security awareness initiatives.

Business Analyst to transform IT services for NATO's Digital Endeavour. Requires a Bachelor's degree, in-depth P3M knowledge, and experience with ServiceNow and JIRA. Fluency in English is required.

Software Tester needed for a full-time position at Sqills. Responsibilities include writing, reviewing, and executing manual and automated test plans and test cases. You will set up functional, performance, and security tests using various tooling. The ideal candidate has a Bachelor's degree and knowledge of testing techniques and test methods. Experience with test automation and programming languages is a plus.